tests/CMakeLists: Use same dependencies as src/

[ferdnyc]

tests/CMakeLists.txt needs to use the same method of incorporating system libraries (FFMpeg, jsoncpp) as src/CMakeLists.txt, or the tests fail (or fail to build). This change just cut-and-pastes the relevant parts of CMakeLists.txt from src/ to tests/, to prevent things like this happening:

With system FFMpeg:

[ 86%] Building CXX object tests/CMakeFiles/openshot-test.dir/Cache_Tests.cpp.o
cd /home/ferd/rpmbuild/REPOS/libopenshot/build2/tests && /usr/lib64/ccache/c++  -DMAGICKCORE_HDRI_ENABLE=0 -DMAGICKCORE_QUANTUM_DEPTH=16 -DOPENSHOT_IMAGEMAGICK_COMPATIBILITY=0 -DQT_CORE_LIB -DQT_GUI_LIB -DQT_MULTIMEDIAWIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_NETWORK_LIB -DQT_NO_DEBUG -DQT_WIDGETS_LIB -DTEST_MEDIA_PATH=\"/home/ferd/rpmbuild/REPOS/libopenshot/src/examples/\" -DUSE_IMAGEMAGICK=1 -I/usr/include/UnitTest++ -I/usr/include/ImageMagick-6 -I/usr/include/libopenshot-audio -isystem /usr/include/qt5 -isystem /usr/include/qt5/QtWidgets -isystem /usr/include/qt5/QtGui -isystem /usr/include/qt5/QtCore -isystem /usr/lib64/qt5/mkspecs/linux-g++ -isystem /usr/include/qt5/QtMultimedia -isystem /usr/include/qt5/QtNetwork -isystem /usr/include/qt5/QtMultimediaWidgets -I/home/ferd/rpmbuild/REPOS/libopenshot/tests/../thirdparty/jsoncpp/include  -std=c++11           -g -ggdb  -fopenmp    -fPIC -std=gnu++11 -o CMakeFiles/openshot-test.dir/Cache_Tests.cpp.o -c /home/ferd/rpmbuild/REPOS/libopenshot/tests/Cache_Tests.cpp
In file included from /home/ferd/rpmbuild/REPOS/libopenshot/tests/../include/ChannelLayouts.h:32,
                 from /home/ferd/rpmbuild/REPOS/libopenshot/tests/../include/Frame.h:60,
                 from /home/ferd/rpmbuild/REPOS/libopenshot/tests/../include/CacheBase.h:32,
                 from /home/ferd/rpmbuild/REPOS/libopenshot/tests/../include/CacheMemory.h:34,
                 from /home/ferd/rpmbuild/REPOS/libopenshot/tests/../include/ReaderBase.h:36,
                 from /home/ferd/rpmbuild/REPOS/libopenshot/tests/../include/AudioReaderSource.h:41,
                 from /home/ferd/rpmbuild/REPOS/libopenshot/tests/../include/OpenShot.h:100,
                 from /home/ferd/rpmbuild/REPOS/libopenshot/tests/Cache_Tests.cpp:29:
/home/ferd/rpmbuild/REPOS/libopenshot/tests/../include/FFmpegUtilities.h:43:12: fatal error: libavcodec/avcodec.h: No such file or directory
   #include <libavcodec/avcodec.h>
            ^~~~~~~~~~~~~~~~~~~~~~
compilation terminated.

libopenshot linked with system jsoncpp:

$ tests/openshot-test 
----------------------------
     RUNNING ALL TESTS
----------------------------
/home/ferd/rpmbuild/REPOS/libopenshot/tests/Clip_Tests.cpp:95:1: error: Failure in Clip_Properties: Unhandled exception: test crashed
[libvpx @ 0x1b39480] v1.7.0
[libvorbis @ 0x1bedc80] 31 frames left in the queue on closing
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
FAILURE: 1 out of 78 tests failed (1 failures).
Test time: 4.37 seconds.
----------------------------

Fixes #175

[ferdnyc]

Ditto the system jsoncpp, if used. I just pushed a commit to add that switch to tests/CMakeLists.txt as well.

[jonoomph]

LG! 👍