test_ext_django.py 文件源码

def _iter_patch_candidates(cls):
        """helper to scan for monkeypatches.

        returns tuple containing:
        * object (module or class)
        * attribute of object
        * value of attribute
        * whether it should or should not be patched
        """
        # XXX: this and assert_unpatched() could probably be refactored to use
        #      the PatchManager class to do the heavy lifting.
        from django.contrib.auth import models, hashers
        user_attrs = ["check_password", "set_password"]
        model_attrs = ["check_password", "make_password"]
        hasher_attrs = ["check_password", "make_password", "get_hasher", "identify_hasher",
                        "get_hashers"]
        objs = [(models, model_attrs),
                (models.User, user_attrs),
                (hashers, hasher_attrs),
        ]
        for obj, patched in objs:
            for attr in dir(obj):
                if attr.startswith("_"):
                    continue
                value = obj.__dict__.get(attr, UNSET) # can't use getattr() due to GAE
                if value is UNSET and attr not in patched:
                    continue
                value = get_method_function(value)
                source = getattr(value, "__module__", None)
                if source:
                    yield obj, attr, source, (attr in patched)

    #===================================================================
    # verify current patch state
    #===================================================================