System information (version)

• OpenCV => 3.2.0-rc (from source)
• Operating System / Platform => Ubuntu 16.10
• Compiler => gcc 6.2.0

Detailed description

I'm trying to use the ts module in projects to use the same test functionalities as OpenCV. When I build OpenCV with either

  -D BUILD_TESTS=ON 
  -D BUILD_PERF_TESTS=ON 
  -D BUILD_opencv_ts=ON 

I see that the ts module is listed among the modules to built. However, it is never installed (not sure if that is intended).

The library is created (although statically, regardless of BUILD_SHARED_LIBS=ON), but not installed, and not findable by cmake, for example.

Steps to reproduce

cmake \
  -D CMAKE_BUILD_TYPE=RELEASE \
  -D ENABLE_PRECOMPILED_HEADERS=OFF \
  -D CMAKE_INSTALL_PREFIX=/usr/local \
  -D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules \
  -D BUILD_NEW_PYTHON_SUPPORT=ON \
  -D WITH_TBB=ON \
  -D WITH_QT=ON \
  -D WITH_OPENGL=ON \
  -D BUILD_TIFF=ON \
  -D BUILD_SHARED_LIBS=ON \
  -D BUILD_EXAMPLES=ON \
  -D BUILD_opencv_ts=ON \
  ..

make -j $(nproc)
sudo make install

Then try to use it, for example with cmake

find_package ( OpenCV REQUIRED ts )

fails to find the ts library.

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