From ca0bb64cd0f1a4748d15bbd16e5bf11bf91eeaf0 Mon Sep 17 00:00:00 2001
From: xuyongfei <xuyongfei.huawei.com>
Date: Mon, 18 Jan 2021 19:31:39 +0800
Subject: [PATCH] serving, ut5

---
 cmake/external_libs/glog.cmake                |    6 +-
 .../ccsrc/common/proto_tensor.cc              |   18 +-
 mindspore_serving/ccsrc/common/status.h       |    3 -
 mindspore_serving/ccsrc/common/tensor_base.cc |    2 +-
 mindspore_serving/ccsrc/common/tensor_base.h  |    4 +-
 .../ccsrc/master/restful/http_handle.cc       |    8 +-
 .../ccsrc/master/restful/http_process.cc      |   93 +-
 .../ccsrc/master/restful/restful_request.cc   |   92 +-
 .../ccsrc/master/restful/restful_server.cc    |   12 +-
 mindspore_serving/ccsrc/python/serving_py.cc  |    3 +
 mindspore_serving/ccsrc/python/tensor_py.cc   |    6 +-
 mindspore_serving/client/python/client.py     |   37 +-
 mindspore_serving/log.py                      |   10 +-
 mindspore_serving/master/__init__.py          |    1 -
 requirements_test.txt                         |    2 +
 tests/ut/CMakeLists.txt                       |   17 +-
 tests/ut/cpp/runtest.sh                       |    7 +-
 tests/ut/cpp/tests/parse_restful.cc           |   15 +-
 tests/ut/python/runtest.sh                    |    6 +-
 tests/ut/python/tests/common.py               |   38 +
 tests/ut/python/tests/common_restful.py       |   75 ++
 .../python/tests/test_mater_worker_client.py  |  176 +--
 .../python/tests/test_restful_base64_data.py  |  949 +++++++++++++++
 .../ut/python/tests/test_restful_json_data.py | 1040 +++++++++++++++++
 tests/ut/python/tests/test_restful_request.py |  335 ++++++
 25 files changed, 2693 insertions(+), 262 deletions(-)
 create mode 100644 tests/ut/python/tests/common_restful.py
 create mode 100644 tests/ut/python/tests/test_restful_base64_data.py
 create mode 100644 tests/ut/python/tests/test_restful_json_data.py
 create mode 100644 tests/ut/python/tests/test_restful_request.py

diff --git a/cmake/external_libs/glog.cmake b/cmake/external_libs/glog.cmake
index e65d474..81089e4 100644
--- a/cmake/external_libs/glog.cmake
+++ b/cmake/external_libs/glog.cmake
@@ -1,12 +1,12 @@
 set(glog_CXXFLAGS "-D_FORTIFY_SOURCE=2 -O2 ${SECURE_CXX_FLAGS} -D_GLIBCXX_USE_CXX11_ABI=0")
 set(glog_CFLAGS "-D_FORTIFY_SOURCE=2 -O2")
-if (ENABLE_GITEE)
+if(ENABLE_GITEE)
     set(REQ_URL "https://gitee.com/mirrors/glog/repository/archive/v0.4.0.tar.gz")
     set(MD5 "22fe340ddc231e6c8e46bc295320f8ee")
 else()
     set(REQ_URL "https://github.com/google/glog/archive/v0.4.0.tar.gz")
     set(MD5 "0daea8785e6df922d7887755c3d100d0")
-endif ()
+endif()
 mindspore_add_pkg(glog
         VER 0.4.0
         LIBS glog
@@ -14,4 +14,4 @@ mindspore_add_pkg(glog
         MD5 ${MD5}
         CMAKE_OPTION -DBUILD_TESTING=OFF -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DBUILD_SHARED_LIBS=ON -DWITH_GFLAGS=OFF)
 include_directories(${glog_INC})
-add_library(mindspore::glog ALIAS glog::glog)
+add_library(mindspore_serving::glog ALIAS glog::glog)
diff --git a/mindspore_serving/ccsrc/common/proto_tensor.cc b/mindspore_serving/ccsrc/common/proto_tensor.cc
index 12e1095..2b8fd9e 100644
--- a/mindspore_serving/ccsrc/common/proto_tensor.cc
+++ b/mindspore_serving/ccsrc/common/proto_tensor.cc
@@ -241,7 +241,7 @@ Status GrpcTensorHelper::CreateInstanceFromRequest(const proto::PredictRequest &
   MethodSignature method_signature;
   if (!servable_signature.GetMethodDeclare(request_spec->method_name, &method_signature)) {
     return INFER_STATUS_LOG_ERROR(INVALID_INPUTS)
-           << "Method " << method_name << " is not registed for servable " << servable_name;
+           << "Method " << method_name << " is not registered for servable " << servable_name;
   }
 
   if (request.instances_size() == 0) {
@@ -269,7 +269,7 @@ Status GrpcTensorHelper::CreateReplyFromInstances(const proto::PredictRequest &r
   MethodSignature method_signature;
   if (!servable_signature.GetMethodDeclare(method_name, &method_signature)) {
     return INFER_STATUS_LOG_ERROR(INVALID_INPUTS)
-           << "Method " << method_name << " is not registed for servable " << servable_name;
+           << "Method " << method_name << " is not registered for servable " << servable_name;
   }
   *reply->mutable_servable_spec() = request.servable_spec();
 
@@ -305,7 +305,7 @@ Status GrpcTensorHelper::CreateReplyFromInstances(const proto::PredictRequest &r
       auto &output_tensor = output_intance.data[i];
       auto &proto_tensor = (*proto_items)[method_signature.outputs[i]];
       ProtoTensor result_tensor(&proto_tensor);
-      result_tensor.assgin(*output_tensor);
+      result_tensor.assign(*output_tensor);
     }
   }
   return SUCCESS;
@@ -356,9 +356,15 @@ Status GrpcTensorHelper::CheckRequestTensor(const proto::Tensor &tensor) {
     }
   } else {
     size_t element_num = tensor_input.element_cnt();
-    if (element_num == 0) {  // shape dim invalid or element count > max element num
-      return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "Tensor check failed: input "
-                                                    << " shape " << tensor_input.shape() << " invalid";
+    bool zero_dim = false;
+    for (auto &shape_item : tensor_input.shape()) {
+      if (shape_item < 0 || zero_dim) {
+        return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "Tensor check failed: input "
+                                                      << " shape " << tensor_input.shape() << " invalid";
+      }
+      if (shape_item == 0) {
+        zero_dim = true;
+      }
     }
     if (tensor_input.data_type() == kMSI_Unknown || tensor_input.itemsize() == 0) {
       return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "Tensor check failed: input "
diff --git a/mindspore_serving/ccsrc/common/status.h b/mindspore_serving/ccsrc/common/status.h
index b5d8e8f..4fd3712 100644
--- a/mindspore_serving/ccsrc/common/status.h
+++ b/mindspore_serving/ccsrc/common/status.h
@@ -63,9 +63,6 @@ class Status {
   }
 
 #define INFER_STATUS(code) mindspore::serving::Status(code) < mindspore::serving::LogStream()
-#define ERROR_INFER_STATUS(status, type, msg) \
-  MSI_LOG_ERROR << msg;                       \
-  status = mindspore::serving::Status(type, msg)
 
 #define INFER_STATUS_LOG_ERROR(code) mindspore::serving::Status(code) = MSILOG_NOIF(ERROR)
 #define INFER_STATUS_LOG_WARNING(code) mindspore::serving::Status(code) = MSILOG_NOIF(WARNING)
diff --git a/mindspore_serving/ccsrc/common/tensor_base.cc b/mindspore_serving/ccsrc/common/tensor_base.cc
index 5b44c21..32994bf 100644
--- a/mindspore_serving/ccsrc/common/tensor_base.cc
+++ b/mindspore_serving/ccsrc/common/tensor_base.cc
@@ -68,7 +68,7 @@ size_t TensorBase::GetTypeSize(DataType type) {
   return 0;
 }
 
-void TensorBase::assgin(const TensorBase &other) {
+void TensorBase::assign(const TensorBase &other) {
   if (is_bytes_val_data()) {
     clear_bytes_data();
   }
diff --git a/mindspore_serving/ccsrc/common/tensor_base.h b/mindspore_serving/ccsrc/common/tensor_base.h
index 29688fb..4dbf6f4 100644
--- a/mindspore_serving/ccsrc/common/tensor_base.h
+++ b/mindspore_serving/ccsrc/common/tensor_base.h
@@ -51,7 +51,7 @@ enum DataType {
 class TensorBase;
 using TensorBasePtr = std::shared_ptr<TensorBase>;
 
-class MS_API TensorBase {
+class MS_API TensorBase : public std::enable_shared_from_this<TensorBase> {
  public:
   TensorBase() = default;
   virtual ~TensorBase() = default;
@@ -84,7 +84,7 @@ class MS_API TensorBase {
 
   // TensorBase(const TensorBase& other) = delete;
   // TensorBase& operator=(const TensorBase& other) = delete;
-  void assgin(const TensorBase &other);
+  void assign(const TensorBase &other);
   Status concat(const std::vector<TensorBasePtr> &inputs);
   bool is_bytes_val_data() const { return data_type() == kMSI_Bytes || data_type() == kMSI_String; }
 };
diff --git a/mindspore_serving/ccsrc/master/restful/http_handle.cc b/mindspore_serving/ccsrc/master/restful/http_handle.cc
index 1a92a61..0a5d983 100644
--- a/mindspore_serving/ccsrc/master/restful/http_handle.cc
+++ b/mindspore_serving/ccsrc/master/restful/http_handle.cc
@@ -120,18 +120,16 @@ size_t GetB64OriginSize(size_t target_len, size_t tail_size) {
 
 size_t GetTailEqualSize(const std::string &str) {
   size_t length = str.size();
-  if (length == 0 || length % 4 != 0) {
+  if (length % 4 != 0) {
     return UINT32_MAX;
   }
   size_t count = 0;
-  if (str.at(str.size() - 1) == '=') {
+  if (length >= 1 && str[length - 1] == '=') {
     count++;
   }
-
-  if (str.at(str.size() - 2) == '=') {
+  if (length >= 2 && str[length - 2] == '=') {
     count++;
   }
-
   return count;
 }
 
diff --git a/mindspore_serving/ccsrc/master/restful/http_process.cc b/mindspore_serving/ccsrc/master/restful/http_process.cc
index 053157b..bb25ac1 100644
--- a/mindspore_serving/ccsrc/master/restful/http_process.cc
+++ b/mindspore_serving/ccsrc/master/restful/http_process.cc
@@ -148,8 +148,9 @@ bool RestfulService::JsonMatchDataType(const json &js, DataType type) {
       flag = true;
     }
   } else if (js.is_string()) {
-    // string value can express all kinds type
-    flag = true;
+    if (type == kMSI_String) {
+      flag = true;
+    }
   } else if (js.is_boolean()) {
     if (type == kMSI_Bool) {
       flag = true;
@@ -162,12 +163,9 @@ bool RestfulService::JsonMatchDataType(const json &js, DataType type) {
 std::vector<int64_t> RestfulService::GetObjShape(const json &js) {
   std::vector<int64_t> shape;
   auto it = js.find(kShape);
-  if (it == js.end()) {
-    shape.push_back(1);
-  } else {
+  if (it != js.end()) {
     shape = GetSpecifiedShape(it.value());
   }
-
   return shape;
 }
 
@@ -330,17 +328,24 @@ Status RestfulService::CheckObj(const json &js) {
       if (!value.is_array()) {
         return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "json object, key is 'shape', value should be array type";
       }
-      if (value.empty()) {
-        return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "json object, key is 'shape', array value should no be empty";
-      }
+      bool zero_dims_before = false;
       for (auto it = value.begin(); it != value.end(); ++it) {
-        if (!(it->is_number())) {
-          return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "json object, key is 'shape', array value should be number";
+        if (zero_dims_before) {
+          return INFER_STATUS_LOG_ERROR(INVALID_INPUTS)
+                 << "json object, key is 'shape', invalid shape value " << value.dump();
+        }
+        if (!(it->is_number_unsigned())) {
+          return INFER_STATUS_LOG_ERROR(INVALID_INPUTS)
+                 << "json object, key is 'shape', array value should be unsigned integer";
         }
         auto number = it->get<int32_t>();
-        if (number <= 0) {
+        if (number < 0) {
           return INFER_STATUS_LOG_ERROR(INVALID_INPUTS)
-                 << "json object, key is 'shape', number value should be positive number";
+                 << "json object, key is 'shape', number value should not be negative number, shape value: "
+                 << value.dump();
+        }
+        if (number == 0) {
+          zero_dims_before = true;
         }
       }
       shape_count++;
@@ -365,28 +370,29 @@ Status RestfulService::CheckObj(const json &js) {
 // 1. parse request common func
 Status RestfulService::ParseItem(const json &value, ProtoTensor *const pb_tensor) {
   Status status(SUCCESS);
+  std::vector<int64_t> scalar_shape = {};
   if (value.is_number_integer()) {
     DataType type = kMSI_Int32;
     pb_tensor->set_data_type(type);
-    pb_tensor->set_shape({1});
+    pb_tensor->set_shape(scalar_shape);
     pb_tensor->resize_data(pb_tensor->GetTypeSize(type));
     status = GetScalarByType(type, value, 0, pb_tensor);
   } else if (value.is_number_float()) {
     DataType type = kMSI_Float32;
     pb_tensor->set_data_type(type);
-    pb_tensor->set_shape({1});
+    pb_tensor->set_shape(scalar_shape);
     pb_tensor->resize_data(pb_tensor->GetTypeSize(type));
     status = GetScalarByType(type, value, 0, pb_tensor);
   } else if (value.is_boolean()) {
     DataType type = kMSI_Bool;
     pb_tensor->set_data_type(type);
-    pb_tensor->set_shape({1});
+    pb_tensor->set_shape(scalar_shape);
     pb_tensor->resize_data(pb_tensor->GetTypeSize(type));
     status = GetScalarByType(type, value, 0, pb_tensor);
   } else if (value.is_string()) {
     DataType type = kMSI_String;
     pb_tensor->set_data_type(type);
-    pb_tensor->set_shape({1});
+    pb_tensor->set_shape(scalar_shape);
     status = GetScalarByType(type, value, 0, pb_tensor);
   } else if (value.is_object()) {
     status = CheckObj(value);
@@ -400,10 +406,6 @@ Status RestfulService::ParseItem(const json &value, ProtoTensor *const pb_tensor
     }
 
     std::vector<int64_t> shape = GetObjShape(value);
-    if (shape.empty()) {
-      return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "object json, shape is empty";
-    }
-
     bool is_tensor = false;
     if (type != kMSI_String && type != kMSI_Bytes) {
       is_tensor = true;
@@ -437,7 +439,7 @@ Status RestfulService::ParseItem(const json &value, ProtoTensor *const pb_tensor
       is_tensor = true;
     }
 
