Remove third_party/twisted_8_1

third_party/twisted_8_1/twisted/test/test_monkey.py

-# Copyright (c) 2007 Twisted Matrix Laboratories.
-# See LICENSE for details.
-
-"""
-Tests for L{twisted.python.monkey}.
-"""
-
-from twisted.trial import unittest
-from twisted.python.monkey import MonkeyPatcher
-
-
-class TestObj:
-    def __init__(self):
-        self.foo = 'foo value'
-        self.bar = 'bar value'
-        self.baz = 'baz value'
-
-
-class MonkeyPatcherTest(unittest.TestCase):
-    """
-    Tests for L{MonkeyPatcher} monkey-patching class.
-    """
-
-    def setUp(self):
-        self.testObject = TestObj()
-        self.originalObject = TestObj()
-        self.monkeyPatcher = MonkeyPatcher()
-
-
-    def test_empty(self):
-        """
-        A monkey patcher without patches shouldn't change a thing.
-        """
-        self.monkeyPatcher.patch()
-
-        # We can't assert that all state is unchanged, but at least we can
-        # check our test object.
-        self.assertEquals(self.originalObject.foo, self.testObject.foo)
-        self.assertEquals(self.originalObject.bar, self.testObject.bar)
-        self.assertEquals(self.originalObject.baz, self.testObject.baz)
-
-
-    def test_constructWithPatches(self):
-        """
-        Constructing a L{MonkeyPatcher} with patches should add all of the
-        given patches to the patch list.
-        """
-        patcher = MonkeyPatcher((self.testObject, 'foo', 'haha'),
-                                (self.testObject, 'bar', 'hehe'))
-        patcher.patch()
-        self.assertEquals('haha', self.testObject.foo)
-        self.assertEquals('hehe', self.testObject.bar)
-        self.assertEquals(self.originalObject.baz, self.testObject.baz)
-
-
-    def test_patchExisting(self):
-        """
-        Patching an attribute that exists sets it to the value defined in the
-        patch.
-        """
-        self.monkeyPatcher.addPatch(self.testObject, 'foo', 'haha')
-        self.monkeyPatcher.patch()
-        self.assertEquals(self.testObject.foo, 'haha')
-
-
-    def test_patchNonExisting(self):
-        """
-        Patching a non-existing attribute fails with an C{AttributeError}.
-        """
-        self.monkeyPatcher.addPatch(self.testObject, 'nowhere',
-                                    'blow up please')
-        self.assertRaises(AttributeError, self.monkeyPatcher.patch)
-
-
-    def test_patchAlreadyPatched(self):
-        """
-        Adding a patch for an object and attribute that already have a patch
-        overrides the existing patch.
-        """
-        self.monkeyPatcher.addPatch(self.testObject, 'foo', 'blah')
-        self.monkeyPatcher.addPatch(self.testObject, 'foo', 'BLAH')
-        self.monkeyPatcher.patch()
-        self.assertEquals(self.testObject.foo, 'BLAH')
-        self.monkeyPatcher.restore()
-        self.assertEquals(self.testObject.foo, self.originalObject.foo)
-
-
-    def test_restoreTwiceIsANoOp(self):
-        """
-        Restoring an already-restored monkey patch is a no-op.
-        """
-        self.monkeyPatcher.addPatch(self.testObject, 'foo', 'blah')
-        self.monkeyPatcher.patch()
-        self.monkeyPatcher.restore()
-        self.assertEquals(self.testObject.foo, self.originalObject.foo)
-        self.monkeyPatcher.restore()
-        self.assertEquals(self.testObject.foo, self.originalObject.foo)
-
-
-    def test_runWithPatchesDecoration(self):
-        """
-        runWithPatches should run the given callable, passing in all arguments
-        and keyword arguments, and return the return value of the callable.
-        """
-        log = []
-
-        def f(a, b, c=None):
-            log.append((a, b, c))
-            return 'foo'
-
-        result = self.monkeyPatcher.runWithPatches(f, 1, 2, c=10)
-        self.assertEquals('foo', result)
-        self.assertEquals([(1, 2, 10)], log)
-
-
-    def test_repeatedRunWithPatches(self):
-        """
-        We should be able to call the same function with runWithPatches more
-        than once. All patches should apply for each call.
-        """
-        def f():
-            return (self.testObject.foo, self.testObject.bar,
-                    self.testObject.baz)
-
-        self.monkeyPatcher.addPatch(self.testObject, 'foo', 'haha')
-        result = self.monkeyPatcher.runWithPatches(f)
-        self.assertEquals(
-            ('haha', self.originalObject.bar, self.originalObject.baz), result)
-        result = self.monkeyPatcher.runWithPatches(f)
-        self.assertEquals(
-            ('haha', self.originalObject.bar, self.originalObject.baz),
-            result)
-
-
-    def test_runWithPatchesRestores(self):
-        """
-        C{runWithPatches} should restore the original values after the function
-        has executed.
-        """
-        self.monkeyPatcher.addPatch(self.testObject, 'foo', 'haha')
-        self.assertEquals(self.originalObject.foo, self.testObject.foo)
-        self.monkeyPatcher.runWithPatches(lambda: None)
-        self.assertEquals(self.originalObject.foo, self.testObject.foo)
-
-
-    def test_runWithPatchesRestoresOnException(self):
-        """
-        Test runWithPatches restores the original values even when the function
-        raises an exception.
-        """
-        def _():
-            self.assertEquals(self.testObject.foo, 'haha')
-            self.assertEquals(self.testObject.bar, 'blahblah')
-            raise RuntimeError, "Something went wrong!"
-
-        self.monkeyPatcher.addPatch(self.testObject, 'foo', 'haha')
-        self.monkeyPatcher.addPatch(self.testObject, 'bar', 'blahblah')
-
-        self.assertRaises(RuntimeError, self.monkeyPatcher.runWithPatches, _)
-        self.assertEquals(self.testObject.foo, self.originalObject.foo)
-        self.assertEquals(self.testObject.bar, self.originalObject.bar)