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| 1 | |
| 2 # Copyright (c) 2001-2004 Twisted Matrix Laboratories. | |
| 3 # See LICENSE for details. | |
| 4 | |
| 5 | |
| 6 """ | |
| 7 Test cases for twisted.hook module. | |
| 8 """ | |
| 9 | |
| 10 from twisted.python import hook | |
| 11 from twisted.trial import unittest | |
| 12 | |
| 13 class BaseClass: | |
| 14 """ | |
| 15 dummy class to help in testing. | |
| 16 """ | |
| 17 def __init__(self): | |
| 18 """ | |
| 19 dummy initializer | |
| 20 """ | |
| 21 self.calledBasePre = 0 | |
| 22 self.calledBasePost = 0 | |
| 23 self.calledBase = 0 | |
| 24 | |
| 25 def func(self, a, b): | |
| 26 """ | |
| 27 dummy method | |
| 28 """ | |
| 29 assert a == 1 | |
| 30 assert b == 2 | |
| 31 self.calledBase = self.calledBase + 1 | |
| 32 | |
| 33 | |
| 34 class SubClass(BaseClass): | |
| 35 """ | |
| 36 another dummy class | |
| 37 """ | |
| 38 def __init__(self): | |
| 39 """ | |
| 40 another dummy initializer | |
| 41 """ | |
| 42 BaseClass.__init__(self) | |
| 43 self.calledSubPre = 0 | |
| 44 self.calledSubPost = 0 | |
| 45 self.calledSub = 0 | |
| 46 | |
| 47 def func(self, a, b): | |
| 48 """ | |
| 49 another dummy function | |
| 50 """ | |
| 51 assert a == 1 | |
| 52 assert b == 2 | |
| 53 BaseClass.func(self, a, b) | |
| 54 self.calledSub = self.calledSub + 1 | |
| 55 | |
| 56 _clean_BaseClass = BaseClass.__dict__.copy() | |
| 57 _clean_SubClass = SubClass.__dict__.copy() | |
| 58 | |
| 59 def basePre(base, a, b): | |
| 60 """ | |
| 61 a pre-hook for the base class | |
| 62 """ | |
| 63 base.calledBasePre = base.calledBasePre + 1 | |
| 64 | |
| 65 def basePost(base, a, b): | |
| 66 """ | |
| 67 a post-hook for the base class | |
| 68 """ | |
| 69 base.calledBasePost = base.calledBasePost + 1 | |
| 70 | |
| 71 def subPre(sub, a, b): | |
| 72 """ | |
| 73 a pre-hook for the subclass | |
| 74 """ | |
| 75 sub.calledSubPre = sub.calledSubPre + 1 | |
| 76 | |
| 77 def subPost(sub, a, b): | |
| 78 """ | |
| 79 a post-hook for the subclass | |
| 80 """ | |
| 81 sub.calledSubPost = sub.calledSubPost + 1 | |
| 82 | |
| 83 class HookTestCase(unittest.TestCase): | |
| 84 """ | |
| 85 test case to make sure hooks are called | |
| 86 """ | |
| 87 def setUp(self): | |
| 88 """Make sure we have clean versions of our classes.""" | |
| 89 BaseClass.__dict__.clear() | |
| 90 BaseClass.__dict__.update(_clean_BaseClass) | |
| 91 SubClass.__dict__.clear() | |
| 92 SubClass.__dict__.update(_clean_SubClass) | |
| 93 | |
| 94 def testBaseHook(self): | |
| 95 """make sure that the base class's hook is called reliably | |
| 96 """ | |
| 97 base = BaseClass() | |
| 98 self.assertEquals(base.calledBase, 0) | |
| 99 self.assertEquals(base.calledBasePre, 0) | |
| 100 base.func(1,2) | |
| 101 self.assertEquals(base.calledBase, 1) | |
| 102 self.assertEquals(base.calledBasePre, 0) | |
| 103 hook.addPre(BaseClass, "func", basePre) | |
| 104 base.func(1, b=2) | |
| 105 self.assertEquals(base.calledBase, 2) | |
| 106 self.assertEquals(base.calledBasePre, 1) | |
| 107 hook.addPost(BaseClass, "func", basePost) | |
| 108 base.func(1, b=2) | |
| 109 self.assertEquals(base.calledBasePost, 1) | |
| 110 self.assertEquals(base.calledBase, 3) | |
| 111 self.assertEquals(base.calledBasePre, 2) | |
| 112 hook.removePre(BaseClass, "func", basePre) | |
| 113 hook.removePost(BaseClass, "func", basePost) | |
| 114 base.func(1, b=2) | |
| 115 self.assertEquals(base.calledBasePost, 1) | |
| 116 self.assertEquals(base.calledBase, 4) | |
| 117 self.assertEquals(base.calledBasePre, 2) | |
| 118 | |
| 119 def testSubHook(self): | |
| 120 """test interactions between base-class hooks and subclass hooks | |
| 121 """ | |
| 122 sub = SubClass() | |
| 123 self.assertEquals(sub.calledSub, 0) | |
| 124 self.assertEquals(sub.calledBase, 0) | |
| 125 sub.func(1, b=2) | |
| 126 self.assertEquals(sub.calledSub, 1) | |
| 127 self.assertEquals(sub.calledBase, 1) | |
| 128 hook.addPre(SubClass, 'func', subPre) | |
| 129 self.assertEquals(sub.calledSub, 1) | |
| 130 self.assertEquals(sub.calledBase, 1) | |
| 131 self.assertEquals(sub.calledSubPre, 0) | |
| 132 self.assertEquals(sub.calledBasePre, 0) | |
| 133 sub.func(1, b=2) | |
| 134 self.assertEquals(sub.calledSub, 2) | |
| 135 self.assertEquals(sub.calledBase, 2) | |
| 136 self.assertEquals(sub.calledSubPre, 1) | |
| 137 self.assertEquals(sub.calledBasePre, 0) | |
| 138 # let the pain begin | |
| 139 hook.addPre(BaseClass, 'func', basePre) | |
| 140 BaseClass.func(sub, 1, b=2) | |
| 141 # sub.func(1, b=2) | |
| 142 self.assertEquals(sub.calledBase, 3) | |
| 143 self.assertEquals(sub.calledBasePre, 1, str(sub.calledBasePre)) | |
| 144 sub.func(1, b=2) | |
| 145 self.assertEquals(sub.calledBasePre, 2) | |
| 146 self.assertEquals(sub.calledBase, 4) | |
| 147 self.assertEquals(sub.calledSubPre, 2) | |
| 148 self.assertEquals(sub.calledSub, 3) | |
| 149 | |
| 150 testCases = [HookTestCase] | |
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Chromium Code Reviews
Issue 12261012:
Remove third_party/twisted_8_1 (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/tools/build