-    // intances mode:only support one item
+    // instances mode:only support one item
     if (request_type_ == kInstanceType) {
       if (!is_tensor) {
         size_t elements_nums = std::accumulate(shape.begin(), shape.end(), 1LL, std::multiplies<size_t>());
@@ -481,15 +483,15 @@ Status RestfulService::RecursiveGetArray(const json &json_data, size_t depth, si
   std::vector<int64_t> required_shape = request_tensor->shape();
   if (depth >= required_shape.size()) {
     return INFER_STATUS_LOG_ERROR(INVALID_INPUTS)
-           << "current depth:" << depth << " is more than shape dims:" << required_shape.size();
+           << "invalid json array: current depth " << depth << " is more than shape dims " << required_shape.size();
   }
   if (!json_data.is_array()) {
-    return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "json type is not array";
+    return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "invalid json array: json type is not array";
   }
   if (json_data.size() != static_cast<size_t>(required_shape[depth])) {
     return INFER_STATUS_LOG_ERROR(INVALID_INPUTS)
-           << "json size is:" << json_data.size() << "; the " << depth << " dim need"
-           << " shape size:" << required_shape[depth];
+           << "invalid json array: json size is " << json_data.size() << ", the dim " << depth << " expected to be "
+           << required_shape[depth];
   }
   if (depth + 1 < required_shape.size()) {
     size_t sub_element_cnt =
@@ -618,9 +620,7 @@ Status RestfulService::GetScalarData(const json &js, size_t index, bool is_bytes
 
     auto value = js.get<std::string>();
     if (is_bytes) {
-      if (value.empty()) {
-        return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "string value is empty";
-      }
+      DataType real_type = request_tensor->data_type();
       auto tail_equal_size = GetTailEqualSize(value);
       if (tail_equal_size == UINT32_MAX) {
         return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "'" << value << "' is illegal b64 encode string";
@@ -631,7 +631,6 @@ Status RestfulService::GetScalarData(const json &js, size_t index, bool is_bytes
       if (target_size != origin_size) {
         return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "decode base64 failed, size is not matched.";
       }
-      DataType real_type = request_tensor->data_type();
       if (real_type == kMSI_Bytes || real_type == kMSI_String) {
         request_tensor->add_bytes_data(buffer.data(), origin_size);
       } else {
@@ -643,9 +642,10 @@ Status RestfulService::GetScalarData(const json &js, size_t index, bool is_bytes
                  << "; Given info: type:" << GetStringByDataType(real_type) << "; type size:" << type_size
                  << "; element nums:" << element_cnt;
         }
-
-        auto data = reinterpret_cast<T *>(request_tensor->mutable_data()) + index;
-        memcpy_s(data, origin_size, buffer.data(), buffer.size());
+        if (origin_size > 0) {
+          auto data = reinterpret_cast<T *>(request_tensor->mutable_data()) + index;
+          memcpy_s(data, origin_size, buffer.data(), buffer.size());
+        }
       }
     } else {
       request_tensor->add_bytes_data(reinterpret_cast<uint8_t *>(value.data()), value.length());
@@ -680,7 +680,7 @@ Status RestfulService::RunRestful(const std::shared_ptr<RestfulRequest> &restful
   MSI_TIME_STAMP_END(ParseRequest)
   if (status != SUCCESS) {
     std::string error_msg = status.StatusMessage();
-    std::string msg = "Parser reqeust failed, " + error_msg;
+    std::string msg = "Parser request failed, " + error_msg;
     status = msg;
     return status;
   }
@@ -730,7 +730,7 @@ Status RestfulService::ParseRequest(const std::shared_ptr<RestfulRequest> &restf
       status = ParseInstancesMsg(js_msg, request);
       break;
     default:
-      return INFER_STATUS_LOG_ERROR(FAILED) << "restful reqeust only support instances mode";
+      return INFER_STATUS_LOG_ERROR(FAILED) << "restful request only support instances mode";
   }
 
   return status;
@@ -741,8 +741,7 @@ Status RestfulService::ParseReqCommonMsg(const std::shared_ptr<RestfulRequest> &
   Status status(SUCCESS);
   auto request_ptr = restful_request->decompose_event_request();
   if (request_ptr == nullptr) {
-    ERROR_INFER_STATUS(status, INVALID_INPUTS, "Decompose event request is nullptr");
-    return status;
+    return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "Decompose event request is nullptr";
   }
   request->mutable_servable_spec()->set_name(request_ptr->model_name_);
   request->mutable_servable_spec()->set_version_number(request_ptr->version_);
@@ -755,8 +754,7 @@ Status RestfulService::ParseInstancesMsg(const json &js_msg, PredictRequest *con
   auto type = GetReqTypeStr(request_type_);
   auto instances = js_msg.find(type);
   if (instances == js_msg.end()) {
-    ERROR_INFER_STATUS(status, FAILED, "instances request json should have instances key word");
-    return status;
+    return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "instances request json should have instances key word";
   }
 
   // get instances way:{key, value} or {value}
@@ -845,9 +843,7 @@ Status RestfulService::ParseReplyDetail(const proto::Tensor &tensor, json *const
   Status status(SUCCESS);
   const ProtoTensor pb_tensor(const_cast<proto::Tensor *>(&tensor));
   auto shape = pb_tensor.shape();
-  size_t shape_size = std::accumulate(shape.begin(), shape.end(), 1LL, std::multiplies<size_t>());
-
-  if (shape_size == 1) {
+  if (shape.empty()) {
     status = ParseScalar(pb_tensor, 0, js);
     if (status != SUCCESS) {
       return status;
@@ -900,7 +896,7 @@ Status RestfulService::ParseScalar(const ProtoTensor &pb_tensor, size_t index, j
       status = ParseScalarData<uint64_t>(pb_tensor, false, index, js);
       break;
     case kMSI_Float16:
-      ERROR_INFER_STATUS(status, FAILED, "fp16 reply is not supported");
+      status = INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "fp16 reply is not supported";
       break;
     case kMSI_Float32:
       status = ParseScalarData<float>(pb_tensor, false, index, js);
@@ -915,7 +911,7 @@ Status RestfulService::ParseScalar(const ProtoTensor &pb_tensor, size_t index, j
       status = ParseScalarData<std::string>(pb_tensor, true, index, js);
       break;
     default:
-      ERROR_INFER_STATUS(status, FAILED, "reply data type is not supported");
+      status = INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "reply data type is not supported";
       break;
   }
   return status;
@@ -981,10 +977,15 @@ Status RestfulService::RecursiveParseArray(const ProtoTensor &pb_tensor, size_t
                                            json *const out_json) {
   Status status(SUCCESS);
   std::vector<int64_t> required_shape = pb_tensor.shape();
-  if (depth >= 10) {
-    return INFER_STATUS_LOG_ERROR(FAILED) << "result shape dims is larger than 10";
+  if (depth >= required_shape.size()) {
+    return INFER_STATUS_LOG_ERROR(FAILED)
+           << "result shape dims is larger than result shape size " << required_shape.size();
   }
   if (depth == required_shape.size() - 1) {
+    if (required_shape[depth] == 0) {  // make empty array
+      out_json->push_back(json());
+      out_json->clear();
+    }
     for (int i = 0; i < required_shape[depth]; i++) {
       out_json->push_back(json());
       json &scalar_json = out_json->back();
diff --git a/mindspore_serving/ccsrc/master/restful/restful_request.cc b/mindspore_serving/ccsrc/master/restful/restful_request.cc
index 2a80c48..14b4c58 100644
--- a/mindspore_serving/ccsrc/master/restful/restful_request.cc
+++ b/mindspore_serving/ccsrc/master/restful/restful_request.cc
@@ -21,10 +21,12 @@
 #include <algorithm>
 #include <utility>
 
-static const char UrlKeyModel[] = "model";
-static const char UrlKeyVersion[] = "version";
-static const char UrlSplit[] = "/";
-static const char UrlKeyEnd[] = ":";
+namespace {
+const char kUrlKeyModel[] = "model";
+const char kUrlKeyVersion[] = "version";
+const char kUrlSplit[] = "/";
+const char kUrlKeyEnd[] = ":";
+}  // namespace
 
 namespace mindspore {
 namespace serving {
@@ -40,8 +42,8 @@ DecomposeEvRequest::~DecomposeEvRequest() {
 
 std::string DecomposeEvRequest::UrlQuery(const std::string &url, const std::string &key) {
   std::string::size_type start_pos(0);
-  if (key == UrlKeyEnd) {
-    if ((start_pos = url_.find(UrlKeyEnd)) != std::string::npos) {
+  if (key == kUrlKeyEnd) {
+    if ((start_pos = url_.find(kUrlKeyEnd)) != std::string::npos) {
       return url_.substr(start_pos + 1, url_.size());
     }
   }
@@ -49,10 +51,11 @@ std::string DecomposeEvRequest::UrlQuery(const std::string &url, const std::stri
   int key_size = key.size() + 1;
   std::string::size_type end_pos(0);
   if ((start_pos = url.find(key)) != std::string::npos) {
-    end_pos = std::min(url.find(UrlSplit, start_pos + key_size), url.find(UrlKeyEnd, start_pos + key_size));
-    if (end_pos != std::string::npos) {
-      return url.substr(start_pos + key_size, end_pos - start_pos - key_size);
+    end_pos = std::min(url.find(kUrlSplit, start_pos + key_size), url.find(kUrlKeyEnd, start_pos + key_size));
+    if (end_pos == std::string::npos) {
+      return url.substr(start_pos + key_size);
     }
+    return url.substr(start_pos + key_size, end_pos - start_pos - key_size);
   }
   return "";
 }
@@ -62,21 +65,17 @@ Status DecomposeEvRequest::GetPostMessageToJson() {
   std::string message;
   size_t input_size = evbuffer_get_length(event_request_->input_buffer);
   if (input_size == 0) {
-    ERROR_INFER_STATUS(status, INVALID_INPUTS, "http message invalid");
-    return status;
+    return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "http message invalid";
   } else if (input_size > max_msg_size_) {
-    ERROR_INFER_STATUS(status, INVALID_INPUTS, "http message is bigger than " + std::to_string(max_msg_size_));
-    return status;
+    return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "http message is bigger than " << max_msg_size_;
   } else {
     message.resize(input_size);
     auto src_data = evbuffer_pullup(event_request_->input_buffer, -1);
     if (src_data == nullptr) {
-      ERROR_INFER_STATUS(status, FAILED, "get http message failed.");
-      return status;
+      return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "get http message failed.";
     }
     if (memcpy_s(message.data(), input_size, src_data, input_size) != EOK) {
-      ERROR_INFER_STATUS(status, FAILED, "copy http message failed.");
-      return status;
+      return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "copy http message failed.";
     }
   }
   MSI_TIME_STAMP_START(ParseJson)
@@ -84,9 +83,7 @@ Status DecomposeEvRequest::GetPostMessageToJson() {
     request_message_ = nlohmann::json::parse(message);
   } catch (nlohmann::json::exception &e) {
     std::string json_exception = e.what();
-    std::string error_message = "Illegal JSON format." + json_exception;
-    ERROR_INFER_STATUS(status, INVALID_INPUTS, error_message);
-    return status;
+    return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "Illegal JSON format." + json_exception;
   }
   MSI_TIME_STAMP_END(ParseJson)
 
@@ -100,8 +97,7 @@ Status DecomposeEvRequest::CheckRequestMethodValid() {
       request_method_ = "POST";
       return status;
     default:
-      ERROR_INFER_STATUS(status, INVALID_INPUTS, "http message only support POST right now");
-      return status;
+      return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "http message only support POST right now";
   }
 }
 
@@ -120,35 +116,37 @@ Status DecomposeEvRequest::Decompose() {
   // eg: /model/resnet/version/1:predict
   url_ = evhttp_request_get_uri(event_request_);
   if (url_.empty()) {
-    ERROR_INFER_STATUS(status, INVALID_INPUTS, "evhttp url is empty.");
-    return status;
+    return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "evhttp url is empty.";
   }
   MSI_LOG_INFO << "url_: " << url_;
 
-  model_name_ = UrlQuery(url_, UrlKeyModel);
+  model_name_ = UrlQuery(url_, kUrlKeyModel);
   if (model_name_.empty()) {
-    ERROR_INFER_STATUS(status, INVALID_INPUTS, "please check url, the keyword:[model] must contain.");
-    return status;
+    return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "please check url, the keyword:[model] must contain.";
   }
   MSI_LOG_INFO << "model_name_: " << model_name_;
-  if (url_.find(UrlKeyVersion) != std::string::npos) {
-    auto version_str = UrlQuery(url_, UrlKeyVersion);
+  if (url_.find(kUrlKeyVersion) != std::string::npos) {
+    auto version_str = UrlQuery(url_, kUrlKeyVersion);
     try {
-      version_ = std::stol(version_str);
+      auto version = std::stol(version_str);
+      if (version < 0 || version >= UINT32_MAX) {
+        return INFER_STATUS_LOG_ERROR(INVALID_INPUTS)
+               << "please check url, version number range failed, request version number " << version_str;
+      }
+      version_ = static_cast<uint32_t>(version);
     } catch (const std::invalid_argument &) {
-      ERROR_INFER_STATUS(status, INVALID_INPUTS, "please check url, the keyword:[version] must contain.");
-      return status;
+      return INFER_STATUS_LOG_ERROR(INVALID_INPUTS)
+             << "please check url, the keyword:[version] value invalid, request version number " << version_str;
     } catch (const std::out_of_range &) {
-      ERROR_INFER_STATUS(status, INVALID_INPUTS, "please check url, the keyword:[version] out of range.");
-      return status;
+      return INFER_STATUS_LOG_ERROR(INVALID_INPUTS)
+             << "please check url, version number range failed, request version number " << version_str;
     }
     MSI_LOG_INFO << "version_: " << version_;
   }
 
-  service_method_ = UrlQuery(url_, UrlKeyEnd);
+  service_method_ = UrlQuery(url_, kUrlKeyEnd);
   if (service_method_.empty()) {
-    ERROR_INFER_STATUS(status, INVALID_INPUTS, "please check url, the keyword:[service method] must contain.");
-    return status;
+    return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "please check url, the keyword:[service method] must contain.";
   }
   MSI_LOG_INFO << "service_method_: " << service_method_;
   return status;
@@ -164,37 +162,31 @@ RestfulRequest::~RestfulRequest() {
 }
 
