diff --git a/.github/workflows/android-armv7-cpu.yml b/.github/workflows/android-armv7-cpu.yml
index 345881a6e..c830208d9 100644
--- a/.github/workflows/android-armv7-cpu.yml
+++ b/.github/workflows/android-armv7-cpu.yml
@@ -6,7 +6,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_ABI="armeabi-v7a" -DANDROID_ARM_NEON=ON -DANDROID_PLATFORM=android-14 ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_ABI="armeabi-v7a" -DANDROID_ARM_NEON=ON -DANDROID_PLATFORM=android-14 -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
 
@@ -15,6 +15,6 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_ABI="armeabi-v7a" -DANDROID_ARM_NEON=OFF -DANDROID_PLATFORM=android-14 ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_ABI="armeabi-v7a" -DANDROID_ARM_NEON=OFF -DANDROID_PLATFORM=android-14 -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
diff --git a/.github/workflows/android-armv7-gpu.yml b/.github/workflows/android-armv7-gpu.yml
index 23131fbce..609610949 100644
--- a/.github/workflows/android-armv7-gpu.yml
+++ b/.github/workflows/android-armv7-gpu.yml
@@ -21,6 +21,6 @@ jobs:
         rm -rf 1.1.114.0/source 1.1.114.0/samples
         find 1.1.114.0 -type f | grep -v -E 'vulkan|glslang' | xargs rm
     - name: configure
-      run: export PATH=`pwd`/1.1.114.0/x86_64/bin:$PATH && mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_ABI="armeabi-v7a" -DANDROID_ARM_NEON=ON -DANDROID_PLATFORM=android-24 -DNCNN_VULKAN=ON ..
+      run: export PATH=`pwd`/1.1.114.0/x86_64/bin:$PATH && mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_ABI="armeabi-v7a" -DANDROID_ARM_NEON=ON -DANDROID_PLATFORM=android-24 -DNCNN_VULKAN=ON -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
diff --git a/.github/workflows/android-armv8-cpu.yml b/.github/workflows/android-armv8-cpu.yml
index be3ca1d84..ac29a012e 100644
--- a/.github/workflows/android-armv8-cpu.yml
+++ b/.github/workflows/android-armv8-cpu.yml
@@ -6,6 +6,6 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_ABI="arm64-v8a" -DANDROID_PLATFORM=android-21 ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_ABI="arm64-v8a" -DANDROID_PLATFORM=android-21 -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
diff --git a/.github/workflows/android-armv8-gpu.yml b/.github/workflows/android-armv8-gpu.yml
index a2e69a4dc..9b1defcf4 100644
--- a/.github/workflows/android-armv8-gpu.yml
+++ b/.github/workflows/android-armv8-gpu.yml
@@ -21,6 +21,6 @@ jobs:
         rm -rf 1.1.114.0/source 1.1.114.0/samples
         find 1.1.114.0 -type f | grep -v -E 'vulkan|glslang' | xargs rm
     - name: configure
-      run: export PATH=`pwd`/1.1.114.0/x86_64/bin:$PATH && mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_ABI="arm64-v8a" -DANDROID_PLATFORM=android-24 -DNCNN_VULKAN=ON ..
+      run: export PATH=`pwd`/1.1.114.0/x86_64/bin:$PATH && mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_ABI="arm64-v8a" -DANDROID_PLATFORM=android-24 -DNCNN_VULKAN=ON -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
diff --git a/.github/workflows/android-x64-cpu.yml b/.github/workflows/android-x64-cpu.yml
index 8586f8a35..e782a1cbc 100644
--- a/.github/workflows/android-x64-cpu.yml
+++ b/.github/workflows/android-x64-cpu.yml
@@ -6,6 +6,6 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_ABI="x86_64" -DANDROID_PLATFORM=android-21 ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_ABI="x86_64" -DANDROID_PLATFORM=android-21 -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
diff --git a/.github/workflows/android-x64-gpu.yml b/.github/workflows/android-x64-gpu.yml
index ec9f36a12..c60ae896e 100644
--- a/.github/workflows/android-x64-gpu.yml
+++ b/.github/workflows/android-x64-gpu.yml
@@ -21,6 +21,6 @@ jobs:
         rm -rf 1.1.114.0/source 1.1.114.0/samples
         find 1.1.114.0 -type f | grep -v -E 'vulkan|glslang' | xargs rm
     - name: configure
-      run: export PATH=`pwd`/1.1.114.0/x86_64/bin:$PATH && mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_ABI="x86_64" -DANDROID_PLATFORM=android-24 -DNCNN_VULKAN=ON ..
+      run: export PATH=`pwd`/1.1.114.0/x86_64/bin:$PATH && mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_ABI="x86_64" -DANDROID_PLATFORM=android-24 -DNCNN_VULKAN=ON -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
diff --git a/.github/workflows/android-x86-cpu.yml b/.github/workflows/android-x86-cpu.yml
index 17efbd8da..1d3cc982d 100644
--- a/.github/workflows/android-x86-cpu.yml
+++ b/.github/workflows/android-x86-cpu.yml
@@ -6,6 +6,6 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_ABI="x86"  -DANDROID_PLATFORM=android-14 ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_ABI="x86"  -DANDROID_PLATFORM=android-14 -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
diff --git a/.github/workflows/android-x86-gpu.yml b/.github/workflows/android-x86-gpu.yml
index 347cc18f0..26d0358f2 100644
--- a/.github/workflows/android-x86-gpu.yml
+++ b/.github/workflows/android-x86-gpu.yml
@@ -21,6 +21,6 @@ jobs:
         rm -rf 1.1.114.0/source 1.1.114.0/samples
         find 1.1.114.0 -type f | grep -v -E 'vulkan|glslang' | xargs rm
     - name: configure
-      run: export PATH=`pwd`/1.1.114.0/x86_64/bin:$PATH && mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_ABI="x86" -DANDROID_PLATFORM=android-24 -DNCNN_VULKAN=ON ..
+      run: export PATH=`pwd`/1.1.114.0/x86_64/bin:$PATH && mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_ABI="x86" -DANDROID_PLATFORM=android-24 -DNCNN_VULKAN=ON -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
diff --git a/.github/workflows/elf-riscv32-cpu-gcc.yml b/.github/workflows/elf-riscv32-cpu-gcc.yml
index 16b46607f..e91ec7efc 100644
--- a/.github/workflows/elf-riscv32-cpu-gcc.yml
+++ b/.github/workflows/elf-riscv32-cpu-gcc.yml
@@ -86,7 +86,7 @@ jobs:
       run: find $GITHUB_WORKSPACE/rv32imc-install -type f | xargs -i strip -g {} || true
 
