c++ - How to link an exe project to the classes in another exe project -
suppose want unit testing on classes in executable don't want refactor them out lib can add lib using target_link_libraries( target library ) in cmake.
how give test class access other classes?
1) build test project source files other project? thing
include_directories(${otherexeprojectdir}) set( source_files main.cpp tests.h tests.cpp ${otherexeprojectdir}/otherclass1.h ${otherexeprojectdir}/otherclass2.h ) 2) link test project obj files other project? sort of add_library( otherclass.obj ) craziness?
3)
if main executable source locations simple or flat, work:
cmake_minimum_required(version 3.9) project(tests) # main executable source location properties get_target_property(exe_sources exe sources) get_target_property(exe_source_dir exe source_dir) # remove main entry point file list(remove_item exe_sources main.cpp) # add test sources add_executable(test1 test1.cpp) # add exe sources test (assumes sources relative paths) foreach(src in lists exe_sources) target_sources(test1 private "${exe_source_dir}/${src}") endforeach() # add exe include directories test target_include_directories(test1 private ${exe_source_dir} $<target_property:exe,include_directories>) otherwise general solution is, unfortunately, rely on external information, e.g. top level source file locations or adding own source properties main executable target.
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