 Status RestfulRequest::RestfulReplayBufferInit() {
-  Status status(SUCCESS);
   replay_buffer_ = evbuffer_new();
   if (replay_buffer_ == nullptr) {
-    ERROR_INFER_STATUS(status, INVALID_INPUTS, "creat restful replay buffer fail");
-    return status;
+    return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "create restful replay buffer fail";
   }
-  return status;
+  return SUCCESS;
 }
 
 Status RestfulRequest::RestfulReplay(const std::string &replay) {
-  Status status(SUCCESS);
   if (replay_buffer_ == nullptr) {
-    ERROR_INFER_STATUS(status, INVALID_INPUTS, "replay_buffer_ is nullptr");
-    return status;
+    return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "replay_buffer_ is nullptr";
   }
   if (decompose_event_request_ == nullptr) {
-    ERROR_INFER_STATUS(status, INVALID_INPUTS, "replay_buffer_ is nullptr");
-    return status;
+    return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "replay_buffer_ is nullptr";
   }
   if (decompose_event_request_->event_request_ == nullptr) {
-    ERROR_INFER_STATUS(status, INVALID_INPUTS, "replay_buffer_ is nullptr");
-    return status;
+    return INFER_STATUS_LOG_ERROR(INVALID_INPUTS) << "replay_buffer_ is nullptr";
   }
   evbuffer_add(replay_buffer_, replay.data(), replay.size());
   evhttp_send_reply(decompose_event_request_->event_request_, HTTP_OK, "Client", replay_buffer_);
-  return status;
+  return SUCCESS;
 }
 
 Status RestfulRequest::ErrorMessage(Status status) {
   Status error_status(SUCCESS);
-  nlohmann::json error_json = {{"error_message", status.StatusMessage()}};
+  nlohmann::json error_json = {{"error_msg", status.StatusMessage()}};
   std::string out_error_str = error_json.dump();
   if ((error_status = RestfulReplay(out_error_str)) != SUCCESS) {
     return error_status;
diff --git a/mindspore_serving/ccsrc/master/restful/restful_server.cc b/mindspore_serving/ccsrc/master/restful/restful_server.cc
index 7a21990..fd9c91d 100644
--- a/mindspore_serving/ccsrc/master/restful/restful_server.cc
+++ b/mindspore_serving/ccsrc/master/restful/restful_server.cc
@@ -46,16 +46,8 @@ void RestfulServer::DispatchEvHttpRequest(evhttp_request *request) {
   Status status(SUCCESS);
 
   auto de_request = std::make_unique<DecomposeEvRequest>(request, max_msg_size_);
-  if (de_request == nullptr) {
-    ERROR_INFER_STATUS(status, INVALID_INPUTS, "de_request is nullptr.");
-    return;
-  }
   Status de_status = de_request->Decompose();
   auto restful_request = std::make_shared<RestfulRequest>(std::move(de_request));
-  if (restful_request == nullptr) {
-    ERROR_INFER_STATUS(status, INVALID_INPUTS, "restful_request is nullptr.");
-    return;
-  }
   status = restful_request->RestfulReplayBufferInit();
   if (status != SUCCESS) {
     if ((status = restful_request->ErrorMessage(status)) != SUCCESS) {
@@ -129,7 +121,7 @@ Status RestfulServer::StartRestfulServer() {
 
   if (listener == nullptr) {
     status = INFER_STATUS_LOG_ERROR(SYSTEM_ERROR)
-             << "Serving Error: RESTful server start failed, create http listener faild, port " << restful_port_;
+             << "Serving Error: RESTful server start failed, create http listener failed, port " << restful_port_;
     free_event_base();
     free_evhttp();
     return status;
@@ -137,7 +129,7 @@ Status RestfulServer::StartRestfulServer() {
   auto bound = evhttp_bind_listener(event_http_, listener);
   if (bound == nullptr) {
     status = INFER_STATUS_LOG_ERROR(SYSTEM_ERROR)
-             << "Serving Error: RESTful server start failed, bind http listener to server faild, port "
+             << "Serving Error: RESTful server start failed, bind http listener to server failed, port "
              << restful_port_;
     evconnlistener_free(listener);
     free_event_base();
diff --git a/mindspore_serving/ccsrc/python/serving_py.cc b/mindspore_serving/ccsrc/python/serving_py.cc
index a691d26..7de691c 100644
--- a/mindspore_serving/ccsrc/python/serving_py.cc
+++ b/mindspore_serving/ccsrc/python/serving_py.cc
@@ -27,6 +27,9 @@
 namespace mindspore::serving {
 
 PYBIND11_MODULE(_mindspore_serving, m) {
+  // avoid as numpy object memory copy in PyTensor::AsPythonData
+  py::class_<TensorBase, TensorBasePtr>(m, "Tensor_");
+
   py::class_<PyPreprocessStorage, std::shared_ptr<PyPreprocessStorage>>(m, "PreprocessStorage_")
     .def(py::init<>())
     .def_static("get_instance", &PyPreprocessStorage::Instance)
diff --git a/mindspore_serving/ccsrc/python/tensor_py.cc b/mindspore_serving/ccsrc/python/tensor_py.cc
index 49f5c11..64a4131 100644
--- a/mindspore_serving/ccsrc/python/tensor_py.cc
+++ b/mindspore_serving/ccsrc/python/tensor_py.cc
@@ -196,7 +196,7 @@ py::object PyTensor::AsPythonData(TensorBasePtr tensor, bool copy) {
     py::buffer_info info(reinterpret_cast<void *>(const_cast<uint8_t *>(data)), sizeof(uint8_t),
                          py::format_descriptor<uint8_t>::format(), 1, shape, strides);
     if (!copy) {
-      py::array self;
+      py::object self = py::cast(tensor.get());
       return py::array(py::dtype(info), info.shape, info.strides, info.ptr, self);
     } else {
       return py::array(py::dtype(info), info.shape, info.strides, info.ptr);
@@ -210,7 +210,7 @@ py::object PyTensor::AsPythonData(TensorBasePtr tensor, bool copy) {
                          static_cast<ssize_t>(tensor_shape.size()), shape, strides);
 
     if (!copy) {
-      py::array self;
+      py::object self = py::cast(tensor.get());
       return py::array(py::dtype(info), info.shape, info.strides, info.ptr, self);
     } else {
       return py::array(py::dtype(info), info.shape, info.strides, info.ptr);
@@ -221,7 +221,7 @@ py::object PyTensor::AsPythonData(TensorBasePtr tensor, bool copy) {
 py::tuple PyTensor::AsNumpyTuple(const InstanceData &instance_data) {
   py::tuple numpy_inputs_tuple(instance_data.size());
   for (size_t i = 0; i < instance_data.size(); i++) {  // inputs
-    numpy_inputs_tuple[i] = PyTensor::AsPythonData(instance_data[i]);
+    numpy_inputs_tuple[i] = PyTensor::AsPythonData(instance_data[i], false);
   }
   return numpy_inputs_tuple;
 }
diff --git a/mindspore_serving/client/python/client.py b/mindspore_serving/client/python/client.py
index d6042a0..821fcca 100644
--- a/mindspore_serving/client/python/client.py
+++ b/mindspore_serving/client/python/client.py
@@ -126,17 +126,17 @@ def _check_str(arg_name, str_val):
         raise RuntimeError(f"Parameter '{arg_name}' should not be empty str")
 
 
-def _check_int(arg_name, int_val, mininum=None, maximum=None):
+def _check_int(arg_name, int_val, minimum=None, maximum=None):
     """Check whether the input parameters are reasonable int input"""
     if not isinstance(int_val, int):
         raise RuntimeError(f"Parameter '{arg_name}' should be int, but actually {type(int_val)}")
-    if mininum is not None and int_val < mininum:
+    if minimum is not None and int_val < minimum:
         if maximum is not None:
-            raise RuntimeError(f"Parameter '{arg_name}' should be in range [{mininum},{maximum}]")
-        raise RuntimeError(f"Parameter '{arg_name}' should be >= {mininum}")
+            raise RuntimeError(f"Parameter '{arg_name}' should be in range [{minimum},{maximum}]")
+        raise RuntimeError(f"Parameter '{arg_name}' should be >= {minimum}")
     if maximum is not None and int_val > maximum:
-        if mininum is not None:
-            raise RuntimeError(f"Parameter '{arg_name}' should be in range [{mininum},{maximum}]")
+        if minimum is not None:
+            raise RuntimeError(f"Parameter '{arg_name}' should be in range [{minimum},{maximum}]")
         raise RuntimeError(f"Parameter '{arg_name}' should be <= {maximum}")
 
 
@@ -259,29 +259,6 @@ class Client:
             print(status_code.value)
             return ClientGrpcAsyncError({"error": "Grpc Error, " + str(status_code.value)})
 
-    def close(self):
-        """
-        Used to release gRPC connection avoiding influence on the connection to the next restarted Serving server.
-
-        Examples:
-            >>> from mindspore_serving.client import Client
-            >>> import numpy as np
-            >>> instance = {"x1": np.ones((2, 2), np.int32), "x2": np.ones((2, 2), np.int32)}
-            >>> client = Client("localhost", 5500, "add", "add_cast")
-            >>> result = client.infer(instance)
-            >>> client.close()
-            >>> print(result)
-        """
-        if self.stub:
-            del self.stub
-            self.stub = None
-
-    def __enter__(self):
-        return self
-
-    def __exit__(self, exc_type, exc_val, exc_tb):
-        self.close()
-
     def _create_request(self, instances):
         """Used to create request spec."""
         if not isinstance(instances, (tuple, list)):
@@ -342,7 +319,7 @@ class Client:
 
 class ClientGrpcAsyncResult:
     """
-    When Client.infer_async invoke sucessfully, a ClientGrpcAsyncResult object is returned.
+    When Client.infer_async invoke successfully, a ClientGrpcAsyncResult object is returned.
 
     Examples:
         >>> from mindspore_serving.client import Client
diff --git a/mindspore_serving/log.py b/mindspore_serving/log.py
index 6b36b6c..33bfe83 100644
--- a/mindspore_serving/log.py
+++ b/mindspore_serving/log.py
@@ -91,7 +91,7 @@ class _MultiCompatibleRotatingFileHandler(RotatingFileHandler):
             self.stream.close()
             self.stream = None
 
-        # Attain an exclusive lock with bloking mode by `fcntl` module.
+        # Attain an exclusive lock with blocking mode by `fcntl` module.
         with open(self.baseFilename, 'a') as file_pointer:
             if platform.system() != "Windows":
                 fcntl.lockf(file_pointer.fileno(), fcntl.LOCK_EX)
@@ -396,7 +396,7 @@ def _clear_handler(logger):
         logger.removeHandler(handler)
 
 
-def _find_caller(stack_info=False):
+def _find_caller(stack_info=False, _=1):
     """
     Find the stack frame of the caller.
 
@@ -432,13 +432,13 @@ def _find_caller(stack_info=False):
 
 def _get_stack_info(frame):
     """
-    Get the stack informations.
+    Get the stack information.
 
     Args:
-        frame(frame): the frame requiring informations.
+        frame(frame): the frame requiring information.
 
     Returns:
-        str, the string of the stack informations.
+        str, the string of the stack information.
     """
     sinfo = None
     stack_prefix = 'Stack (most recent call last):\n'
diff --git a/mindspore_serving/master/__init__.py b/mindspore_serving/master/__init__.py
index 6e2c4af..618f4c3 100644
--- a/mindspore_serving/master/__init__.py
+++ b/mindspore_serving/master/__init__.py
@@ -14,7 +14,6 @@
 # ============================================================================
 """MindSpore Serving Master"""
 
-from mindspore_serving.worker import _check_version
 from ._master import start_grpc_server, start_restful_server, start_master_server, stop
 
 __all__ = []
diff --git a/requirements_test.txt b/requirements_test.txt
index 7c2172c..876298a 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -1,2 +1,4 @@
 numpy>=1.17.0
 protobuf>=3.8.0
+grpcio>=1.27.3
+requests>=2.22.0
\ No newline at end of file
diff --git a/tests/ut/CMakeLists.txt b/tests/ut/CMakeLists.txt
index cc944f9..a4d4611 100644
--- a/tests/ut/CMakeLists.txt
+++ b/tests/ut/CMakeLists.txt
@@ -3,11 +3,7 @@ add_library(protobuf::libprotobuf ALIAS protobuf::protobuf)
 add_executable(protobuf::libprotoc ALIAS protobuf::protoc)
 
 set(_PROTOBUF_LIBPROTOBUF protobuf::libprotobuf)
-if(CMAKE_CROSSCOMPILING)
-    find_program(_PROTOBUF_PROTOC protoc)
-else()
-    set(_PROTOBUF_PROTOC $<TARGET_FILE:protobuf::protoc>)
-endif()
+set(_PROTOBUF_PROTOC $<TARGET_FILE:protobuf::protoc>)
 
 # Find gRPC installation
 # Looks for gRPCConfig.cmake file installed by gRPC's cmake installation.
@@ -24,13 +20,8 @@ message(STATUS "Using gRPC ${gRPC_VERSION}")
 set(_GRPC_GRPCPP gRPC::grpc++)
 set(_REFLECTION gRPC::grpc++_reflection)
 
-if(CMAKE_CROSSCOMPILING)
-    find_program(_GRPC_CPP_PLUGIN_EXECUTABLE grpc_cpp_plugin)
-    find_program(_GRPC_PYTHON_PLUGIN_EXECUTABLE grpc_python_plugin)
-else()
-    set(_GRPC_CPP_PLUGIN_EXECUTABLE $<TARGET_FILE:gRPC::grpc_cpp_plugin>)
-    set(_GRPC_PYTHON_PLUGIN_EXECUTABLE $<TARGET_FILE:gRPC::grpc_python_plugin>)
-endif()
+set(_GRPC_CPP_PLUGIN_EXECUTABLE $<TARGET_FILE:gRPC::grpc_cpp_plugin>)
+set(_GRPC_PYTHON_PLUGIN_EXECUTABLE $<TARGET_FILE:gRPC::grpc_python_plugin>)
 
 # Proto file
 # Generated sources
@@ -96,7 +87,7 @@ add_library(serving_ut_common STATIC ${UT_SERVING_COMMON})
 
 target_link_libraries(serving_ut_common PRIVATE ${_REFLECTION} ${_GRPC_GRPCPP} ${_PROTOBUF_LIBPROTOBUF})
 target_link_libraries(serving_ut_common PRIVATE mindspore_serving::event mindspore_serving::event_pthreads)
-target_link_libraries(serving_ut_common PRIVATE pthread mindspore::glog)
+target_link_libraries(serving_ut_common PRIVATE pthread mindspore_serving::glog)
 target_link_libraries(serving_ut_common PRIVATE ${SECUREC_LIBRARY})
 