     - name: configure
-      run: export RISCV_ROOT_PATH=$GITHUB_WORKSPACE/rv32imc-install && mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/riscv32-unknown-elf.toolchain.cmake -DNCNN_THREADS=OFF -DNCNN_OPENMP=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: export RISCV_ROOT_PATH=$GITHUB_WORKSPACE/rv32imc-install && mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/riscv32-unknown-elf.toolchain.cmake -DNCNN_THREADS=OFF -DNCNN_OPENMP=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
 
diff --git a/.github/workflows/elf-riscv64-cpu-gcc.yml b/.github/workflows/elf-riscv64-cpu-gcc.yml
index 7551ad862..5d11f8051 100644
--- a/.github/workflows/elf-riscv64-cpu-gcc.yml
+++ b/.github/workflows/elf-riscv64-cpu-gcc.yml
@@ -87,7 +87,7 @@ jobs:
       run: find $GITHUB_WORKSPACE/rv64gcv-install -type f | xargs -i strip -g {} || true
 
     - name: configure
-      run: export RISCV_ROOT_PATH=$GITHUB_WORKSPACE/rv64gcv-install && mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/riscv64-unknown-elf.toolchain.cmake -DNCNN_THREADS=OFF -DNCNN_OPENMP=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: export RISCV_ROOT_PATH=$GITHUB_WORKSPACE/rv64gcv-install && mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/riscv64-unknown-elf.toolchain.cmake -DNCNN_THREADS=OFF -DNCNN_OPENMP=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
     - name: test
@@ -184,7 +184,7 @@ jobs:
       run: find $GITHUB_WORKSPACE/rv64gc-install -type f | xargs -i strip -g {} || true
 
     - name: configure
-      run: export RISCV_ROOT_PATH=$GITHUB_WORKSPACE/rv64gc-install && mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/riscv64-unknown-elf.toolchain.cmake -DNCNN_THREADS=OFF -DNCNN_OPENMP=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: export RISCV_ROOT_PATH=$GITHUB_WORKSPACE/rv64gc-install && mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/riscv64-unknown-elf.toolchain.cmake -DNCNN_THREADS=OFF -DNCNN_OPENMP=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
     - name: test
diff --git a/.github/workflows/ios-64bit-gpu.yml b/.github/workflows/ios-64bit-gpu.yml
index 6eb6a7dc8..cf27deffa 100644
--- a/.github/workflows/ios-64bit-gpu.yml
+++ b/.github/workflows/ios-64bit-gpu.yml
@@ -21,6 +21,6 @@ jobs:
         rm -rf vulkansdk-macos-1.1.114.0/Applications
         find vulkansdk-macos-1.1.114.0 -type f | grep -v -E 'vulkan|glslang|MoltenVK' | xargs rm
     - name: configure
-      run: export VULKAN_SDK=`pwd`/vulkansdk-macos-1.1.114.0/macOS && mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DIOS_PLATFORM=OS64 -DVulkan_INCLUDE_DIR=`pwd`/../vulkansdk-macos-1.1.114.0/MoltenVK/include -DVulkan_LIBRARY=`pwd`/../vulkansdk-macos-1.1.114.0/MoltenVK/iOS/dynamic/libMoltenVK.dylib -DNCNN_VULKAN=ON ..
+      run: export VULKAN_SDK=`pwd`/vulkansdk-macos-1.1.114.0/macOS && mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DIOS_PLATFORM=OS64 -DVulkan_INCLUDE_DIR=`pwd`/../vulkansdk-macos-1.1.114.0/MoltenVK/include -DVulkan_LIBRARY=`pwd`/../vulkansdk-macos-1.1.114.0/MoltenVK/iOS/dynamic/libMoltenVK.dylib -DNCNN_VULKAN=ON -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
diff --git a/.github/workflows/ios-cpu.yml b/.github/workflows/ios-cpu.yml
index 0a46a6049..17cc8bc3a 100644
--- a/.github/workflows/ios-cpu.yml
+++ b/.github/workflows/ios-cpu.yml
@@ -6,6 +6,6 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DIOS_PLATFORM=OS ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DIOS_PLATFORM=OS -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
diff --git a/.github/workflows/ios-simulator.yml b/.github/workflows/ios-simulator.yml
index 897e61416..03f6ca560 100644
--- a/.github/workflows/ios-simulator.yml
+++ b/.github/workflows/ios-simulator.yml
@@ -6,6 +6,6 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DIOS_PLATFORM=SIMULATOR ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DIOS_PLATFORM=SIMULATOR -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
diff --git a/.github/workflows/linux-aarch64-cpu-gcc.yml b/.github/workflows/linux-aarch64-cpu-gcc.yml
index 8789fae2b..48be46c80 100644
--- a/.github/workflows/linux-aarch64-cpu-gcc.yml
+++ b/.github/workflows/linux-aarch64-cpu-gcc.yml
@@ -34,7 +34,7 @@ jobs:
         sudo apt-get install g++-aarch64-linux-gnu
 
