view test/pytest_patcher.py @ 5395:23b8e6067f7c

Python 3 preparation: update calls to dict methods. Tool-assisted patch. Changes of iterkeys / itervalues / iteritems to keys / values / items are fully automated, but may make things less efficient in Python 2. Automated tools want to add list() around many calls to keys / values / items, but I thought most such list() additions were unnecessary because it seemed the result of keys / values / items was just iterated over while the set of dict keys remained unchanged, rather than used in a way requiring an actual list, or used while the set of keys in the dict could change. It's quite possible I missed some cases where list() was really needed, or left in some unnecessary list() calls. In cases where list() was only needed because the resulting list was then sorted in-place, I changed the code to use calls to sorted().
author Joseph Myers <jsm@polyomino.org.uk>
date Tue, 24 Jul 2018 23:04:42 +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

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