gnattest can add user-written tests to the main suite of the test driver. gnattest traverses the given packages and searches for test routines. All procedures with a single in out parameter of a type which is derived from AUnit.Test_Fixtures.Test_Fixture and that are declared in package specifications are added to the suites and are then executed by the test driver. (Set_Up and Tear_Down are filtered out.)
An example illustrates two ways of creating test harnesses for user-written tests. Directory additional_tests contains an AUnit-based test driver written by hand.
To create a test driver for already-written tests, use the –harness-only option:
gnattest -Padditional/harness/harness.gpr --harness-dir=harness_only \ --harness-only gnatmake -Pharness_only/test_driver.gpr harness_only/test_runner
Additional tests can also be executed together with generated tests:
gnattest -Psimple.gpr --additional-tests=additional/harness/harness.gpr \ --harness-dir=mixing gnatmake -Pmixing/test_driver.gpr mixing/test_runner