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/aarch64-linux-gnu.toolchain.cmake -DNCNN_ARM82=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/aarch64-linux-gnu.toolchain.cmake -DNCNN_ARM82=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
 
@@ -77,7 +77,7 @@ jobs:
         sudo apt-get install g++-aarch64-linux-gnu
 
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/aarch64-linux-gnu.toolchain.cmake -DNCNN_ARM82=ON -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/aarch64-linux-gnu.toolchain.cmake -DNCNN_ARM82=ON -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
 
diff --git a/.github/workflows/linux-arm-cpu-gcc.yml b/.github/workflows/linux-arm-cpu-gcc.yml
index c11e08052..5cc6931ab 100644
--- a/.github/workflows/linux-arm-cpu-gcc.yml
+++ b/.github/workflows/linux-arm-cpu-gcc.yml
@@ -34,7 +34,7 @@ jobs:
         sudo apt-get install g++-arm-linux-gnueabi
 
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/arm-linux-gnueabi.toolchain.cmake -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/arm-linux-gnueabi.toolchain.cmake -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
 
@@ -77,7 +77,7 @@ jobs:
         sudo apt-get install g++-arm-linux-gnueabihf
 
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/arm-linux-gnueabihf.toolchain.cmake -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/arm-linux-gnueabihf.toolchain.cmake -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
 
diff --git a/.github/workflows/linux-mips-cpu-gcc.yml b/.github/workflows/linux-mips-cpu-gcc.yml
index 73cbb2a6f..36fdc08fe 100644
--- a/.github/workflows/linux-mips-cpu-gcc.yml
+++ b/.github/workflows/linux-mips-cpu-gcc.yml
@@ -34,7 +34,7 @@ jobs:
         sudo apt-get install g++-mipsel-linux-gnu
 
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/mipsel-linux-gnu.toolchain.cmake -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/mipsel-linux-gnu.toolchain.cmake -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
 
@@ -77,7 +77,7 @@ jobs:
         sudo apt-get install g++-mipsisa32r6el-linux-gnu
 
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/mipsisa32r6el-linux-gnu.toolchain.cmake -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/mipsisa32r6el-linux-gnu.toolchain.cmake -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
 
diff --git a/.github/workflows/linux-mips64-cpu-gcc.yml b/.github/workflows/linux-mips64-cpu-gcc.yml
index ade9bfdba..bfb070b1f 100644
--- a/.github/workflows/linux-mips64-cpu-gcc.yml
+++ b/.github/workflows/linux-mips64-cpu-gcc.yml
@@ -34,7 +34,7 @@ jobs:
         sudo apt-get install g++-mips64el-linux-gnuabi64
 
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/mips64el-linux-gnuabi64.toolchain.cmake -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/mips64el-linux-gnuabi64.toolchain.cmake -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
 
@@ -77,7 +77,7 @@ jobs:
         sudo apt-get install g++-mipsisa64r6el-linux-gnuabi64
 
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/mipsisa64r6el-linux-gnuabi64.toolchain.cmake -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/mipsisa64r6el-linux-gnuabi64.toolchain.cmake -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
 
diff --git a/.github/workflows/linux-ppc64-cpu-gcc.yml b/.github/workflows/linux-ppc64-cpu-gcc.yml
index 23a7a1cb0..9bebc1683 100644
--- a/.github/workflows/linux-ppc64-cpu-gcc.yml
+++ b/.github/workflows/linux-ppc64-cpu-gcc.yml
@@ -34,7 +34,7 @@ jobs:
         sudo apt-get install g++-powerpc64le-linux-gnu
 
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/powerpc64le-linux-gnu.toolchain.cmake -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/powerpc64le-linux-gnu.toolchain.cmake -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
 
diff --git a/.github/workflows/linux-riscv64-cpu-gcc.yml b/.github/workflows/linux-riscv64-cpu-gcc.yml
index 8c7088645..be13047e4 100644
--- a/.github/workflows/linux-riscv64-cpu-gcc.yml
+++ b/.github/workflows/linux-riscv64-cpu-gcc.yml
@@ -34,7 +34,7 @@ jobs:
         sudo apt-get install g++-riscv64-linux-gnu
 
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/riscv64-linux-gnu.toolchain.cmake -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/riscv64-linux-gnu.toolchain.cmake -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
 
