CppUnit tests always passing with Ctest

cmake, cppunit, ctest

Solution

I'm not familiar with CppUnit, but I suspect your executables are always returning `0`, even if the test fails. CTest takes a return of `0` to indicate success.

If you change your return value when the test fails to a non-zero number, you should see the expected output from CTest.

Alternatively, you can modify CTest's behaviour by using `set_tests_properties` to set the values of `PASS_REGULAR_EXPRESSION` and/or `FAIL_REGULAR_EXPRESSION`. If either of these are set, the return value is ignored. So for example, you could do:

set_tests_properties(
    TestDataSpace
    TestVariableManager
    TestLayoutManager
        PROPERTIES PASS_REGULAR_EXPRESSION "TEST PASSED;Pass")

As an aside, you can avoid passing the full path to the test executables in your case since they are actual CMake targets defined in the same CMakeLists.txt:

add_test(NAME TestDataSpace COMMAND TestDataSpace)
add_test(NAME TestVariableManager COMMAND TestVariableManager)
add_test(NAME TestLayoutManager COMMAND TestLayoutManager)

Problem

I'm working on a project using CMake and just integrated some CppUnit tests. I would like to use CTest and thus I used add_test in my CMakeLists.txt files to have the tests executed when typing `make test`. Yet I observe that, when typing `make test`, it says that all the tests passed even if I make a test with trivial errors. Erroneous tests report these errors when executed manually (e.g. ./my_test) but not when executed using `make test`. Here is the content of my CMakeLists.txt in the test directory: ``` add_executable(TestDataSpace TestDataSpace.cpp) target_link_libraries(TestDataSpace ${DEP_LIBRARIES} ${CPPUNIT_LIBRARIES}) add_executable(TestVariableManager TestVariableManager.cpp) target_link_libraries(TestVariableManager ${DEP_LIBRARIES} ${CPPUNIT_LIBRARIES}) add_executable(TestLayoutManager TestLayoutManager.cpp) target_link_libraries(TestLayoutManager ${DEP_LIBRARIES} ${CPPUNIT_LIBRARIES}) add_test(NAME "TestDataSpace" COMMAND ${MY_PROJECT_SOURCE_DIR}/test/TestDataSpace) add_test(NAME "TestVariableManager" COMMAND ${MY_PROJECT_SOURCE_DIR}/test/TestVariableManager) add_test(NAME "TestLayoutManager" COMMAND ${MY_PROJECT_SOURCE_DIR}/test/TestLayoutManager) ``` CTest does find the executables, since putting a wrong path for the command makes CMake complain that it doesn't find them. `make test` outputs the following: Running tests... Test project ``` Start 1: TestDataSpace 1/3 Test #1: TestDataSpace .................... Passed 0.01 sec Start 2: TestVariableManager 2/3 Test #2: TestVariableManager .............. Passed 0.02 sec Start 3: TestLayoutManager 3/3 Test #3: TestLayoutManager ................ Passed 0.01 sec ``` 100% tests passed, 0 tests failed out of 3 What am I missing?

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