Hello,
It seems that several of libcxx unit tests are failing when running under sudo (sudo ninja check-libcxx). For example, some of the tests check the permission of the file/directory after the filesystem operation, but sudo privilege overrides it. I wonder if it’s possible to guard a test based on the user’s privilege? Thanks!
Best,
Taewook
Do you have a list of the tests that fail, and why? It would be interesting to understand whether those failures are accurate (and we should fix libc++), or whether the tests are erroneous.
It seems like a bad idea to run tests under sudo… but we probably should look into why you’re seeing that behavior.
The tests fail because they’re trying to cause errors and test error reporting in filesystem. Normally via removing permissions from a filesystem entity, then attempting to read or manipulate it.
Testing for error conditions in filesystem is tricky. For example, you can’t reasonable test for an out-of-space condition. The EPERM tests are often the only tests that exercise the failure paths.
/Eric