diff --git a/.github/workflows/linux-x64-cpu-clang.yml b/.github/workflows/linux-x64-cpu-clang.yml
index 265e5aed3..ac5732b4d 100644
--- a/.github/workflows/linux-x64-cpu-clang.yml
+++ b/.github/workflows/linux-x64-cpu-clang.yml
@@ -13,7 +13,7 @@ jobs:
       env:
         CC: clang
         CXX: clang++
-      run: mkdir build && cd build && cmake ..
+      run: mkdir build && cd build && cmake -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
     - name: test
@@ -31,7 +31,7 @@ jobs:
       env:
         CC: clang
         CXX: clang++
-      run: mkdir build && cd build && cmake -DNCNN_AVX2=ON ..
+      run: mkdir build && cd build && cmake -DNCNN_AVX2=ON -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
     - name: test
diff --git a/.github/workflows/linux-x64-cpu-gcc.yml b/.github/workflows/linux-x64-cpu-gcc.yml
index 983b5e2c1..74e626a87 100644
--- a/.github/workflows/linux-x64-cpu-gcc.yml
+++ b/.github/workflows/linux-x64-cpu-gcc.yml
@@ -10,7 +10,7 @@ jobs:
     - name: protobuf
       run: sudo apt-get install libprotobuf-dev protobuf-compiler libopencv-dev
     - name: configure
-      run: mkdir build && cd build && cmake ..
+      run: mkdir build && cd build && cmake -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
     - name: test
@@ -25,7 +25,7 @@ jobs:
     - name: protobuf
       run: sudo apt-get install libprotobuf-dev protobuf-compiler libopencv-dev
     - name: configure
-      run: mkdir build && cd build && cmake -DNCNN_AVX2=ON ..
+      run: mkdir build && cd build && cmake -DNCNN_AVX2=ON -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
     - name: test
diff --git a/.github/workflows/linux-x64-gpu-clang.yml b/.github/workflows/linux-x64-gpu-clang.yml
index bfde44953..a6502e4f1 100644
--- a/.github/workflows/linux-x64-gpu-clang.yml
+++ b/.github/workflows/linux-x64-gpu-clang.yml
@@ -47,7 +47,7 @@ jobs:
       run: |
         cd swiftshader
         mkdir -p build; cd build
-        cmake -DCMAKE_INSTALL_PREFIX=install -DSWIFTSHADER_BUILD_EGL=FALSE -DSWIFTSHADER_BUILD_GLESv2=FALSE -DSWIFTSHADER_BUILD_GLES_CM=FALSE -DSWIFTSHADER_BUILD_VULKAN=TRUE -DSWIFTSHADER_BUILD_PVR=FALSE -DSWIFTSHADER_BUILD_TESTS=FALSE -DSWIFTSHADER_ENABLE_ASTC=FALSE -DSWIFTSHADER_WARNINGS_AS_ERRORS=FALSE -DREACTOR_BACKEND=Subzero -DREACTOR_DEFAULT_OPT_LEVEL=Default -DCMAKE_BUILD_TYPE=Release ..
+        cmake -DCMAKE_INSTALL_PREFIX=install -DSWIFTSHADER_BUILD_EGL=FALSE -DSWIFTSHADER_BUILD_GLESv2=FALSE -DSWIFTSHADER_BUILD_GLES_CM=FALSE -DSWIFTSHADER_BUILD_VULKAN=TRUE -DSWIFTSHADER_BUILD_PVR=FALSE -DSWIFTSHADER_BUILD_TESTS=FALSE -DSWIFTSHADER_ENABLE_ASTC=FALSE -DSWIFTSHADER_WARNINGS_AS_ERRORS=FALSE -DREACTOR_BACKEND=Subzero -DREACTOR_DEFAULT_OPT_LEVEL=Default -DCMAKE_BUILD_TYPE=Release -DNCNN_BUILD_TESTS=ON ..
         cmake --build . -j 2
         mkdir $GITHUB_WORKSPACE/swiftshader-install
         cp Linux/* $GITHUB_WORKSPACE/swiftshader-install
@@ -55,7 +55,7 @@ jobs:
       env:
         CC: clang
         CXX: clang++
-      run: export VULKAN_SDK=`pwd`/1.1.114.0/x86_64 && mkdir build && cd build && cmake -DNCNN_VULKAN=ON ..
+      run: export VULKAN_SDK=`pwd`/1.1.114.0/x86_64 && mkdir build && cd build && cmake -DNCNN_VULKAN=ON -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
     - name: test
diff --git a/.github/workflows/linux-x64-gpu-gcc.yml b/.github/workflows/linux-x64-gpu-gcc.yml
index a06364c31..f144f9850 100644
--- a/.github/workflows/linux-x64-gpu-gcc.yml
+++ b/.github/workflows/linux-x64-gpu-gcc.yml
@@ -47,12 +47,12 @@ jobs:
       run: |
         cd swiftshader
         mkdir -p build; cd build
-        cmake -DCMAKE_INSTALL_PREFIX=install -DSWIFTSHADER_BUILD_EGL=FALSE -DSWIFTSHADER_BUILD_GLESv2=FALSE -DSWIFTSHADER_BUILD_GLES_CM=FALSE -DSWIFTSHADER_BUILD_VULKAN=TRUE -DSWIFTSHADER_BUILD_PVR=FALSE -DSWIFTSHADER_BUILD_TESTS=FALSE -DSWIFTSHADER_ENABLE_ASTC=FALSE -DSWIFTSHADER_WARNINGS_AS_ERRORS=FALSE -DREACTOR_BACKEND=Subzero -DREACTOR_DEFAULT_OPT_LEVEL=Default -DCMAKE_BUILD_TYPE=Release ..
+        cmake -DCMAKE_INSTALL_PREFIX=install -DSWIFTSHADER_BUILD_EGL=FALSE -DSWIFTSHADER_BUILD_GLESv2=FALSE -DSWIFTSHADER_BUILD_GLES_CM=FALSE -DSWIFTSHADER_BUILD_VULKAN=TRUE -DSWIFTSHADER_BUILD_PVR=FALSE -DSWIFTSHADER_BUILD_TESTS=FALSE -DSWIFTSHADER_ENABLE_ASTC=FALSE -DSWIFTSHADER_WARNINGS_AS_ERRORS=FALSE -DREACTOR_BACKEND=Subzero -DREACTOR_DEFAULT_OPT_LEVEL=Default -DCMAKE_BUILD_TYPE=Release -DNCNN_BUILD_TESTS=ON ..
         cmake --build . -j 2
         mkdir $GITHUB_WORKSPACE/swiftshader-install
         cp Linux/* $GITHUB_WORKSPACE/swiftshader-install
     - name: configure
-      run: export VULKAN_SDK=`pwd`/1.1.114.0/x86_64 && mkdir build && cd build && cmake -DNCNN_VULKAN=ON ..
+      run: export VULKAN_SDK=`pwd`/1.1.114.0/x86_64 && mkdir build && cd build && cmake -DNCNN_VULKAN=ON -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
     - name: test
diff --git a/.github/workflows/macos-x64-cpu.yml b/.github/workflows/macos-x64-cpu.yml