 # copy libevent lib
diff --git a/tests/ut/cpp/runtest.sh b/tests/ut/cpp/runtest.sh
index 729c81d..687858b 100755
--- a/tests/ut/cpp/runtest.sh
+++ b/tests/ut/cpp/runtest.sh
@@ -14,9 +14,12 @@
 # limitations under the License.
 # ============================================================================
 set -e
-BASEPATH=$(cd "$(dirname "$0")"; pwd)
+BASEPATH=$(
+  cd "$(dirname "$0")"
+  pwd
+)
 PROJECT_PATH=${BASEPATH}/../../..
-if [ $BUILD_PATH ];then
+if [ $BUILD_PATH ]; then
   echo "BUILD_PATH = $BUILD_PATH"
 else
   BUILD_PATH=${PROJECT_PATH}/build
diff --git a/tests/ut/cpp/tests/parse_restful.cc b/tests/ut/cpp/tests/parse_restful.cc
index 1f8588a..e6f59e0 100644
--- a/tests/ut/cpp/tests/parse_restful.cc
+++ b/tests/ut/cpp/tests/parse_restful.cc
@@ -859,15 +859,26 @@ TEST_F(TestParseReply, test_reply_SUCCESS) {
         std::cout << "===start====" << std::endl;
         for (auto &it : element.items()) {
           if (it.key() == "key_int") {
-            ASSERT_EQ(it.value(), 1);
+            ASSERT_TRUE(it.value().is_array());
+            ASSERT_EQ(it.value().size(), 1);
+            auto array_items = it.value().items();
+            auto int_val = *(array_items.begin());
+            ASSERT_TRUE(int_val.value().is_number_integer());
+            ASSERT_EQ(int_val.value(), 1);
             count++;
           } else if (it.key() == "key_bool") {
+            ASSERT_TRUE(it.value().is_boolean());
             ASSERT_EQ(it.value(), false);
             count++;
           } else if (it.key() == "key_float") {
-            ASSERT_FLOAT_EQ(it.value(), 2.3);
+            ASSERT_TRUE(it.value().is_array());
+            ASSERT_EQ(it.value().size(), 1);
+            auto array_items = it.value().items();
+            auto float_val = *(array_items.begin());
+            ASSERT_FLOAT_EQ(float_val.value(), 2.3);
             count++;
           } else if (it.key() == "key_str") {
+            ASSERT_TRUE(it.value().is_string());
             ASSERT_EQ(it.value(), "ut_test");
             count++;
           } else if (it.key() == "key_bytes") {
diff --git a/tests/ut/python/runtest.sh b/tests/ut/python/runtest.sh
index 39b56c5..7e3a0f1 100755
--- a/tests/ut/python/runtest.sh
+++ b/tests/ut/python/runtest.sh
@@ -44,10 +44,12 @@ echo "LD_LIBRARY_PATH=LD_LIBRARY_PATH"
 unset http_proxy
 unset https_proxy
 
+cd -
+cd ${PROJECT_PATH}/tests/ut/python/tests/
 if [ $# -gt 0 ]; then
-  pytest -v ${PROJECT_PATH}/tests/ut/python/tests/ -k $1
+  pytest -v . -k "$1"
 else
-  pytest -v ${PROJECT_PATH}/tests/ut/python/tests
+  pytest -v .
 fi
 
 RET=$?
diff --git a/tests/ut/python/tests/common.py b/tests/ut/python/tests/common.py
index e5e73b8..670e6bd 100644
--- a/tests/ut/python/tests/common.py
+++ b/tests/ut/python/tests/common.py
@@ -79,5 +79,43 @@ def serving_test(func):
         finally:
             master.stop()
             worker.stop()
+            servable_dir = os.path.join(os.getcwd(), "serving_python_ut_servables")
+            rmtree(servable_dir, True)
 
     return wrap_test
+
+
+def release_client(client):
+    del client.stub
+    client.stub = None
+
+
+# test servable_config.py with client
+servable_config_import = r"""
+import numpy as np
+from mindspore_serving.worker import register
+"""
+
+servable_config_declare_servable = r"""
+register.declare_servable(servable_file="tensor_add.mindir", model_format="MindIR", with_batch_dim=False)
+"""
+
+servable_config_preprocess_cast = r"""
+def add_trans_datatype(x1, x2):
+    return x1.astype(np.float32), x2.astype(np.float32)
+"""
+
+servable_config_method_add_common = r"""
+@register.register_method(output_names=["y"])
+def add_common(x1, x2):  # only support float32 inputs
+    y = register.call_servable(x1, x2)
+    return y
+"""
+
+servable_config_method_add_cast = r"""
+@register.register_method(output_names=["y"])
+def add_cast(x1, x2):
+    x1, x2 = register.call_preprocess(add_trans_datatype, x1, x2)  # cast input to float32
+    y = register.call_servable(x1, x2)
+    return y
+"""
diff --git a/tests/ut/python/tests/common_restful.py b/tests/ut/python/tests/common_restful.py
new file mode 100644
index 0000000..9c16087
--- /dev/null
+++ b/tests/ut/python/tests/common_restful.py
@@ -0,0 +1,75 @@
+# Copyright 2020 Huawei Technologies Co., Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============================================================================
+"""test Serving, Common"""
+
+import json
+import requests
+import numpy as np
+
+
+def compare_float_value(expect, result):
+    expect = np.array(expect)
+    result = np.array(result)
+    assert (np.abs(expect - result) < 0.001).all()
+
+
+def create_multi_instances_fp32(instance_count):
+    instances = []
+    # instance 1
+    y_data_list = []
+    for i in range(instance_count):
+        x1 = np.asarray([[1.1, 2.2], [3.3, 4.4]]).astype(np.float32) * (i + 1)
+        x2 = np.asarray([[5.5, 6.6], [7.7, 8.8]]).astype(np.float32) * (i + 1)
+        y_data_list.append(x1 + x2)
+        instances.append({"x1": x1.tolist(), "x2": x2.tolist()})
+    return instances, y_data_list
+
+
+def create_multi_instances_int32_input_fp32_output(instance_count):
+    instances = []
+    # instance 1
+    y_data_list = []
+    for i in range(instance_count):
+        x1 = np.asarray([[1.1, 2.2], [3.3, 4.4]]).astype(np.int32) * (i + 1)
+        x2 = np.asarray([[5.5, 6.6], [7.7, 8.8]]).astype(np.int32) * (i + 1)
+        y_data_list.append((x1 + x2).astype(np.float32))
+        instances.append({"x1": x1.tolist(), "x2": x2.tolist()})
+    return instances, y_data_list
+
+
+def check_result(result, y_data_list, output_name="y"):
+    result = result["instances"]
+    assert len(result) == len(y_data_list)
+    for result_item, expected_item in zip(result, y_data_list):
+        result_item = np.array(result_item[output_name])
+        print("result", result_item)
+        print("expect:", expected_item)
+        assert result_item.shape == expected_item.shape
+        assert (np.abs(result_item - expected_item) < 0.001).all()
+
+
+def post_restful(ip, restful_port, servable_name, method_name, json_instances, version_number=None):
+    instances_map = {"instances": json_instances}
+    post_payload = json.dumps(instances_map)
+    print("request:", post_payload)
+    if version_number is not None:
+        request_url = f"http://{ip}:{restful_port}/model/{servable_name}/version/{version_number}:{method_name}"
+        result = requests.post(request_url, data=post_payload)
+    else:
+        request_url = f"http://{ip}:{restful_port}/model/{servable_name}:{method_name}"
+        result = requests.post(request_url, data=post_payload)
+    print("result", result.text)
+    result = json.loads(result.text)
+    return result
diff --git a/tests/ut/python/tests/test_mater_worker_client.py b/tests/ut/python/tests/test_mater_worker_client.py
index 3449b9b..07238db 100644
--- a/tests/ut/python/tests/test_mater_worker_client.py
+++ b/tests/ut/python/tests/test_mater_worker_client.py
@@ -18,7 +18,9 @@ import numpy as np
 from mindspore_serving import master
 from mindspore_serving import worker
 from mindspore_serving.client import Client
-from common import ServingTestBase, serving_test
+from common import ServingTestBase, serving_test, release_client
+from common import servable_config_import, servable_config_declare_servable, servable_config_preprocess_cast
+from common import servable_config_method_add_common, servable_config_method_add_cast
 
 
 def create_multi_instances_fp32(instance_count):
@@ -50,7 +52,7 @@ def test_master_worker_client_success():
     instance_count = 3
     instances, y_data_list = create_multi_instances_fp32(instance_count)
     result = client.infer(instances)
-    client.close()  # avoid affecting the next use case
+    release_client(client)
 
     print(result)
     check_result(result, y_data_list)
@@ -63,11 +65,12 @@ def test_master_worker_client_multi_times_success():
     worker.start_servable_in_master(base.servable_dir, base.servable_name, 0)
     master.start_grpc_server("0.0.0.0", 5500)
     # Client, use with avoid affecting the next use case
-    with Client("localhost", 5500, base.servable_name, "add_common") as client:
-        for instance_count in range(1, 5):
-            instances, y_data_list = create_multi_instances_fp32(instance_count)
-            result = client.infer(instances)
-            check_result(result, y_data_list)
+    client = Client("localhost", 5500, base.servable_name, "add_common")
+    for instance_count in range(1, 5):
+        instances, y_data_list = create_multi_instances_fp32(instance_count)
+        result = client.infer(instances)
+        check_result(result, y_data_list)
+    release_client(client)
 
 
 @serving_test
@@ -78,10 +81,11 @@ def test_master_worker_client_alone_success():
     master.start_grpc_server("0.0.0.0", 5500)
     worker.start_servable(base.servable_dir, base.servable_name, master_port=7600, worker_port=6600)
     # Client
-    with Client("localhost", 5500, base.servable_name, "add_common") as client:
-        instance_count = 3
-        instances, y_data_list = create_multi_instances_fp32(instance_count)
-        result = client.infer(instances)
+    client = Client("localhost", 5500, base.servable_name, "add_common")
+    instance_count = 3
+    instances, y_data_list = create_multi_instances_fp32(instance_count)
+    result = client.infer(instances)
+    release_client(client)
     check_result(result, y_data_list)
 
 
@@ -93,11 +97,12 @@ def test_master_worker_client_alone_multi_times_success():
     master.start_grpc_server("0.0.0.0", 5500)
     worker.start_servable(base.servable_dir, base.servable_name, master_port=7600, worker_port=6600)
     # Client, use with avoid affecting the next use case
-    with Client("localhost", 5500, base.servable_name, "add_common") as client:
-        for instance_count in range(1, 5):
-            instances, y_data_list = create_multi_instances_fp32(instance_count)
-            result = client.infer(instances)
-            check_result(result, y_data_list)
+    client = Client("localhost", 5500, base.servable_name, "add_common")
+    for instance_count in range(1, 5):
+        instances, y_data_list = create_multi_instances_fp32(instance_count)
+        result = client.infer(instances)
+        check_result(result, y_data_list)
+    release_client(client)
 
 
 @serving_test
@@ -112,7 +117,7 @@ def test_master_worker_client_async_success():
     instances, y_data_list = create_multi_instances_fp32(instance_count)
     result_future = client.infer_async(instances)
     result = result_future.result()
-    client.close()  # avoid affecting the next use case
+    release_client(client)  # avoid affecting the next use case
 
     print(result)
     check_result(result, y_data_list)
@@ -125,12 +130,13 @@ def test_master_worker_client_async_multi_times_success():
     worker.start_servable_in_master(base.servable_dir, base.servable_name, 0)
     master.start_grpc_server("0.0.0.0", 5500)
     # Client, use with avoid affecting the next use case
-    with Client("localhost", 5500, base.servable_name, "add_common") as client:
-        for instance_count in range(1, 5):
-            instances, y_data_list = create_multi_instances_fp32(instance_count)
-            result_future = client.infer_async(instances)
-            result = result_future.result()
-            check_result(result, y_data_list)
+    client = Client("localhost", 5500, base.servable_name, "add_common")
+    for instance_count in range(1, 5):
+        instances, y_data_list = create_multi_instances_fp32(instance_count)
+        result_future = client.infer_async(instances)
+        result = result_future.result()
+        check_result(result, y_data_list)
+    release_client(client)
 
 
 @serving_test
@@ -231,7 +237,7 @@ def test_master_worker_client_alone_repeat_grpc_and_restful_port_failed():
         master.start_restful_server("0.0.0.0", 7600)
         assert False
     except RuntimeError as e:
-        assert "Serving Error: RESTful server start failed, create http listener faild, port" in str(e)
+        assert "Serving Error: RESTful server start failed, create http listener failed, port" in str(e)
 
 
 @serving_test
@@ -246,37 +252,6 @@ def test_master_worker_client_alone_repeat_grpc_and_restful_port2_failed():
         assert "Serving Error: Serving gRPC server start failed, create server failed, address" in str(e)
 
 
-# test servable_config.py with client
-servable_config_import = r"""
-import numpy as np
-from mindspore_serving.worker import register
-"""
-
-servable_config_declare_servable = r"""
-register.declare_servable(servable_file="tensor_add.mindir", model_format="MindIR", with_batch_dim=False)
-"""
-
-servable_config_preprocess_cast = r"""
-def add_trans_datatype(x1, x2):
-    return x1.astype(np.float32), x2.astype(np.float32)
-"""
-
-servable_config_method_add_common = r"""
-@register.register_method(output_names=["y"])
-def add_common(x1, x2):  # only support float32 inputs
-    y = register.call_servable(x1, x2)
-    return y
-"""
-
-servable_config_method_add_cast = r"""
-@register.register_method(output_names=["y"])
-def add_cast(x1, x2):
-    x1, x2 = register.call_preprocess(add_trans_datatype, x1, x2)  # cast input to float32
-    y = register.call_servable(x1, x2)
-    return y
-"""
-
-
 @serving_test
 def test_master_worker_client_servable_content_success():
     base = ServingTestBase()
@@ -292,8 +267,9 @@ def test_master_worker_client_servable_content_success():
     # Client
     instance_count = 3
     instances, y_data_list = create_multi_instances_fp32(instance_count)
-    with Client("localhost", 5500, base.servable_name, "add_common") as client:
-        result = client.infer(instances)
+    client = Client("localhost", 5500, base.servable_name, "add_common")
+    result = client.infer(instances)
+    release_client(client)
 
     print(result)
     check_result(result, y_data_list)
@@ -320,9 +296,9 @@ def add_cast(x1, x2):
     # Client
     instance_count = 3
     instances, _ = create_multi_instances_fp32(instance_count)
-    # Client, use with avoid affecting the next use case
-    with Client("localhost", 5500, base.servable_name, "add_cast") as client:
-        result = client.infer(instances)
+    client = Client("localhost", 5500, base.servable_name, "add_cast")
+    result = client.infer(instances)
+    release_client(client)
 
     print(result)
     assert "Preprocess Failed" in str(result[0]["error"])
@@ -349,9 +325,9 @@ def add_cast(x1, x2):
     # Client
     instance_count = 3
     instances, _ = create_multi_instances_fp32(instance_count)
-    # Client, use with avoid affecting the next use case
-    with Client("localhost", 5500, base.servable_name, "add_cast") as client:
-        result = client.infer(instances)
+    client = Client("localhost", 5500, base.servable_name, "add_cast")
+    result = client.infer(instances)
+    release_client(client)
 
     print(result)
     assert "Postprocess Failed" in str(result[0]["error"])
@@ -387,9 +363,9 @@ def add_cast(x1, x2, label):
     for i, instance in enumerate(instances):
         instance["label"] = list_str[i]
 
