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How to use ensure_topdir_wrapper method in pytest-cov

Best Python code snippet using pytest-cov

engine.py

Source:engine.py

...25    finally:26        setattr(obj, attr, backup)27def _ensure_topdir(meth):28    @functools.wraps(meth)29    def ensure_topdir_wrapper(self, *args, **kwargs):30        try:31            original_cwd = os.getcwd()32        except OSError:33            # Looks like it's gone, this is non-ideal because a side-effect will34            # be introduced in the tests here but we can't do anything about it.35            original_cwd = None36        os.chdir(self.topdir)37        try:38            return meth(self, *args, **kwargs)39        finally:40            if original_cwd is not None:41                os.chdir(original_cwd)42    return ensure_topdir_wrapper43class CovController(object):...

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