index 59c0b14b5..c91fc20ea 100644
--- a/.github/workflows/macos-x64-cpu.yml
+++ b/.github/workflows/macos-x64-cpu.yml
@@ -8,7 +8,7 @@ jobs:
     - name: protobuf
       run: brew install protobuf opencv3
     - name: configure
-      run: mkdir build && cd build && cmake ..
+      run: mkdir build && cd build && cmake -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
     - name: test
diff --git a/.github/workflows/macos-x64-gpu.yml b/.github/workflows/macos-x64-gpu.yml
index 55b099102..13b574743 100644
--- a/.github/workflows/macos-x64-gpu.yml
+++ b/.github/workflows/macos-x64-gpu.yml
@@ -45,12 +45,12 @@ jobs:
       run: |
         cd swiftshader
         mkdir -p build; cd build
-        cmake -DCMAKE_INSTALL_PREFIX=install -DSWIFTSHADER_BUILD_EGL=FALSE -DSWIFTSHADER_BUILD_GLESv2=FALSE -DSWIFTSHADER_BUILD_GLES_CM=FALSE -DSWIFTSHADER_BUILD_VULKAN=TRUE -DSWIFTSHADER_BUILD_PVR=FALSE -DSWIFTSHADER_BUILD_TESTS=FALSE -DSWIFTSHADER_ENABLE_ASTC=FALSE -DSWIFTSHADER_WARNINGS_AS_ERRORS=FALSE -DREACTOR_BACKEND=Subzero -DREACTOR_DEFAULT_OPT_LEVEL=Default -DCMAKE_BUILD_TYPE=Release ..
+        cmake -DCMAKE_INSTALL_PREFIX=install -DSWIFTSHADER_BUILD_EGL=FALSE -DSWIFTSHADER_BUILD_GLESv2=FALSE -DSWIFTSHADER_BUILD_GLES_CM=FALSE -DSWIFTSHADER_BUILD_VULKAN=TRUE -DSWIFTSHADER_BUILD_PVR=FALSE -DSWIFTSHADER_BUILD_TESTS=FALSE -DSWIFTSHADER_ENABLE_ASTC=FALSE -DSWIFTSHADER_WARNINGS_AS_ERRORS=FALSE -DREACTOR_BACKEND=Subzero -DREACTOR_DEFAULT_OPT_LEVEL=Default -DCMAKE_BUILD_TYPE=Release -DNCNN_BUILD_TESTS=ON ..
         cmake --build . -j 2
         mkdir $GITHUB_WORKSPACE/swiftshader-install
         cp Darwin/* $GITHUB_WORKSPACE/swiftshader-install
     - name: configure
-      run: export VULKAN_SDK=`pwd`/vulkansdk-macos-1.1.114.0/macOS && mkdir build && cd build && cmake -DNCNN_VULKAN=ON ..
+      run: export VULKAN_SDK=`pwd`/vulkansdk-macos-1.1.114.0/macOS && mkdir build && cd build && cmake -DNCNN_VULKAN=ON -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
     - name: test
diff --git a/.github/workflows/test-coverage.yml b/.github/workflows/test-coverage.yml
index bf784970b..21059beee 100644
--- a/.github/workflows/test-coverage.yml
+++ b/.github/workflows/test-coverage.yml
@@ -45,12 +45,12 @@ jobs:
       run: |
         cd swiftshader
         mkdir -p build; cd build
-        cmake -DCMAKE_INSTALL_PREFIX=install -DSWIFTSHADER_BUILD_EGL=FALSE -DSWIFTSHADER_BUILD_GLESv2=FALSE -DSWIFTSHADER_BUILD_GLES_CM=FALSE -DSWIFTSHADER_BUILD_VULKAN=TRUE -DSWIFTSHADER_BUILD_PVR=FALSE -DSWIFTSHADER_BUILD_TESTS=FALSE -DSWIFTSHADER_ENABLE_ASTC=FALSE -DSWIFTSHADER_WARNINGS_AS_ERRORS=FALSE -DREACTOR_BACKEND=Subzero -DREACTOR_DEFAULT_OPT_LEVEL=Default -DCMAKE_BUILD_TYPE=Release ..
+        cmake -DCMAKE_INSTALL_PREFIX=install -DSWIFTSHADER_BUILD_EGL=FALSE -DSWIFTSHADER_BUILD_GLESv2=FALSE -DSWIFTSHADER_BUILD_GLES_CM=FALSE -DSWIFTSHADER_BUILD_VULKAN=TRUE -DSWIFTSHADER_BUILD_PVR=FALSE -DSWIFTSHADER_BUILD_TESTS=FALSE -DSWIFTSHADER_ENABLE_ASTC=FALSE -DSWIFTSHADER_WARNINGS_AS_ERRORS=FALSE -DREACTOR_BACKEND=Subzero -DREACTOR_DEFAULT_OPT_LEVEL=Default -DCMAKE_BUILD_TYPE=Release -DNCNN_BUILD_TESTS=ON ..
         cmake --build . -j 2
         mkdir $GITHUB_WORKSPACE/swiftshader-install
         cp Linux/* $GITHUB_WORKSPACE/swiftshader-install
     - name: configure
-      run: export VULKAN_SDK=`pwd`/1.1.114.0/x86_64 && mkdir build && cd build && cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_COVERAGE=ON -DNCNN_RUNTIME_CPU=OFF -DNCNN_AVX2=ON -DNCNN_OPENMP=OFF -DNCNN_VULKAN=ON -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: export VULKAN_SDK=`pwd`/1.1.114.0/x86_64 && mkdir build && cd build && cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_COVERAGE=ON -DNCNN_RUNTIME_CPU=OFF -DNCNN_AVX2=ON -DNCNN_OPENMP=OFF -DNCNN_VULKAN=ON -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
     - name: test
@@ -76,7 +76,7 @@ jobs:
     - name: lcov
       run: sudo apt-get install lcov
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_COVERAGE=ON -DNCNN_RUNTIME_CPU=OFF -DNCNN_AVX2=OFF -DNCNN_OPENMP=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: mkdir build && cd build && cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_COVERAGE=ON -DNCNN_RUNTIME_CPU=OFF -DNCNN_AVX2=OFF -DNCNN_OPENMP=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
     - name: test
@@ -100,7 +100,7 @@ jobs:
     - name: lcov
       run: sudo apt-get install lcov
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_COVERAGE=ON -DNCNN_RUNTIME_CPU=ON -DNCNN_AVX2=ON -DNCNN_OPENMP=ON -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: mkdir build && cd build && cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_COVERAGE=ON -DNCNN_RUNTIME_CPU=ON -DNCNN_AVX2=ON -DNCNN_OPENMP=ON -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
     - name: test
@@ -152,7 +152,7 @@ jobs:
         sudo apt-get install g++-aarch64-linux-gnu
 