-    # Client, use with avoid affecting the next use case
-    with Client("localhost", 5500, base.servable_name, "add_cast") as client:
-        result = client.infer(instances)
+    client = Client("localhost", 5500, base.servable_name, "add_cast")
+    result = client.infer(instances)
+    release_client(client)
     assert result[0]["text"] == "ABC123"
     assert result[1]["text"] == "DEF456"
     assert result[2]["text"] == "HIJ789"
@@ -426,9 +402,9 @@ def add_cast(x1, x2, label):
     for i, instance in enumerate(instances):
         instance["label"] = str.encode(list_str[i])
 
-    # Client, use with avoid affecting the next use case
-    with Client("localhost", 5500, base.servable_name, "add_cast") as client:
-        result = client.infer(instances)
+    client = Client("localhost", 5500, base.servable_name, "add_cast")
+    result = client.infer(instances)
+    release_client(client)
     assert bytes.decode(result[0]["text"]) == "ABC123"
     assert bytes.decode(result[1]["text"]) == "DEF456"
     assert bytes.decode(result[2]["text"]) == "HIJ789"
@@ -458,9 +434,9 @@ def add_cast(x1, x2, bool_val):
     for i, instance in enumerate(instances):
         instance["bool_val"] = (i % 2 == 0)
 
-    # Client, use with avoid affecting the next use case
-    with Client("localhost", 5500, base.servable_name, "add_cast") as client:
-        result = client.infer(instances)
+    client = Client("localhost", 5500, base.servable_name, "add_cast")
+    result = client.infer(instances)
+    release_client(client)
     assert not result[0]["value"]
     assert result[1]["value"]
     assert not result[2]["value"]
@@ -490,9 +466,9 @@ def add_cast(x1, x2, int_val):
     for i, instance in enumerate(instances):
         instance["int_val"] = i * 2
 
-    # Client, use with avoid affecting the next use case
-    with Client("localhost", 5500, base.servable_name, "add_cast") as client:
-        result = client.infer(instances)
+    client = Client("localhost", 5500, base.servable_name, "add_cast")
+    result = client.infer(instances)
+    release_client(client)
     assert result[0]["value"] == 1
     assert result[1]["value"] == 3
     assert result[2]["value"] == 5
@@ -522,9 +498,53 @@ def add_cast(x1, x2, float_val):
     for i, instance in enumerate(instances):
         instance["float_val"] = i * 2.2
 
