• Manuel Jacob's avatar
    tests: port from nosetests to pytest · d843f9a62e6e
    Manuel Jacob authored
    Nosetests is not actively developed anymore. Pytest is actively developed and
    has a much larger ecosystem around it.
    Two features of pytest are particularly helpful for us:
    Pytest captures stdio by redirecting at the file descriptor-level instead of
    replacing sys.stdout. This is required for Mercurial, as it has its own
    reference to stdout. Before with nosetests, most output was silently swallowed.
    Pytest offers the `ALLOW_UNICODE` and `ALLOW_BYTES` options for doctests, making
    it much easier to make our docstrings Python 2- and Python 3-compatiable.
    During this patch, it was attempted to leave the structure of the test code
    similar to before instead of converting everything to idiomatic pytest code.
    Luckily, pytest implements enough interoperability for most of our test code.
wconfig_test.py 11.4 KB