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/aarch64-linux-gnu.toolchain.cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_COVERAGE=ON -DNCNN_RUNTIME_CPU=OFF -DNCNN_ARM82=ON -DNCNN_OPENMP=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/aarch64-linux-gnu.toolchain.cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_COVERAGE=ON -DNCNN_RUNTIME_CPU=OFF -DNCNN_ARM82=ON -DNCNN_OPENMP=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
 
@@ -209,7 +209,7 @@ jobs:
         sudo apt-get install g++-aarch64-linux-gnu
 
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/aarch64-linux-gnu.toolchain.cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_COVERAGE=ON -DNCNN_RUNTIME_CPU=OFF -DNCNN_ARM82=ON -DNCNN_OPENMP=ON -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/aarch64-linux-gnu.toolchain.cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_COVERAGE=ON -DNCNN_RUNTIME_CPU=OFF -DNCNN_ARM82=ON -DNCNN_OPENMP=ON -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
 
@@ -266,7 +266,7 @@ jobs:
         sudo apt-get install g++-mipsisa32r6el-linux-gnu
 
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/mipsisa32r6el-linux-gnu.toolchain.cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_COVERAGE=ON -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/mipsisa32r6el-linux-gnu.toolchain.cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_COVERAGE=ON -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
 
@@ -323,7 +323,7 @@ jobs:
         sudo apt-get install g++-mipsisa64r6el-linux-gnuabi64
 
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/mipsisa64r6el-linux-gnuabi64.toolchain.cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_COVERAGE=ON -DNCNN_OPENMP=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+      run: mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/mipsisa64r6el-linux-gnuabi64.toolchain.cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_COVERAGE=ON -DNCNN_OPENMP=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
 
