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Diffstat (limited to 'doc')
| -rw-r--r-- | doc/develop/tests_writing.rst | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/doc/develop/tests_writing.rst b/doc/develop/tests_writing.rst index 1ddf7a353a..bb1145da26 100644 --- a/doc/develop/tests_writing.rst +++ b/doc/develop/tests_writing.rst @@ -74,6 +74,33 @@ NOT rely on running with sandbox, but instead should function correctly on any board supported by U-Boot. +Mixing Python and C +------------------- + +The best of both worlds is sometimes to have a Python test set things up and +perform some operations, with a 'checker' C unit test doing the checks +afterwards. This can be achieved with these steps: + +- Add the `UT_TESTF_MANUAL` flag to the checker test so that the `ut` command + does not run it by default +- Add a `_norun` suffix to the name so that pytest knows to skip it too + +In your Python test use the `-f` flag to the `ut` command to force the checker +test to run it, e.g.:: + + # Do the Python part + host load ... + bootm ... + + # Run the checker to make sure that everything worked + ut -f bootstd vbe_test_fixup_norun + +Note that apart from the `UT_TESTF_MANUAL` flag, the code in a 'manual' C test +is just like any other C test. It still uses ut_assert...() and other such +constructs, in this case to check that the expected things happened in the +Python test. + + How slow are Python tests? -------------------------- |