-    # Client, use with avoid affecting the next use case
-    with Client("localhost", 5500, base.servable_name, "add_cast") as client:
-        result = client.infer(instances)
+    client = Client("localhost", 5500, base.servable_name, "add_cast")
+    result = client.infer(instances)
+    release_client(client)
     assert result[0]["value"] == 1
     assert result[1]["value"] == (2.2 + 1)
     assert result[2]["value"] == (4.4 + 1)
+
+
+@serving_test
+def test_master_worker_client_preprocess_update_numpy_success():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def preprocess(x3):
+    x3[0] = 123
+    return x3    
+    
+def postprocess(x3, x4):
+    return x3 + 1, x4 + 2
+
+@register.register_method(output_names=["x3", "x4"])
+def add_cast(x1, x2, x3):
+    x4 = register.call_preprocess(preprocess, x3) # [123, 1, 1], expect x3 is x4, same as python function call
+    y = register.call_servable(x1, x2)    
+    x3, x4 = register.call_postprocess(postprocess, x3, x4)
+    return x3, x4 
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_grpc_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for instance in instances:
+        instance["x3"] = np.ones([3])
+
+    # Client, use with avoid affecting the next use case
+    client = Client("localhost", 5500, base.servable_name, "add_cast")
+    result = client.infer(instances)
+    release_client(client)
+    x3 = np.array([123, 1, 1]) + 1
+    x4 = np.array([123, 1, 1]) + 2
+
+    assert (result[0]["x3"] == x3).all()
+    assert (result[1]["x3"] == x3).all()
+    assert (result[2]["x3"] == x3).all()
+    assert (result[0]["x4"] == x4).all()
+    assert (result[1]["x4"] == x4).all()
+    assert (result[2]["x4"] == x4).all()
diff --git a/tests/ut/python/tests/test_restful_base64_data.py b/tests/ut/python/tests/test_restful_base64_data.py
new file mode 100644
index 0000000..76f6527
--- /dev/null
+++ b/tests/ut/python/tests/test_restful_base64_data.py
@@ -0,0 +1,949 @@
+# Copyright 2020 Huawei Technologies Co., Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============================================================================
+"""test Serving RESTful, with master, worker and client"""
+
+import base64
+import numpy as np
+
+from common import ServingTestBase, serving_test
+from common import servable_config_import, servable_config_declare_servable
+from common_restful import create_multi_instances_fp32, check_result, post_restful
+from mindspore_serving import master
+from mindspore_serving import worker
+
+
+def start_str_restful_server():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+index = 0
+list_str = ["123", "456", "789"]
+def postprocess(y, label):
+    global index
+    text = list_str[index]
+    index = (index + 1) if index + 1 < len(list_str) else 0
+    return y.astype(np.int32), label + text
+
+@register.register_method(output_names=["y", "text"])
+def add_common(x1, x2, label):
+    y = register.call_servable(x1, x2)    
+    y, text = register.call_postprocess(postprocess, y, label)
+    return y, text
+    
+def empty_postprocess(y, label):
+    global index
+    if len(label) == 0:
+        text = list_str[index]
+    else:
+        text = ""
+    index = (index + 1) if index + 1 < len(list_str) else 0
+    return y.astype(np.int32), text
+
+@register.register_method(output_names=["y", "text"])
+def add_empty(x1, x2, label):
+    y = register.call_servable(x1, x2)    
+    y, text = register.call_postprocess(empty_postprocess, y, label)
+    return y, text
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    return base
+
+
+def start_bytes_restful_server():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+index = 0
+list_str = ["123", "456", "789"]
+def postprocess(y, label):
+    global index
+    label = bytes.decode(label.tobytes()) # bytes decode to str
+    text = list_str[index]
+    index = (index + 1) if index + 1 < len(list_str) else 0
+    return y.astype(np.int32), str.encode(label + text) # str encode to bytes
+
+@register.register_method(output_names=["y", "text"])
+def add_common(x1, x2, label):
+    y = register.call_servable(x1, x2)    
+    y, text = register.call_postprocess(postprocess, y, label)
+    return y, text
+
+def empty_postprocess(y, label):
+    global index
+    label = bytes.decode(label.tobytes()) # bytes decode to str
+    if len(label) == 0:
+        text = list_str[index]
+    else:
+        text = ""
+    index = (index + 1) if index + 1 < len(list_str) else 0
+    return y.astype(np.int32), str.encode(text) # str encode to bytes
+
+@register.register_method(output_names=["y", "text"])
+def add_empty(x1, x2, label):
+    y = register.call_servable(x1, x2)    
+    y, text = register.call_postprocess(empty_postprocess, y, label)
+    return y, text
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    return base
+
+
+def start_bool_int_float_restful_server():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def bool_postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_bool(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(bool_postprocess, y, bool_val)
+    return y, value
+
+def int_postprocess(y, int_val):
+    return y.astype(np.int32), int_val + 1
+
+@register.register_method(output_names=["y", "value"])
+def add_int(x1, x2, int_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(int_postprocess, y, int_val)
+    return y, value
+    
+def float_postprocess(y, float_val):
+    value = float_val + 1
+    if value.dtype == np.float16:
+        value = value.astype(np.float32)
+    return y, value   
+    
+@register.register_method(output_names=["y", "value"])
+def add_float(x1, x2, float_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(float_postprocess, y, float_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    return base
+
+
+def common_test_restful_base64_str_scalar_input_output_success(shape):
+    base = start_str_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    list_str = ["ABC", "DEF", "HIJ"]
+    for i, instance in enumerate(instances):
+        if shape is None:
+            instance["label"] = {"b64": base64.b64encode(str.encode(list_str[i])).decode(), "type": "str"}
+        else:
+            instance["label"] = {"b64": base64.b64encode(str.encode(list_str[i])).decode(), "type": "str",
+                                 'shape': shape}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_common", instances)
+    result = result["instances"]
+    assert result[0]["text"] == "ABC123"
+    assert result[1]["text"] == "DEF456"
+    assert result[2]["text"] == "HIJ789"
+
+
+@serving_test
+def test_restful_base64_str_scalar_input_output_success():
+    common_test_restful_base64_str_scalar_input_output_success(shape=None)
+
+
+@serving_test
+def test_restful_base64_str_scalar_shape1_input_output_success():
+    common_test_restful_base64_str_scalar_input_output_success(shape=[1])
+
+
+@serving_test
+def test_restful_base64_str_scalar_shape_empty_input_output_success():
+    common_test_restful_base64_str_scalar_input_output_success(shape=[])
+
+
+@serving_test
+def test_restful_base64_empty_str_input_output_success():
+    base = start_str_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    list_str = ["ABC", "", "HIJ"]
+    for i, instance in enumerate(instances):
+        instance["label"] = {"b64": base64.b64encode(str.encode(list_str[i])).decode(), "type": "str"}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_empty", instances)
+    result = result["instances"]
+    assert result[0]["text"] == ""
+    assert result[1]["text"] == "456"
+    assert result[2]["text"] == ""
+
+
+@serving_test
+def test_restful_base64_str_scalar_invalid_shape0_input_failed():
+    base = start_str_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    list_str = ["ABC", "DEF", "HIJ"]
+    for i, instance in enumerate(instances):
+        instance["label"] = {"b64": base64.b64encode(str.encode(list_str[i])).decode(), "type": "str", "shape": [0]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_common", instances)
+    assert "only support scalar when data type is string or bytes, please check 'type' or 'shape'" \
+           in str(result["error_msg"])
+
+
+@serving_test
+def test_restful_base64_str_scalar_invalid_shape_input_failed():
+    base = start_str_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    list_str = ["ABC", "DEF", "HIJ"]
+    for i, instance in enumerate(instances):
+        instance["label"] = {"b64": base64.b64encode(str.encode(list_str[i])).decode(), "type": "str", 'shape': [2]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_common", instances)
+    assert "json object, only support scalar when data type is string or bytes, please check 'type' or 'shape'" \
+           in str(result["error_msg"])
+
+
+@serving_test
+def test_restful_base64_str_1d_array_failed():
+    base = start_str_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    list_str = ["ABC", "DEF", "HIJ"]
+    for i, instance in enumerate(instances):
+        instance["label"] = [{"b64": base64.b64encode(str.encode(list_str[i])).decode(), "type": "str"},
+                             {"b64": base64.b64encode(str.encode(list_str[i])).decode(), "type": "str"}]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "json array, string or bytes type only support one item" in str(result["error_msg"])
+
+
+def common_test_restful_bytes_input_output_success(shape):
+    base = start_bytes_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    list_str = ["ABC", "DEF", "HIJ"]
+    for i, instance in enumerate(instances):
+        if shape is not None:
+            instance["label"] = {"b64": base64.b64encode(str.encode(list_str[i])).decode(), "shape": shape}
+        else:
+            instance["label"] = {"b64": base64.b64encode(str.encode(list_str[i])).decode()}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_common", instances)
+    result = result["instances"]
+    b64_decode_to_str = lambda a: bytes.decode(base64.b64decode(a["b64"]))
+    assert b64_decode_to_str(result[0]["text"]) == "ABC123"
+    assert b64_decode_to_str(result[1]["text"]) == "DEF456"
+    assert b64_decode_to_str(result[2]["text"]) == "HIJ789"
+
+
+@serving_test
+def test_restful_bytes_input_output_success():
+    common_test_restful_bytes_input_output_success(None)
+
+
+@serving_test
+def test_restful_bytes_empty_shape_success():
+    common_test_restful_bytes_input_output_success([])
+
+
+@serving_test
+def test_restful_bytes_shape1_success():
+    common_test_restful_bytes_input_output_success([1])
+
+
+@serving_test
+def test_restful_empty_bytes_input_output_success():
+    base = start_bytes_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    list_str = ["ABC", "", "HIJ"]
+    for i, instance in enumerate(instances):
+        instance["label"] = {"b64": base64.b64encode(str.encode(list_str[i])).decode()}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_empty", instances)
+    result = result["instances"]
+    b64_decode_to_str = lambda a: bytes.decode(base64.b64decode(a["b64"]))
+    assert b64_decode_to_str(result[0]["text"]) == ""
+    assert b64_decode_to_str(result[1]["text"]) == "456"
+    assert b64_decode_to_str(result[2]["text"]) == ""
+
+
+@serving_test
+def test_restful_bytes_1d_array_failed():
+    base = start_bytes_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    list_str = ["ABC", "DEF", "HIJ"]
+    for i, instance in enumerate(instances):
+        instance["label"] = [{"b64": base64.b64encode(str.encode(list_str[i])).decode()},
+                             {"b64": base64.b64encode(str.encode(list_str[i])).decode()}]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "json array, string or bytes type only support one item" in str(result["error_msg"])
+
+
+@serving_test
+def test_restful_bytes_invalid_shape_input_failed():
+    base = start_bytes_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    list_str = ["ABC", "DEF", "HIJ"]
+    for i, instance in enumerate(instances):
+        instance["label"] = {"b64": base64.b64encode(str.encode(list_str[i])).decode(), 'shape': [0]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "only support scalar when data type is string or bytes, please check 'type' or 'shape'" \
+           in result["error_msg"]
+
+
+@serving_test
+def test_restful_base64_bool_scalar_input_output_success():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for i, instance in enumerate(instances):
+        val = np.int8(i % 2 == 0)
+        instance["bool_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "bool"}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_bool", instances)
+    result = result["instances"]
+    assert not result[0]["value"]
+    assert result[1]["value"]
+    assert not result[2]["value"]
+
+
+@serving_test
+def test_restful_base64_bool_1d_array_input_output_success():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for i, instance in enumerate(instances):
+        val = [(i % 2 == 0)] * (i + 1)
+        val = np.array(val)
+        instance["bool_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "bool", "shape": [i + 1]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_bool", instances)
+    result = result["instances"]
+    assert result[0]["value"] == [False]
+    assert result[1]["value"] == [True, True]
+    assert result[2]["value"] == [False, False, False]
+
+
+@serving_test
+def test_restful_base64_bool_2d_array_input_output_success():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for i, instance in enumerate(instances):
+        val = (i % 2 == 0)
+        val = [[val] * (i + 1)] * (i + 1)
+        val = np.array(val)
+        instance["bool_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "bool",
+                                "shape": [i + 1, i + 1]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_bool", instances)
+    result = result["instances"]
+    assert result[0]["value"] == [[False]]
+    assert result[1]["value"] == [[True, True], [True, True]]
+    assert result[2]["value"] == [[False, False, False], [False, False, False], [False, False, False]]
+
+
+@serving_test
+def test_restful_base64_int_scalar_input_output_success():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for i, instance in enumerate(instances):
+        val = np.int32(i * 2)
+        instance["int_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "int32"}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_int", instances)
+    result = result["instances"]
+    assert result[0]["value"] == 1
+    assert result[1]["value"] == 3
+    assert result[2]["value"] == 5
+
+
+@serving_test
+def test_restful_base64_int_1d_empty_input_output_success():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for i, instance in enumerate(instances):
+        if i % 2 == 0:
+            val = []
+        else:
+            val = [i * 2] * (i + 1)
+        val = np.array(val).astype(np.int32)
+        instance["int_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "int32", "shape": val.shape}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_int", instances)
+    result = result["instances"]
+    assert result[0]["value"] == []
+    assert result[1]["value"] == [3, 3]
+    assert result[2]["value"] == []
+
+
+@serving_test
+def test_restful_base64_int_2d_empty_input_output_success():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for i, instance in enumerate(instances):
+        if i % 2 == 0:
+            val = [[]]
+        else:
+            val = [i * 2] * (i + 1)
+        val = np.array(val).astype(np.int32)
+        instance["int_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "int32", "shape": val.shape}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_int", instances)
+    result = result["instances"]
+    assert result[0]["value"] == [[]]
+    assert result[1]["value"] == [3, 3]
+    assert result[2]["value"] == [[]]
+
+
+@serving_test
+def test_restful_base64_int_2d_empty_invalid_shape_failed():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for _, instance in enumerate(instances):
+        val = [[]]
+        val = np.array(val).astype(np.int32)
+        instance["int_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "int32", "shape": [1, 2, 0, 1]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_int", instances)
+    assert "json object, key is 'shape', invalid shape value" in result["error_msg"]
+
+
+@serving_test
+def test_restful_base64_int_1d_array_input_output_success():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for i, instance in enumerate(instances):
+        val = i * 2
+        val = [val] * (i + 1)
+        val = np.array(val).astype(np.int32)
+        instance["int_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "int32", "shape": val.shape}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_int", instances)
+    result = result["instances"]
+    assert result[0]["value"] == [1]
+    assert result[1]["value"] == [3, 3]
+    assert result[2]["value"] == [5, 5, 5]
+
+
+def common_test_restful_base64_int_type_2d_array_input_output_success(dtype):
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    dtype_str_map = {np.int8: "int8", np.int16: "int16", np.int32: "int32", np.int64: "int64"}
+    assert dtype in dtype_str_map
+    for i, instance in enumerate(instances):
+        val = (i + 1) * 2 * (-1 if i % 2 == 0 else 1)  # -2, 4, -6
+        val = [[val] * (i + 1)] * (i + 1)
+        val = np.array(val).astype(dtype)
+        instance["int_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': dtype_str_map[dtype],
+                               "shape": val.shape}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_int", instances)
+    result = result["instances"]
+    assert result[0]["value"] == [[-1]]
+    assert result[1]["value"] == [[5, 5], [5, 5]]
+    assert result[2]["value"] == [[-5, -5, -5], [-5, -5, -5], [-5, -5, -5]]
+
+
+@serving_test
+def test_restful_base64_int8_2d_array_input_output_success():
+    common_test_restful_base64_int_type_2d_array_input_output_success(np.int8)
+
+
+@serving_test
+def test_restful_base64_int16_2d_array_input_output_success():
+    common_test_restful_base64_int_type_2d_array_input_output_success(np.int16)
+
+
+@serving_test
+def test_restful_base64_int32_2d_array_input_output_success():
+    common_test_restful_base64_int_type_2d_array_input_output_success(np.int32)
+
+
+@serving_test
+def test_restful_base64_int64_2d_array_input_output_success():
+    common_test_restful_base64_int_type_2d_array_input_output_success(np.int64)
+
+
+def common_test_restful_base64_uint_type_2d_array_input_output_success(dtype):
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    dtype_str_map = {np.uint8: "uint8", np.uint16: "uint16", np.uint32: "uint32", np.uint64: "uint64"}
+    assert dtype in dtype_str_map
+    for i, instance in enumerate(instances):
+        val = i * 2
+        val = [[val] * (i + 1)] * (i + 1)
+        val = np.array(val).astype(dtype)
+        instance["int_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': dtype_str_map[dtype],
+                               "shape": val.shape}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_int", instances)
+    result = result["instances"]
+    assert result[0]["value"] == [[1]]
+    assert result[1]["value"] == [[3, 3], [3, 3]]
+    assert result[2]["value"] == [[5, 5, 5], [5, 5, 5], [5, 5, 5]]
+
+
+@serving_test
+def test_restful_base64_uint8_2d_array_input_output_success():
+    common_test_restful_base64_uint_type_2d_array_input_output_success(np.uint8)
+
+
+@serving_test
+def test_restful_base64_uint16_2d_array_input_output_success():
+    common_test_restful_base64_uint_type_2d_array_input_output_success(np.uint16)
+
+
+@serving_test
+def test_restful_base64_uint32_2d_array_input_output_success():
+    common_test_restful_base64_uint_type_2d_array_input_output_success(np.uint32)
+
+
+@serving_test
+def test_restful_base64_uint64_2d_array_input_output_success():
+    common_test_restful_base64_uint_type_2d_array_input_output_success(np.uint64)
+
+
+@serving_test
+def test_restful_base64_float_scalar_input_output_success():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for i, instance in enumerate(instances):
+        val = np.float32(i * 2.2)
+        instance["float_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "fp32"}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_float", instances)
+    result = result["instances"]
+    assert result[0]["value"] == 1.0
+    assert abs(result[1]["value"] - (2.2 + 1)) < 0.001
+    assert abs(result[2]["value"] - (4.4 + 1)) < 0.001
+
+
+@serving_test
+def test_restful_base64_float_1d_array_input_output_success():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    y_data_list = []
+    for i, instance in enumerate(instances):
+        val = [i * 2.2 * (-1 if i % 2 == 0 else 1)] * (i + 1)  # [0], [2.2, 2.2], [-4.4, -4.4, -4.4]
+        val = np.array(val).astype(np.float32)
+        y_data_list.append(val + 1)
+        instance["float_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "fp32", 'shape': [i + 1]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_float", instances)
+    check_result(result, y_data_list, "value")
+
+
+def common_test_restful_base64_float_type_2d_array_input_output_success(dtype):
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+
+    dtype_str_map = {np.float16: "fp16", np.float32: "fp32", np.float64: "fp64"}
+    assert dtype in dtype_str_map
+
+    y_data_list = []
+    for i, instance in enumerate(instances):
+        val = i * 2.2 * (-1 if i % 2 == 0 else 1)  # 0, 2.2 ,-4.4
+        val = [[val] * (i + 1)] * (i + 1)
+        val = np.array(val).astype(dtype)