diff --git a/.github/workflows/web-assembly.yml b/.github/workflows/web-assembly.yml
index 47f5329c8..bdc73a969 100644
--- a/.github/workflows/web-assembly.yml
+++ b/.github/workflows/web-assembly.yml
@@ -12,6 +12,6 @@ jobs:
         ./emsdk install latest
         ./emsdk activate latest
     - name: configure
-      run: source emsdk/emsdk_env.sh && mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../emsdk/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake ..
+      run: source emsdk/emsdk_env.sh && mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../emsdk/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build -j 2
diff --git a/.github/workflows/windows-x64-cpu-vs2019.yml b/.github/workflows/windows-x64-cpu-vs2019.yml
index 11b5f40f2..859d3703b 100644
--- a/.github/workflows/windows-x64-cpu-vs2019.yml
+++ b/.github/workflows/windows-x64-cpu-vs2019.yml
@@ -17,13 +17,13 @@ jobs:
         Invoke-WebRequest -Uri https://github.com/protocolbuffers/protobuf/archive/v3.11.2.zip -OutFile protobuf-3.11.2.zip
         7z x ./protobuf-3.11.2.zip
         cd protobuf-3.11.2
-        mkdir build-vs2019; cd build-vs2019; cmake -DCMAKE_INSTALL_PREFIX="$env:GITHUB_WORKSPACE\protobuf-install" -Dprotobuf_BUILD_TESTS=OFF -Dprotobuf_MSVC_STATIC_RUNTIME=OFF ../cmake
+        mkdir build-vs2019; cd build-vs2019; cmake -DCMAKE_INSTALL_PREFIX="$env:GITHUB_WORKSPACE\protobuf-install" -Dprotobuf_BUILD_TESTS=OFF -Dprotobuf_MSVC_STATIC_RUNTIME=OFF -DNCNN_BUILD_TESTS=ON ../cmake
         cmake --build . --config Release -j 2
         cmake --build . --config Release --target install
     - name: configure
       run: |
         mkdir build; cd build
-        cmake -DProtobuf_INCLUDE_DIR="$env:GITHUB_WORKSPACE\protobuf-install\include" -DProtobuf_LIBRARIES="$env:GITHUB_WORKSPACE\protobuf-install\lib\libprotobuf.lib" -DProtobuf_PROTOC_EXECUTABLE="$env:GITHUB_WORKSPACE\protobuf-install\bin\protoc.exe" -DNCNN_RUNTIME_CPU=OFF -DNCNN_AVX2=OFF ..
+        cmake -DProtobuf_INCLUDE_DIR="$env:GITHUB_WORKSPACE\protobuf-install\include" -DProtobuf_LIBRARIES="$env:GITHUB_WORKSPACE\protobuf-install\lib\libprotobuf.lib" -DProtobuf_PROTOC_EXECUTABLE="$env:GITHUB_WORKSPACE\protobuf-install\bin\protoc.exe" -DNCNN_RUNTIME_CPU=OFF -DNCNN_AVX2=OFF -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build --config Release -j 2
     - name: test
@@ -45,13 +45,13 @@ jobs:
         Invoke-WebRequest -Uri https://github.com/protocolbuffers/protobuf/archive/v3.11.2.zip -OutFile protobuf-3.11.2.zip
         7z x ./protobuf-3.11.2.zip
         cd protobuf-3.11.2
-        mkdir build-vs2019; cd build-vs2019; cmake -DCMAKE_INSTALL_PREFIX="$env:GITHUB_WORKSPACE\protobuf-install" -Dprotobuf_BUILD_TESTS=OFF -Dprotobuf_MSVC_STATIC_RUNTIME=OFF ../cmake
+        mkdir build-vs2019; cd build-vs2019; cmake -DCMAKE_INSTALL_PREFIX="$env:GITHUB_WORKSPACE\protobuf-install" -Dprotobuf_BUILD_TESTS=OFF -Dprotobuf_MSVC_STATIC_RUNTIME=OFF -DNCNN_BUILD_TESTS=ON ../cmake
         cmake --build . --config Release -j 2
         cmake --build . --config Release --target install
     - name: configure
       run: |
         mkdir build; cd build
-        cmake -DProtobuf_INCLUDE_DIR="$env:GITHUB_WORKSPACE\protobuf-install\include" -DProtobuf_LIBRARIES="$env:GITHUB_WORKSPACE\protobuf-install\lib\libprotobuf.lib" -DProtobuf_PROTOC_EXECUTABLE="$env:GITHUB_WORKSPACE\protobuf-install\bin\protoc.exe" -DNCNN_RUNTIME_CPU=OFF -DNCNN_AVX2=ON ..
+        cmake -DProtobuf_INCLUDE_DIR="$env:GITHUB_WORKSPACE\protobuf-install\include" -DProtobuf_LIBRARIES="$env:GITHUB_WORKSPACE\protobuf-install\lib\libprotobuf.lib" -DProtobuf_PROTOC_EXECUTABLE="$env:GITHUB_WORKSPACE\protobuf-install\bin\protoc.exe" -DNCNN_RUNTIME_CPU=OFF -DNCNN_AVX2=ON -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build --config Release -j 2
     - name: test
diff --git a/.github/workflows/windows-x64-gpu-vs2019.yml b/.github/workflows/windows-x64-gpu-vs2019.yml
index 0a54abc80..736f97d32 100644
--- a/.github/workflows/windows-x64-gpu-vs2019.yml
+++ b/.github/workflows/windows-x64-gpu-vs2019.yml
@@ -19,7 +19,7 @@ jobs:
         Invoke-WebRequest -Uri https://github.com/protocolbuffers/protobuf/archive/v3.11.2.zip -OutFile protobuf-3.11.2.zip
         7z x ./protobuf-3.11.2.zip
         cd protobuf-3.11.2
-        mkdir build-vs2019; cd build-vs2019; cmake -DCMAKE_INSTALL_PREFIX="$env:GITHUB_WORKSPACE\protobuf-install" -Dprotobuf_BUILD_TESTS=OFF -Dprotobuf_MSVC_STATIC_RUNTIME=OFF ../cmake
+        mkdir build-vs2019; cd build-vs2019; cmake -DCMAKE_INSTALL_PREFIX="$env:GITHUB_WORKSPACE\protobuf-install" -Dprotobuf_BUILD_TESTS=OFF -Dprotobuf_MSVC_STATIC_RUNTIME=OFF -DNCNN_BUILD_TESTS=ON ../cmake
         cmake --build . --config Release -j 2
         cmake --build . --config Release --target install
     - name: cache-vulkansdk
@@ -57,7 +57,7 @@ jobs:
       run: |
         cd swiftshader
         mkdir build-vs2019; cd build-vs2019
-        cmake -DCMAKE_INSTALL_PREFIX=install -DSWIFTSHADER_BUILD_EGL=FALSE -DSWIFTSHADER_BUILD_GLESv2=FALSE -DSWIFTSHADER_BUILD_GLES_CM=FALSE -DSWIFTSHADER_BUILD_VULKAN=TRUE -DSWIFTSHADER_BUILD_PVR=FALSE -DSWIFTSHADER_BUILD_TESTS=FALSE -DSWIFTSHADER_ENABLE_ASTC=FALSE -DSWIFTSHADER_WARNINGS_AS_ERRORS=FALSE -DREACTOR_BACKEND=Subzero -DREACTOR_DEFAULT_OPT_LEVEL=Default -DCMAKE_BUILD_TYPE=Release ..
+        cmake -DCMAKE_INSTALL_PREFIX=install -DSWIFTSHADER_BUILD_EGL=FALSE -DSWIFTSHADER_BUILD_GLESv2=FALSE -DSWIFTSHADER_BUILD_GLES_CM=FALSE -DSWIFTSHADER_BUILD_VULKAN=TRUE -DSWIFTSHADER_BUILD_PVR=FALSE -DSWIFTSHADER_BUILD_TESTS=FALSE -DSWIFTSHADER_ENABLE_ASTC=FALSE -DSWIFTSHADER_WARNINGS_AS_ERRORS=FALSE -DREACTOR_BACKEND=Subzero -DREACTOR_DEFAULT_OPT_LEVEL=Default -DCMAKE_BUILD_TYPE=Release -DNCNN_BUILD_TESTS=ON ..
         cmake --build . --config Release -j 2
         mkdir "$env:GITHUB_WORKSPACE/swiftshader-install"
         Copy-Item -Path "Windows\*" -Destination "$env:GITHUB_WORKSPACE\swiftshader-install"
@@ -65,7 +65,7 @@ jobs:
       run: |
         $env:VULKAN_SDK="$(pwd)/VulkanSDK"
         mkdir build; cd build
-        cmake -DProtobuf_INCLUDE_DIR="$env:GITHUB_WORKSPACE\protobuf-install\include" -DProtobuf_LIBRARIES="$env:GITHUB_WORKSPACE\protobuf-install\lib\libprotobuf.lib" -DProtobuf_PROTOC_EXECUTABLE="$env:GITHUB_WORKSPACE\protobuf-install\bin\protoc.exe" -DNCNN_VULKAN=ON ..
+        cmake -DProtobuf_INCLUDE_DIR="$env:GITHUB_WORKSPACE\protobuf-install\include" -DProtobuf_LIBRARIES="$env:GITHUB_WORKSPACE\protobuf-install\lib\libprotobuf.lib" -DProtobuf_PROTOC_EXECUTABLE="$env:GITHUB_WORKSPACE\protobuf-install\bin\protoc.exe" -DNCNN_VULKAN=ON -DNCNN_BUILD_TESTS=ON ..
     - name: build
       run: cmake --build build --config Release -j 2
     - name: test
diff --git a/.travis.yml b/.travis.yml
index 46ef7ba30..410ba935d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,7 +20,7 @@ matrix:
       compiler: gcc
       env:
         - NAME=linux-gcc
-        - BUILD="mkdir build && cd build && cmake .. && make -j2 && ctest --output-on-failure -j 2"
+        - BUILD="mkdir build && cd build && cmake -DNCNN_BUILD_TESTS=ON .. && make -j2 && ctest --output-on-failure -j 2"
 
