# Build and install library
set(HEADERS hello_world_lib.hpp)
set(SOURCES hello_world_lib.cpp)
add_library(hello_world_lib ${SOURCES})
install(TARGETS hello_world_lib DESTINATION lib)
install(FILES ${HEADERS} DESTINATION include)

# Build and install user executable
add_executable(hello_world hello_world_main.cpp)
target_link_libraries(hello_world hello_world_lib)
install(TARGETS hello_world DESTINATION bin)

# Test the executable
add_test(test ${CMAKE_CURRENT_BINARY_DIR}/hello_world)
set_tests_properties(test PROPERTIES PASS_REGULAR_EXPRESSION "Hello World")

# Build and run some unit tests  
add_executable(unit_tests hello_world_unit_tests.cpp)
target_link_libraries(unit_tests hello_world_lib)
add_test(unit_test ${CMAKE_CURRENT_BINARY_DIR}/unit_tests)
set_tests_properties(unit_test
  PROPERTIES PASS_REGULAR_EXPRESSION "All unit tests passed")