Let's say a project defines a bunch of tests which require setup and tear down steps before/after all the tests are run (not each individual test, I'm talking here about one setup before all tests are run and one tear down after all tests have finished). While this could be done by a script driving CTest itself, it is less desirable since different platforms may need different driver scripts and this seems like something CTest should be able to handle itself (if the setup/tear down steps use parts of the build, that only strengthens the case to have them handled by CMake/CTest directly).
It is possible to abuse the DEPENDS test property and define setup and tear down "tests" which are not really tests but which perform the necessary steps. While this mostly works, it is not ideal and in particular it doesn't work with CTest's --rerun-failed option. I'm wondering if there's currently a better way of telling CMake/CTest about a setup step which must be run before some particular set of test cases and a tear down step after they are all done. The tear down step needs to be performed regardless of whether any of the real test cases pass or fail. The motivating case is to start up and shutdown a service which a (subset of) test cases need running. That service is expensive to set up and hence it isn't feasible to start it up and shut it down for every test case individually. Any ideas? -- Craig Scott Melbourne, Australia http://crascit.com
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