/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

#include <dmlc/logging.h>
#include <gtest/gtest.h>
#include <tvm/operation.h>

TEST(Expr, Basic) {
  using namespace air;
  Var x("x");
  auto z = max(x + 1 + 2, 100);
  NodeRef tmp = z;
  Expr zz = Downcast<Expr>(tmp);
  std::ostringstream os;
  os << z;
  CHECK(zz.same_as(z));
  CHECK(os.str() == "max(((x + 1) + 2), 100)");
}


TEST(ExprNodeRef, Basic) {
  using namespace air;
  Var x("x");
  Expr z = max(x + 1 + 2, 100);
  const ir::Max* op = z.as<ir::Max>();
  CHECK(GetRef<NodeRef>(op).same_as(z));
}


int main(int argc, char ** argv) {
  testing::InitGoogleTest(&argc, argv);
  testing::FLAGS_gtest_death_test_style = "threadsafe";
  return RUN_ALL_TESTS();
}