+        y_data_list.append(val + 1)
+        instance["float_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': dtype_str_map[dtype],
+                                 'shape': [i + 1, i + 1]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_float", instances)
+    check_result(result, y_data_list, "value")
+
+
+@serving_test
+def test_restful_base64_float16_2d_array_input_output_success():
+    common_test_restful_base64_float_type_2d_array_input_output_success(np.float16)
+
+
+@serving_test
+def test_restful_base64_float32_2d_array_input_output_success():
+    common_test_restful_base64_float_type_2d_array_input_output_success(np.float32)
+
+
+@serving_test
+def test_restful_base64_float64_2d_array_input_output_success():
+    common_test_restful_base64_float_type_2d_array_input_output_success(np.float64)
+
+
+@serving_test
+def test_restful_base64_float16_2d_array_not_support_fp16_output_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, float_val):
+    return y, float_val + 1    
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, float_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, float_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+
+    dtype = np.float16
+    dtype_str_map = {np.float16: "fp16", np.float32: "fp32", np.float64: "fp64"}
+    assert dtype in dtype_str_map
+
+    y_data_list = []
+    for i, instance in enumerate(instances):
+        val = i * 2.2 * (-1 if i % 2 == 0 else 1)  # 0, 2.2 ,-4.4
+        val = [[val] * (i + 1)] * (i + 1)
+        val = np.array(val).astype(dtype)
+        y_data_list.append(val + 1)
+        instance["float_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': dtype_str_map[dtype],
+                                 'shape': [i + 1, i + 1]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "fp16 reply is not supported" in result["error_msg"]
+
+
+@serving_test
+def test_restful_base64_dtype_unknow_failed():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+
+    dtype = np.float16
+    dtype_str_map = {np.float16: "fp16", np.float32: "fp32", np.float64: "fp64"}
+    assert dtype in dtype_str_map
+
+    y_data_list = []
+    for i, instance in enumerate(instances):
+        val = i * 2.2 * (-1 if i % 2 == 0 else 1)  # 0, 2.2 ,-4.4
+        val = [[val] * (i + 1)] * (i + 1)
+        val = np.array(val).astype(dtype)
+        y_data_list.append(val + 1)
+        instance["float_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "dtype_unknow",
+                                 'shape': [i + 1, i + 1]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_float", instances)
+    assert "Parser request failed, json object, specified type:'dtype_unknow' is illegal" in result["error_msg"]
+
+
+@serving_test
+def test_restful_base64_dtype_empty_failed():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+
+    dtype = np.float16
+    dtype_str_map = {np.float16: "fp16", np.float32: "fp32", np.float64: "fp64"}
+    assert dtype in dtype_str_map
+
+    y_data_list = []
+    for i, instance in enumerate(instances):
+        val = i * 2.2 * (-1 if i % 2 == 0 else 1)  # 0, 2.2 ,-4.4
+        val = [[val] * (i + 1)] * (i + 1)
+        val = np.array(val).astype(dtype)
+        y_data_list.append(val + 1)
+        instance["float_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "",
+                                 'shape': [i + 1, i + 1]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_float", instances)
+    assert "Parser request failed, json object, specified type:'' is illegal" in result["error_msg"]
+
+
+@serving_test
+def test_restful_base64_float16_2d_array_shape_not_match1_large_failed():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+
+    dtype = np.float16
+    dtype_str_map = {np.float16: "fp16", np.float32: "fp32", np.float64: "fp64"}
+    assert dtype in dtype_str_map
+
+    y_data_list = []
+    for i, instance in enumerate(instances):
+        val = i * 2.2 * (-1 if i % 2 == 0 else 1)  # 0, 2.2 ,-4.4
+        val = [[val] * (i + 1)] * (i + 1)
+        val = np.array(val).astype(dtype)
+        y_data_list.append(val + 1)
+        instance["float_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': dtype_str_map[dtype],
+                                 'shape': [i + 2, i + 2]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_float", instances)
+    assert "Parser request failed, size is not matched" in result["error_msg"]
+
+
+@serving_test
+def test_restful_base64_float16_2d_array_shape_not_match2_small_failed():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+
+    dtype = np.float16
+    dtype_str_map = {np.float16: "fp16", np.float32: "fp32", np.float64: "fp64"}
+    assert dtype in dtype_str_map
+
+    y_data_list = []
+    for i, instance in enumerate(instances):
+        val = i * 2.2 * (-1 if i % 2 == 0 else 1)  # 0, 2.2 ,-4.4
+        val = [[val] * (i + 2)] * (i + 2)
+        val = np.array(val).astype(dtype)
+        y_data_list.append(val + 1)
+        instance["float_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': dtype_str_map[dtype],
+                                 'shape': [i + 1, i + 1]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_float", instances)
+    assert "Parser request failed, size is not matched" in result["error_msg"]
+
+
+@serving_test
+def test_restful_base64_float16_2d_array_shape_not_match3_small_failed():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+
+    dtype = np.float16
+    dtype_str_map = {np.float16: "fp16", np.float32: "fp32", np.float64: "fp64"}
+    assert dtype in dtype_str_map
+
+    y_data_list = []
+    for i, instance in enumerate(instances):
+        val = i * 2.2 * (-1 if i % 2 == 0 else 1)  # 0, 2.2 ,-4.4
+        val = [[val] * (i + 2)] * (i + 2)
+        val = np.array(val).astype(dtype)
+        y_data_list.append(val + 1)
+        instance["float_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': dtype_str_map[dtype],
+                                 'shape': [i + 2, i]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_float", instances)
+    assert "Parser request failed, size is not matched" in result["error_msg"]
+
+
+@serving_test
+def test_restful_base64_float16_2d_array_dtype_not_match4_empty_data_failed():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+
+    dtype = np.float16
+    y_data_list = []
+    for i, instance in enumerate(instances):
+        val = [[]]
+        val = np.array(val).astype(dtype)
+        y_data_list.append(val + 1)
+        instance["float_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "fp16",
+                                 'shape': [i + 1, i + 1]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_float", instances)
+    assert "Parser request failed, size is not matched" in result["error_msg"]
+
+
+@serving_test
+def test_restful_base64_float16_2d_array_dtype_not_match5_empty_shape_failed():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+
+    dtype = np.float16
+    y_data_list = []
+    for i, instance in enumerate(instances):
+        val = i * 2.2 * (-1 if i % 2 == 0 else 1)  # 0, 2.2 ,-4.4
+        val = [[val] * (i + 2)] * (i + 2)
+        val = np.array(val).astype(dtype)
+        y_data_list.append(val + 1)
+        instance["float_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "fp16",
+                                 'shape': []}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_float", instances)
+    assert "Parser request failed, size is not matched" in result["error_msg"]
+
+
+@serving_test
+def test_restful_base64_float16_2d_array_dtype_not_match6_empty_shape3_failed():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+
+    dtype = np.float16
+    y_data_list = []
+    for i, instance in enumerate(instances):
+        val = i * 2.2 * (-1 if i % 2 == 0 else 1)  # 0, 2.2 ,-4.4
+        val = [[val] * (i + 2)] * (i + 2)
+        val = np.array(val).astype(dtype)
+        y_data_list.append(val + 1)
+        instance["float_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "fp16"}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_float", instances)
+    assert "Parser request failed, size is not matched" in result["error_msg"]
+
+
+@serving_test
+def test_restful_base64_float16_2d_array_dtype_not_match_failed():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+
+    dtype = np.float16
+    y_data_list = []
+    for i, instance in enumerate(instances):
+        val = i * 2.2 * (-1 if i % 2 == 0 else 1)  # 0, 2.2 ,-4.4
+        val = [[val] * (i + 2)] * (i + 2)
+        val = np.array(val).astype(dtype)
+        y_data_list.append(val + 1)
+        instance["float_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "fp32",
+                                 'shape': [i + 2, i + 2]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_float", instances)
+    assert "Parser request failed, size is not matched" in result["error_msg"]
+
+
+@serving_test
+def test_restful_base64_float16_2d_array_invalid_shape_2d_shape_failed():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+
+    dtype = np.float16
+    y_data_list = []
+    for i, instance in enumerate(instances):
+        val = i * 2.2 * (-1 if i % 2 == 0 else 1)  # 0, 2.2 ,-4.4
+        val = [[val] * (i + 2)] * (i + 2)
+        val = np.array(val).astype(dtype)
+        y_data_list.append(val + 1)
+        instance["float_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "fp16", "shape": [[]]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_float", instances)
+    assert "json object, key is 'shape', array value should be unsigned integer" in result["error_msg"]
+
+
+@serving_test
+def test_restful_base64_float16_2d_array_invalid_shape2_str_shape_failed():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+
+    dtype = np.float16
+    y_data_list = []
+    for i, instance in enumerate(instances):
+        val = i * 2.2 * (-1 if i % 2 == 0 else 1)  # 0, 2.2 ,-4.4
+        val = [[val] * (i + 2)] * (i + 2)
+        val = np.array(val).astype(dtype)
+        y_data_list.append(val + 1)
+        instance["float_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "fp16", "shape": ["abc"]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_float", instances)
+    assert "json object, key is 'shape', array value should be unsigned integer" in result["error_msg"]
+
+
+@serving_test
+def test_restful_base64_float16_2d_array_invalid_shape3_float_shape_failed():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+
+    dtype = np.float16
+    y_data_list = []
+    for i, instance in enumerate(instances):
+        val = i * 2.2 * (-1 if i % 2 == 0 else 1)  # 0, 2.2 ,-4.4
+        val = [[val] * (i + 2)] * (i + 2)
+        val = np.array(val).astype(dtype)
+        y_data_list.append(val + 1)
+        instance["float_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "fp16", "shape": [1.1]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_float", instances)
+    assert "json object, key is 'shape', array value should be unsigned integer" in result["error_msg"]
+
+
+@serving_test
+def test_restful_base64_float16_2d_array_invalid_shape4_negative_shape_failed():
+    base = start_bool_int_float_restful_server()
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+
+    dtype = np.float16
+    y_data_list = []
+    for i, instance in enumerate(instances):
+        val = i * 2.2 * (-1 if i % 2 == 0 else 1)  # 0, 2.2 ,-4.4
+        val = [[val] * (i + 2)] * (i + 2)
+        val = np.array(val).astype(dtype)
+        y_data_list.append(val + 1)
+        instance["float_val"] = {"b64": base64.b64encode(val.tobytes()).decode(), 'type': "fp16", "shape": [-1]}
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_float", instances)
+    assert "json object, key is 'shape', array value should be unsigned integer" in result["error_msg"]
diff --git a/tests/ut/python/tests/test_restful_json_data.py b/tests/ut/python/tests/test_restful_json_data.py
new file mode 100644
index 0000000..de065c7
--- /dev/null
+++ b/tests/ut/python/tests/test_restful_json_data.py
@@ -0,0 +1,1040 @@
+# Copyright 2020 Huawei Technologies Co., Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============================================================================
+"""test Serving RESTful, with master, worker and client"""
+
+from mindspore_serving import master
+from mindspore_serving import worker
+from common import ServingTestBase, serving_test
+from common import servable_config_import, servable_config_declare_servable
+from common_restful import compare_float_value, create_multi_instances_fp32, post_restful
+
+
+@serving_test
+def test_restful_str_scalar_input_output_success():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+index = 0
+list_str = ["123", "456", "789"]
+def postprocess(y, label):
+    global index
+    text = list_str[index]
+    index = (index + 1) if index + 1 < len(list_str) else 0
+    return y.astype(np.int32), label + text
+
+@register.register_method(output_names=["y", "text"])
+def add_cast(x1, x2, label):
+    y = register.call_servable(x1, x2)    
+    y, text = register.call_postprocess(postprocess, y, label)
+    return y, text
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    list_str = ["ABC", "DEF", "HIJ"]
+    for i, instance in enumerate(instances):
+        instance["label"] = list_str[i]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    result = result["instances"]
+    assert result[0]["text"] == "ABC123"
+    assert result[1]["text"] == "DEF456"
+    assert result[2]["text"] == "HIJ789"
+
+
+@serving_test
+def test_restful_str_scalar_shape1_input_output_success():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+index = 0
+list_str = ["123", "456", "789"]
+def postprocess(y, label):
+    global index
+    text = list_str[index]
+    index = (index + 1) if index + 1 < len(list_str) else 0
+    return y.astype(np.int32), label + text
+
+@register.register_method(output_names=["y", "text"])
+def add_cast(x1, x2, label):
+    y = register.call_servable(x1, x2)    
+    y, text = register.call_postprocess(postprocess, y, label)
+    return y, text
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    list_str = ["ABC", "DEF", "HIJ"]
+    for i, instance in enumerate(instances):
+        instance["label"] = [list_str[i]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    result = result["instances"]
+    assert result[0]["text"] == "ABC123"
+    assert result[1]["text"] == "DEF456"
+    assert result[2]["text"] == "HIJ789"
+
+
+@serving_test
+def test_restful_empty_str_input_output_success():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+index = 0
+list_str = ["123", "456", "789"]
+def postprocess(y, label):
+    global index
+    if len(label) == 0:
+        text = list_str[index]
+    else:
+        text = ""
+    index = (index + 1) if index + 1 < len(list_str) else 0
+    return y.astype(np.int32), text
+
+@register.register_method(output_names=["y", "text"])
+def add_cast(x1, x2, label):
+    y = register.call_servable(x1, x2)    
+    y, text = register.call_postprocess(postprocess, y, label)
+    return y, text
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    list_str = ["ABC", "", "HIJ"]
+    for i, instance in enumerate(instances):
+        instance["label"] = list_str[i]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    result = result["instances"]
+    assert result[0]["text"] == ""
+    assert result[1]["text"] == "456"
+    assert result[2]["text"] == ""
+
+
+@serving_test
+def test_restful_str_2d_array_one_item_input_output_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+index = 0
+list_str = ["123", "456", "789"]
+def postprocess(y, label):
+    global index
+    if len(label) == 0:
+        text = list_str[index]
+    else:
+        text = ""
+    index = (index + 1) if index + 1 < len(list_str) else 0
+    return y.astype(np.int32), text
+
+@register.register_method(output_names=["y", "text"])
+def add_cast(x1, x2, label):
+    y = register.call_servable(x1, x2)    
+    y, text = register.call_postprocess(postprocess, y, label)
+    return y, text
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    list_str = ["ABC", "", "HIJ"]
+    for i, instance in enumerate(instances):
+        instance["label"] = [[list_str[i]]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "bytes or string type input  shape can only be (1,) or empty, but given shape is [1, 1]" \
+           in result["error_msg"]
+
+
+@serving_test
+def test_restful_str_1d_array_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+index = 0
+list_str = ["123", "456", "789"]
+def postprocess(y, label):
+    global index
+    text = list_str[index]
+    index = (index + 1) if index + 1 < len(list_str) else 0
+    return y.astype(np.int32), label + text
+
+@register.register_method(output_names=["y", "text"])
+def add_cast(x1, x2, label):
+    y = register.call_servable(x1, x2)    
+    y, text = register.call_postprocess(postprocess, y, label)
+    return y, text
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    list_str = ["ABC", "DEF", "HIJ"]
+    for i, instance in enumerate(instances):
+        instance["label"] = [list_str[i], list_str[i]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "json array, string or bytes type only support one item" in str(result["error_msg"])
+
+
+@serving_test
+def test_restful_str_invalid_array_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+index = 0
+list_str = ["123", "456", "789"]
+def postprocess(y, label):
+    global index
+    text = list_str[index]
+    index = (index + 1) if index + 1 < len(list_str) else 0
+    return y.astype(np.int32), label + text
+
+@register.register_method(output_names=["y", "text"])
+def add_cast(x1, x2, label):
+    y = register.call_servable(x1, x2)    
+    y, text = register.call_postprocess(postprocess, y, label)
+    return y, text
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    list_str = ["ABC", "DEF", "HIJ"]
+    for i, instance in enumerate(instances):
+        instance["label"] = [list_str[i], [list_str[i]]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "json array, string or bytes type only support one item" in str(result["error_msg"])
+
+
+@serving_test
+def test_restful_bool_scalar_input_output_success():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), not bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for i, instance in enumerate(instances):
+        instance["bool_val"] = (i % 2 == 0)
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    result = result["instances"]
+    assert not result[0]["value"]
+    assert result[1]["value"]
+    assert not result[2]["value"]
+
+
+@serving_test
+def test_restful_bool_1d_array_input_output_success():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for i, instance in enumerate(instances):
+        instance["bool_val"] = [(i % 2 == 0)] * (i + 1)
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    result = result["instances"]
+    assert result[0]["value"] == [False]
+    assert result[1]["value"] == [True, True]
+    assert result[2]["value"] == [False, False, False]
+
+
+@serving_test
+def test_restful_bool_2d_array_input_output_success():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for i, instance in enumerate(instances):
+        val = (i % 2 == 0)
+        val = [[val] * (i + 1)] * (i + 1)
+        instance["bool_val"] = val
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    result = result["instances"]
+    assert result[0]["value"] == [[False]]
+    assert result[1]["value"] == [[True, True], [True, True]]
+    assert result[2]["value"] == [[False, False, False], [False, False, False], [False, False, False]]
+
+
+@serving_test
+def test_restful_bool_invalid_array_array_scalar_mix_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for instance in instances:
+        instance["bool_val"] = [[False], True]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "invalid json array: json type is not array" in result['error_msg']
+
+
+@serving_test
+def test_restful_bool_invalid_array2_scalar_array_mix_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for instance in instances:
+        instance["bool_val"] = [False, [True]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "json array, data should be number, bool, string or bytes" in result['error_msg']
+
+
+@serving_test
+def test_restful_bool_invalid_array3_array_dim_not_match_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for instance in instances:
+        instance["bool_val"] = [[False, True], [True]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "invalid json array: json size is 1, the dim 1 expected to be 2" in result['error_msg']
+
+
+@serving_test
+def test_restful_bool_invalid_array4_array_dim_not_match_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for instance in instances:
+        instance["bool_val"] = [[[False, True]], [[True]]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "invalid json array: json size is 1, the dim 2 expected to be 2" in result['error_msg']
+
+
+@serving_test
+def test_restful_int_scalar_input_output_success():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, int_val):
+    return y.astype(np.int32), int_val + 1
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, int_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, int_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for i, instance in enumerate(instances):
+        val = i * 2
+        instance["int_val"] = val
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    result = result["instances"]
+    assert result[0]["value"] == 1
+    assert result[1]["value"] == 3
+    assert result[2]["value"] == 5
+
+
+@serving_test
