Remove third_party/twisted_8_1

third_party/twisted_8_1/twisted/python/monkey.py

-# -*- test-case-name: twisted.test.test_monkey -*-
-
-# Copyright (c) 2007 Twisted Matrix Laboratories.
-# See LICENSE for details.
-
-
-class MonkeyPatcher(object):
-    """
-    Cover up attributes with new objects. Neat for monkey-patching things for
-    unit-testing purposes.
-    """
-
-    def __init__(self, *patches):
-        # List of patches to apply in (obj, name, value).
-        self._patchesToApply = []
-        # List of the original values for things that have been patched.
-        # (obj, name, value) format.
-        self._originals = []
-        for patch in patches:
-            self.addPatch(*patch)
-
-
-    def addPatch(self, obj, name, value):
-        """
-        Add a patch so that the attribute C{name} on C{obj} will be assigned to
-        C{value} when C{patch} is called or during C{runWithPatches}.
-
-        You can restore the original values with a call to restore().
-        """
-        self._patchesToApply.append((obj, name, value))
-
-
-    def _alreadyPatched(self, obj, name):
-        """
-        Has the C{name} attribute of C{obj} already been patched by this
-        patcher?
-        """
-        for o, n, v in self._originals:
-            if (o, n) == (obj, name):
-                return True
-        return False
-
-
-    def patch(self):
-        """
-        Apply all of the patches that have been specified with L{addPatch}.
-        Reverse this operation using L{restore}.
-        """
-        for obj, name, value in self._patchesToApply:
-            if not self._alreadyPatched(obj, name):
-                self._originals.append((obj, name, getattr(obj, name)))
-            setattr(obj, name, value)
-
-
-    def restore(self):
-        """
-        Restore all original values to any patched objects.
-        """
-        while self._originals:
-            obj, name, value = self._originals.pop()
-            setattr(obj, name, value)
-
-
-    def runWithPatches(self, f, *args, **kw):
-        """
-        Apply each patch already specified. Then run the function f with the
-        given args and kwargs. Restore everything when done.
-        """
-        self.patch()
-        try:
-            return f(*args, **kw)
-        finally:
-            self.restore()