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view test/pytest_patcher.py @ 5442:afd9fd3a0edb
Python 3 preparation: avoid assigning to instance __getitem__ in TruthDict.
In Python 3, special method names are generally only looked up at the
class level, not on instance objects, and so assigning to them for an
instance object doesn't work as expected.
| author | Joseph Myers <jsm@polyomino.org.uk> |
|---|---|
| date | Wed, 25 Jul 2018 12:29:08 +0000 |
| parents | 1c94afabb2cb |
| children |
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""" The following code was taken from: https://github.com/pytest-dev/pytest/issues/568#issuecomment-216569420 to resolve a bug with using pytest.mark.skip(). Once the bug is resolved in pytest this file can be removed along with all the wrapper mark_class() references in the other test files. """ import types def mark_class(marker): '''Workaround for https://github.com/pytest-dev/pytest/issues/568''' def copy_func(f): try: return types.FunctionType(f.__code__, f.__globals__, name=f.__name__, argdefs=f.__defaults__, closure=f.__closure__) except AttributeError: return types.FunctionType(f.func_code, f.func_globals, name=f.func_name, argdefs=f.func_defaults, closure=f.func_closure) def mark(cls): if isinstance(cls, types.FunctionType): return marker(copy_func(cls)) for method in dir(cls): if method.startswith('test'): f = copy_func(getattr(cls, method)) setattr(cls, method, marker(f)) return cls return mark