+def test_restful_int_empty_input_output_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, int_val):
+    return y.astype(np.int32), int_val + 1
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, int_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, int_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for i, instance in enumerate(instances):
+        if i % 2 == 0:
+            val = []
+        else:
+            val = [i * 2] * (i + 1)
+        instance["int_val"] = val
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "json array, shape is empty" in result["error_msg"]
+
+
+@serving_test
+def test_restful_int_1d_array_input_output_success():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, int_val):
+    return y.astype(np.int32), int_val + 1
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, int_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, int_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for i, instance in enumerate(instances):
+        val = i * 2
+        val = [val] * (i + 1)
+        instance["int_val"] = val
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    result = result["instances"]
+    assert result[0]["value"] == [1]
+    assert result[1]["value"] == [3, 3]
+    assert result[2]["value"] == [5, 5, 5]
+
+
+@serving_test
+def test_restful_int_2d_array_input_output_success():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, int_val):
+    print("-----------------------int val ", int_val, int_val + 1)
+    return y.astype(np.int32), int_val + 1
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, int_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, int_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for i, instance in enumerate(instances):
+        val = i * 2
+        val = [[val] * (i + 1)] * (i + 1)
+        instance["int_val"] = val
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    result = result["instances"]
+    assert result[0]["value"] == [[1]]
+    assert result[1]["value"] == [[3, 3], [3, 3]]
+    assert result[2]["value"] == [[5, 5, 5], [5, 5, 5], [5, 5, 5]]
+
+
+@serving_test
+def test_restful_float_scalar_input_output_success():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, float_val):
+    return y, float_val + 1
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, float_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, float_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for i, instance in enumerate(instances):
+        val = i * 2.2
+        instance["float_val"] = val
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    result = result["instances"]
+    assert result[0]["value"] == 1
+    assert abs(result[1]["value"] - (2.2 + 1)) < 0.001
+    assert abs(result[2]["value"] - (4.4 + 1)) < 0.001
+
+
+@serving_test
+def test_restful_float_1d_array_input_output_success():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, float_val):
+    return y, float_val + 1
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, float_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, float_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for i, instance in enumerate(instances):
+        val = [i * 2.2] * (i + 1)
+        instance["float_val"] = val
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    result = result["instances"]
+    compare_float_value(result[0]["value"], [1])
+    compare_float_value(result[1]["value"], [3.2, 3.2])
+    compare_float_value(result[2]["value"], [5.4, 5.4, 5.4])
+
+
+@serving_test
+def test_restful_float_2d_array_input_output_success():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, float_val):
+    return y, float_val + 1
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, float_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, float_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for i, instance in enumerate(instances):
+        val = i * 2.2
+        val = [[val] * (i + 1)] * (i + 1)
+        instance["float_val"] = val
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    result = result["instances"]
+    compare_float_value(result[0]["value"], [[1]])
+    compare_float_value(result[1]["value"], [[3.2, 3.2], [3.2, 3.2]])
+    compare_float_value(result[2]["value"], [[5.4, 5.4, 5.4], [5.4, 5.4, 5.4], [5.4, 5.4, 5.4]])
+
+
+@serving_test
+def test_restful_mix_bool_int_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for instance in instances:
+        instance["bool_val"] = [[False, True], [1, 1]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "json array, elements type is not equal" in result['error_msg']
+
+
+@serving_test
+def test_restful_mix_bool_int2_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for instance in instances:
+        instance["bool_val"] = [[False, 1]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "json array, elements type is not equal" in result['error_msg']
+
+
+@serving_test
+def test_restful_mix_float_int_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for instance in instances:
+        instance["bool_val"] = [[1.1, 1.2], [1, 1]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "json array, elements type is not equal" in result['error_msg']
+
+
+@serving_test
+def test_restful_mix_float_int2_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for instance in instances:
+        instance["bool_val"] = [[1.1, 1]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "json array, elements type is not equal" in result['error_msg']
+
+
+@serving_test
+def test_restful_mix_int_float_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for instance in instances:
+        instance["bool_val"] = [[1, 1], [1.1, 1.2]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "json array, elements type is not equal" in result['error_msg']
+
+
+@serving_test
+def test_restful_mix_int_float2_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for instance in instances:
+        instance["bool_val"] = [[1, 1.2]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "json array, elements type is not equal" in result['error_msg']
+
+
+@serving_test
+def test_restful_mix_str_float_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for instance in instances:
+        instance["bool_val"] = [["a", "b"], [1.1, 1.2]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "string or bytes type only support one item" in result['error_msg']
+
+
+@serving_test
+def test_restful_mix_str_float2_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for instance in instances:
+        instance["bool_val"] = [["a", 1.2]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "string or bytes type only support one item" in result['error_msg']
+
+
+@serving_test
+def test_restful_mix_float_str_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for instance in instances:
+        instance["bool_val"] = [[1.1, 1.2], ["a", "b"]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "json array, elements type is not equal" in result['error_msg']
+
+
+@serving_test
+def test_restful_mix_float_str2_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for instance in instances:
+        instance["bool_val"] = [[1.1, "b"]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "json array, elements type is not equal" in result['error_msg']
+
+
+@serving_test
+def test_restful_mix_bytes_str_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for instance in instances:
+        instance["bool_val"] = [[{"b64": ""}, {"b64": ""}], ["a", "b"]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "string or bytes type only support one item" in result['error_msg']
+
+
+@serving_test
+def test_restful_mix_bytes_bool_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for instance in instances:
+        instance["bool_val"] = [[{"b64": ""}, {"b64": ""}], [True, False]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "string or bytes type only support one item" in result['error_msg']
+
+
+@serving_test
+def test_restful_mix_bool_bytes_input_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def postprocess(y, bool_val):
+    return y.astype(np.int32), ~bool_val
+
+@register.register_method(output_names=["y", "value"])
+def add_cast(x1, x2, bool_val):
+    y = register.call_servable(x1, x2)    
+    y, value = register.call_postprocess(postprocess, y, bool_val)
+    return y, value
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    for instance in instances:
+        instance["bool_val"] = [[True, False], [{"b64": ""}, {"b64": ""}]]
+
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "json array, data should be number, bool, string or bytes" in result['error_msg']
diff --git a/tests/ut/python/tests/test_restful_request.py b/tests/ut/python/tests/test_restful_request.py
new file mode 100644
index 0000000..114a8af
--- /dev/null
+++ b/tests/ut/python/tests/test_restful_request.py
@@ -0,0 +1,335 @@
+# Copyright 2020 Huawei Technologies Co., Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============================================================================
+"""test Serving RESTful, with master, worker and client"""
+
+import json
+import requests
+from mindspore_serving import master
+from mindspore_serving import worker
+from common import ServingTestBase, serving_test
+from common import servable_config_import, servable_config_declare_servable
+from common_restful import create_multi_instances_fp32, check_result, post_restful
+from common_restful import create_multi_instances_int32_input_fp32_output
+
+
+@serving_test
+def test_restful_request_success():
+    base = ServingTestBase()
+    base.init_servable(1, "add_servable_config.py")
+    worker.start_servable_in_master(base.servable_dir, base.servable_name, 0)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, y_data_list = create_multi_instances_fp32(instance_count)
+    result = post_restful("localhost", 5500, base.servable_name, "add_common", instances)
+    check_result(result, y_data_list)
+
+
+@serving_test
+def test_restful_request_multi_times_success():
+    base = ServingTestBase()
+    base.init_servable(1, "add_servable_config.py")
+    worker.start_servable_in_master(base.servable_dir, base.servable_name, 0)
+    master.start_restful_server("0.0.0.0", 5500)
+    for instance_count in range(1, 5):
+        instances, y_data_list = create_multi_instances_fp32(instance_count)
+        result = post_restful("localhost", 5500, base.servable_name, "add_common", instances)
+        check_result(result, y_data_list)
+
+
+@serving_test
+def test_restful_request_multi_times_int32_success():
+    base = ServingTestBase()
+    base.init_servable(1, "add_servable_config.py")
+    worker.start_servable_in_master(base.servable_dir, base.servable_name, 0)
+    master.start_restful_server("0.0.0.0", 5500)
+    for instance_count in range(1, 5):
+        instances, y_data_list = create_multi_instances_int32_input_fp32_output(instance_count)
+        result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+        check_result(result, y_data_list)
+
+
+@serving_test
+def test_restful_request_worker_alone_success():
+    base = ServingTestBase()
+    base.init_servable(1, "add_servable_config.py")
+    master.start_master_server(master_port=7600)
+    master.start_restful_server("0.0.0.0", 5500)
+    worker.start_servable(base.servable_dir, base.servable_name, master_port=7600, worker_port=6600)
+    # Client
+    instance_count = 3
+    instances, y_data_list = create_multi_instances_fp32(instance_count)
+    result = post_restful("localhost", 5500, base.servable_name, "add_common", instances)
+    check_result(result, y_data_list)
+
+
+@serving_test
+def test_restful_request_worker_alone_multi_times_success():
+    base = ServingTestBase()
+    base.init_servable(1, "add_servable_config.py")
+    master.start_master_server(master_port=7600)
+    master.start_restful_server("0.0.0.0", 5500)
+    worker.start_servable(base.servable_dir, base.servable_name, master_port=7600, worker_port=6600)
+    # Client
+    for instance_count in range(1, 5):
+        instances, y_data_list = create_multi_instances_fp32(instance_count)
+        result = post_restful("localhost", 5500, base.servable_name, "add_common", instances)
+        check_result(result, y_data_list)
+
+
+@serving_test
+def test_restful_request_worker_alone_servable_invalid_failed():
+    base = ServingTestBase()
+    base.init_servable(1, "add_servable_config.py")
+    master.start_master_server(master_port=7600)
+    master.start_restful_server("0.0.0.0", 5500)
+    worker.start_servable(base.servable_dir, base.servable_name, master_port=7600, worker_port=6600)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    result = post_restful("localhost", 5500, base.servable_name + "_error", "add_common", instances)
+    assert "servable is not available" in str(result["error_msg"])
+
+
+@serving_test
+def test_restful_request_worker_alone_method_invalid_failed():
+    base = ServingTestBase()
+    base.init_servable(1, "add_servable_config.py")
+    master.start_master_server(master_port=7600)
+    master.start_restful_server("0.0.0.0", 5500)
+    worker.start_servable(base.servable_dir, base.servable_name, master_port=7600, worker_port=6600)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    result = post_restful("localhost", 5500, base.servable_name, "add_common" + "_error", instances)
+    assert "method is not available" in str(result["error_msg"])
+
+
+@serving_test
+def test_restful_request_worker_alone_with_version_number_0_success():
+    base = ServingTestBase()
+    base.init_servable(1, "add_servable_config.py")
+    master.start_master_server(master_port=7600)
+    master.start_restful_server("0.0.0.0", 5500)
+    worker.start_servable(base.servable_dir, base.servable_name, master_port=7600, worker_port=6600)
+    # Client
+    instance_count = 3
+    instances, y_data_list = create_multi_instances_fp32(instance_count)
+    result = post_restful("localhost", 5500, base.servable_name, "add_common", instances, 0)
+    check_result(result, y_data_list)
+
+
+@serving_test
+def test_restful_request_worker_alone_with_version_number_1_success():
+    base = ServingTestBase()
+    base.init_servable(1, "add_servable_config.py")
+    master.start_master_server(master_port=7600)
+    master.start_restful_server("0.0.0.0", 5500)
+    worker.start_servable(base.servable_dir, base.servable_name, master_port=7600, worker_port=6600)
+    # Client
+    instance_count = 3
+    instances, y_data_list = create_multi_instances_fp32(instance_count)
+    result = post_restful("localhost", 5500, base.servable_name, "add_common", instances, 1)
+    check_result(result, y_data_list)
+
+
+@serving_test
+def test_restful_request_worker_alone_with_version_number_2_invalid_failed():
+    base = ServingTestBase()
+    base.init_servable(1, "add_servable_config.py")
+    master.start_master_server(master_port=7600)
+    master.start_restful_server("0.0.0.0", 5500)
+    worker.start_servable(base.servable_dir, base.servable_name, master_port=7600, worker_port=6600)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    result = post_restful("localhost", 5500, base.servable_name, "add_common", instances, 2)
+    assert "servable is not available" in str(result["error_msg"])
+
+
+@serving_test
+def test_restful_request_worker_alone_version_number_negative_failed():
+    base = ServingTestBase()
+    base.init_servable(1, "add_servable_config.py")
+    master.start_master_server(master_port=7600)
+    master.start_restful_server("0.0.0.0", 5500)
+    worker.start_servable(base.servable_dir, base.servable_name, master_port=7600, worker_port=6600)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    result = post_restful("localhost", 5500, base.servable_name, "add_common", instances, -1)
+    assert "please check url, version number range failed" in str(result["error_msg"])
+
+
+@serving_test
+def test_restful_request_worker_alone_without_model_invalid_failed():
+    base = ServingTestBase()
+    base.init_servable(1, "add_servable_config.py")
+    master.start_master_server(master_port=7600)
+    master.start_restful_server("0.0.0.0", 5500)
+    worker.start_servable(base.servable_dir, base.servable_name, master_port=7600, worker_port=6600)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+
+    instances_map = {"instances": instances}
+    post_payload = json.dumps(instances_map)
+    print("request:", post_payload)
+    request_url = f"http://localhost:5500/x/:add_common"
+    result = requests.post(request_url, data=post_payload)
+    print("result", result.text)
+    result = json.loads(result.text)
+    assert "please check url, the keyword:[model] must contain" in str(result["error_msg"])
+
+
+@serving_test
+def test_restful_request_worker_alone_without_method_invalid_failed():
+    base = ServingTestBase()
+    base.init_servable(1, "add_servable_config.py")
+    master.start_master_server(master_port=7600)
+    master.start_restful_server("0.0.0.0", 5500)
+    worker.start_servable(base.servable_dir, base.servable_name, master_port=7600, worker_port=6600)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+
+    instances_map = {"instances": instances}
+    post_payload = json.dumps(instances_map)
+    print("request:", post_payload)
+    request_url = f"http://localhost:5500/model/{base.servable_name}"
+    result = requests.post(request_url, data=post_payload)
+    print("result", result.text)
+    result = json.loads(result.text)
+    assert "please check url, the keyword:[service method] must contain." in str(result["error_msg"])
+
+
+@serving_test
+def test_restful_request_without_method_invalid_failed():
+    base = ServingTestBase()
+    base.init_servable(1, "add_servable_config.py")
+    master.start_master_server(master_port=7600)
+    master.start_restful_server("0.0.0.0", 5500)
+    worker.start_servable(base.servable_dir, base.servable_name, master_port=7600, worker_port=6600)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+
+    instances_map = {"instances": instances}
+    post_payload = json.dumps(instances_map)
+    print("request:", post_payload)
+    request_url = f"http://localhost:5500/model/{base.servable_name}"
+    result = requests.post(request_url, data=post_payload)
+    print("result", result.text)
+    result = json.loads(result.text)
+    assert "please check url, the keyword:[service method] must contain." in str(result["error_msg"])
+
+
+@serving_test
+def test_restful_request_worker_alone_servable_version_reverse_success():
+    base = ServingTestBase()
+    base.init_servable(1, "add_servable_config.py")
+    master.start_master_server(master_port=7600)
+    master.start_restful_server("0.0.0.0", 5500)
+    worker.start_servable(base.servable_dir, base.servable_name, master_port=7600, worker_port=6600)
+    # Client
+    instance_count = 3
+    instances, y_data_list = create_multi_instances_fp32(instance_count)
+
+    instances_map = {"instances": instances}
+    post_payload = json.dumps(instances_map)
+    print("request:", post_payload)
+    request_url = f"http://localhost:5500/version/0/model/{base.servable_name}:add_common"
+    result = requests.post(request_url, data=post_payload)
+    print("result", result.text)
+    result = json.loads(result.text)
+    check_result(result, y_data_list)
+
+
+@serving_test
+def test_restful_request_preprocess_outputs_count_not_match_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def add_trans_datatype(x1, x2):
+    return x1.astype(np.float32)
+
+@register.register_method(output_names=["y"])
+def add_cast(x1, x2):
+    x1, x2 = register.call_preprocess(add_trans_datatype, x1, x2)  # cast input to float32
+    y = register.call_servable(x1, x2)    
+    return y
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+
+    print(result)
+    assert "Preprocess Failed" in str(result["instances"][0]["error_msg"])
+
+
+@serving_test
+def test_restful_request_postprocess_outputs_count_not_match_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def add_trans_datatype(x1, x2):
+    return x1.astype(np.float32)
+
+@register.register_method(output_names=["y"])
+def add_cast(x1, x2):
+    y = register.call_servable(x1, x2)    
+    y, y2 = register.call_postprocess(add_trans_datatype, y, x2)
+    return y
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    worker.start_servable_in_master(base.servable_dir, base.servable_name)
+    master.start_restful_server("0.0.0.0", 5500)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    result = post_restful("localhost", 5500, base.servable_name, "add_cast", instances)
+    assert "Postprocess Failed" in str(result["instances"][0]["error_msg"])
+
+
+@serving_test
+def test_restful_request_worker_alone_outputs_count_not_match_failed():
+    base = ServingTestBase()
+    servable_content = servable_config_import
+    servable_content += servable_config_declare_servable
+    servable_content += r"""
+def add_trans_datatype(x1, x2):
+    return x1.astype(np.float32)
+
+@register.register_method(output_names=["y"])
+def add_cast(x1, x2):
+    y = register.call_servable(x1, x2)    
+    y, y2 = register.call_postprocess(add_trans_datatype, y, x2)
+    return y
+"""
+    base.init_servable_with_servable_config(1, servable_content)
+    master.start_master_server(master_port=7600)
+    master.start_restful_server("0.0.0.0", 5500)
+    worker.start_servable(base.servable_dir, base.servable_name, master_port=7600, worker_port=6600)
+    # Client
+    instance_count = 3
+    instances, _ = create_multi_instances_fp32(instance_count)
+    result = post_restful("localhost", 5500, base.servable_name + "_error", "add_common", instances)
+    assert "servable is not available" in str(result["error_msg"])