     - name: "linux-clang-arm64"
       os: linux
@@ -29,14 +29,14 @@ matrix:
       compiler: clang
       env:
         - NAME=linux-clang
-        - BUILD="mkdir build && cd build && cmake .. && make -j2 && ctest --output-on-failure -j 2"
+        - BUILD="mkdir build && cd build && cmake -DNCNN_BUILD_TESTS=ON .. && make -j2 && ctest --output-on-failure -j 2"
 
     - name: "windows-vs2017"
       os: windows
       dist: 1803-containers
       env:
         - NAME=windows-vs2017
-        - BUILD="mkdir build && cd build && cmake .. && cmake --build . --config Release && ctest -C Release --output-on-failure -j 2"
+        - BUILD="mkdir build && cd build && cmake -DNCNN_BUILD_TESTS=ON .. && cmake --build . --config Release && ctest -C Release --output-on-failure -j 2"
 
     - name: "test-coverage-arm64"
       os: linux
@@ -45,7 +45,7 @@ matrix:
       compiler: gcc
       env:
         - NAME=test-coverage-arm64
-        - BUILD="mkdir build && cd build && cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_COVERAGE=ON -DNCNN_OPENMP=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF .. && make -j2 && ctest --output-on-failure -j 2 && lcov -d ./src -c -o lcov.info && lcov -r lcov.info '/usr/*' -o lcov.info && lcov --list lcov.info && bash <(curl -s https://codecov.io/bash) -f lcov.info"
+        - BUILD="mkdir build && cd build && cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_COVERAGE=ON -DNCNN_OPENMP=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_TESTS=ON .. && make -j2 && ctest --output-on-failure -j 2 && lcov -d ./src -c -o lcov.info && lcov -r lcov.info '/usr/*' -o lcov.info && lcov --list lcov.info && bash <(curl -s https://codecov.io/bash) -f lcov.info"
 
     - name: "linux-gcc-arm32"
       os: linux
@@ -54,7 +54,7 @@ matrix:
       env:
         - NAME=linux-gcc-arm32
         - BEFORE_BUILD="sudo apt-get update && sudo dpkg --add-architecture armhf && sudo rm /etc/apt/sources.list.d/mongodb*.list && sudo apt-get update && sudo apt-get -y install crossbuild-essential-armhf libc6:armhf libstdc++-5-dev:armhf linux-libc-dev:armhf"
-        - BUILD="mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/arm-linux-gnueabihf.toolchain.cmake -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF - .. && make -j2 VERBOSE=1 && ctest --output-on-failure -j 2"
+        - BUILD="mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/arm-linux-gnueabihf.toolchain.cmake -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF - -DNCNN_BUILD_TESTS=ON .. && make -j2 VERBOSE=1 && ctest --output-on-failure -j 2"
 
     - name: "test-coverage-arm32"
       os: linux
@@ -63,7 +63,7 @@ matrix:
       env:
         - NAME=test-coverage-arm32
         - BEFORE_BUILD="sudo apt-get update && sudo dpkg --add-architecture armhf && sudo rm /etc/apt/sources.list.d/mongodb*.list && sudo apt-get update && sudo apt-get -y install crossbuild-essential-armhf libc6:armhf libstdc++-5-dev:armhf linux-libc-dev:armhf"
-        - BUILD="mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/arm-linux-gnueabihf.toolchain.cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_COVERAGE=ON -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF - .. && make -j2 && ctest --output-on-failure -j 2 && lcov -d ./src -c -o lcov.info && lcov -r lcov.info '/usr/*' -o lcov.info && lcov --list lcov.info && bash <(curl -s https://codecov.io/bash) -f lcov.info"
+        - BUILD="mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/arm-linux-gnueabihf.toolchain.cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_COVERAGE=ON -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF - -DNCNN_BUILD_TESTS=ON .. && make -j2 && ctest --output-on-failure -j 2 && lcov -d ./src -c -o lcov.info && lcov -r lcov.info '/usr/*' -o lcov.info && lcov --list lcov.info && bash <(curl -s https://codecov.io/bash) -f lcov.info"
 
 before_install:
   - eval "${BEFORE_BUILD}"
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 52a73368f..a217df136 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -49,7 +49,7 @@ option(NCNN_SYSTEM_GLSLANG "use system glslang library" OFF)
 option(NCNN_REQUANT "auto merge int8 quant and dequant" OFF)
 option(NCNN_RUNTIME_CPU "runtime dispatch cpu routines" ON)
 option(NCNN_DISABLE_PIC "disable position-independent code" OFF)
-option(NCNN_BUILD_TESTS "build tests" ON)
+option(NCNN_BUILD_TESTS "build tests" OFF)
 option(NCNN_COVERAGE "build for coverage" OFF)
 option(NCNN_BUILD_BENCHMARK "build benchmark" ON)