Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 1 | # Check every path through every method of UserDict |
| 2 | |
Serhiy Storchaka | e4fbb02 | 2016-04-24 23:42:49 +0300 | [diff] [blame] | 3 | from test import mapping_tests |
Zachary Ware | ac28b79 | 2015-12-04 23:32:23 -0600 | [diff] [blame] | 4 | import unittest |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 5 | import collections |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 6 | |
| 7 | d0 = {} |
| 8 | d1 = {"one": 1} |
| 9 | d2 = {"one": 1, "two": 2} |
Raymond Hettinger | e4827eb | 2002-11-27 08:29:11 +0000 | [diff] [blame] | 10 | d3 = {"one": 1, "two": 3, "three": 5} |
| 11 | d4 = {"one": None, "two": None} |
| 12 | d5 = {"one": 1, "two": 1} |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 13 | |
Walter Dörwald | 0a6d0ff | 2004-05-31 16:29:04 +0000 | [diff] [blame] | 14 | class UserDictTest(mapping_tests.TestHashMappingProtocol): |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 15 | type2test = collections.UserDict |
Raymond Hettinger | 2c2d322 | 2003-03-09 07:05:43 +0000 | [diff] [blame] | 16 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 17 | def test_all(self): |
| 18 | # Test constructors |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 19 | u = collections.UserDict() |
| 20 | u0 = collections.UserDict(d0) |
| 21 | u1 = collections.UserDict(d1) |
| 22 | u2 = collections.UserDict(d2) |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 23 | |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 24 | uu = collections.UserDict(u) |
| 25 | uu0 = collections.UserDict(u0) |
| 26 | uu1 = collections.UserDict(u1) |
| 27 | uu2 = collections.UserDict(u2) |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 28 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 29 | # keyword arg constructor |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 30 | self.assertEqual(collections.UserDict(one=1, two=2), d2) |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 31 | # item sequence constructor |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 32 | self.assertEqual(collections.UserDict([('one',1), ('two',2)]), d2) |
Serhiy Storchaka | 5527cf1 | 2015-09-29 23:38:34 +0300 | [diff] [blame] | 33 | with self.assertWarnsRegex(DeprecationWarning, "'dict'"): |
Serhiy Storchaka | 68f5ef2 | 2015-09-29 23:36:06 +0300 | [diff] [blame] | 34 | self.assertEqual(collections.UserDict(dict=[('one',1), ('two',2)]), d2) |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 35 | # both together |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 36 | self.assertEqual(collections.UserDict([('one',1), ('two',2)], two=3, three=5), d3) |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 37 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 38 | # alternate constructor |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 39 | self.assertEqual(collections.UserDict.fromkeys('one two'.split()), d4) |
| 40 | self.assertEqual(collections.UserDict().fromkeys('one two'.split()), d4) |
| 41 | self.assertEqual(collections.UserDict.fromkeys('one two'.split(), 1), d5) |
| 42 | self.assertEqual(collections.UserDict().fromkeys('one two'.split(), 1), d5) |
Benjamin Peterson | c9c0f20 | 2009-06-30 23:06:06 +0000 | [diff] [blame] | 43 | self.assertTrue(u1.fromkeys('one two'.split()) is not u1) |
Ezio Melotti | e961593 | 2010-01-24 19:26:24 +0000 | [diff] [blame] | 44 | self.assertIsInstance(u1.fromkeys('one two'.split()), collections.UserDict) |
| 45 | self.assertIsInstance(u2.fromkeys('one two'.split()), collections.UserDict) |
Raymond Hettinger | e4827eb | 2002-11-27 08:29:11 +0000 | [diff] [blame] | 46 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 47 | # Test __repr__ |
| 48 | self.assertEqual(str(u0), str(d0)) |
| 49 | self.assertEqual(repr(u1), repr(d1)) |
Christian Heimes | 5f8b0f5 | 2013-11-22 01:16:56 +0100 | [diff] [blame] | 50 | self.assertIn(repr(u2), ("{'one': 1, 'two': 2}", |
| 51 | "{'two': 2, 'one': 1}")) |
Raymond Hettinger | 5440545 | 2002-11-22 00:07:40 +0000 | [diff] [blame] | 52 | |
Mark Dickinson | a56c467 | 2009-01-27 18:17:45 +0000 | [diff] [blame] | 53 | # Test rich comparison and __len__ |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 54 | all = [d0, d1, d2, u, u0, u1, u2, uu, uu0, uu1, uu2] |
| 55 | for a in all: |
| 56 | for b in all: |
Guido van Rossum | 47b9ff6 | 2006-08-24 00:41:19 +0000 | [diff] [blame] | 57 | self.assertEqual(a == b, len(a) == len(b)) |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 58 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 59 | # Test __getitem__ |
| 60 | self.assertEqual(u2["one"], 1) |
| 61 | self.assertRaises(KeyError, u1.__getitem__, "two") |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 62 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 63 | # Test __setitem__ |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 64 | u3 = collections.UserDict(u2) |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 65 | u3["two"] = 2 |
| 66 | u3["three"] = 3 |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 67 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 68 | # Test __delitem__ |
| 69 | del u3["three"] |
| 70 | self.assertRaises(KeyError, u3.__delitem__, "three") |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 71 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 72 | # Test clear |
| 73 | u3.clear() |
| 74 | self.assertEqual(u3, {}) |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 75 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 76 | # Test copy() |
| 77 | u2a = u2.copy() |
| 78 | self.assertEqual(u2a, u2) |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 79 | u2b = collections.UserDict(x=42, y=23) |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 80 | u2c = u2b.copy() # making a copy of a UserDict is special cased |
| 81 | self.assertEqual(u2b, u2c) |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 82 | |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 83 | class MyUserDict(collections.UserDict): |
Guido van Rossum | be19ed7 | 2007-02-09 05:37:30 +0000 | [diff] [blame] | 84 | def display(self): print(self) |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 85 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 86 | m2 = MyUserDict(u2) |
| 87 | m2a = m2.copy() |
| 88 | self.assertEqual(m2a, m2) |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 89 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 90 | # SF bug #476616 -- copy() of UserDict subclass shared data |
| 91 | m2['foo'] = 'bar' |
| 92 | self.assertNotEqual(m2a, m2) |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 93 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 94 | # Test keys, items, values |
Christian Heimes | d5b200c | 2013-11-22 03:36:28 +0100 | [diff] [blame] | 95 | self.assertEqual(sorted(u2.keys()), sorted(d2.keys())) |
| 96 | self.assertEqual(sorted(u2.items()), sorted(d2.items())) |
| 97 | self.assertEqual(sorted(u2.values()), sorted(d2.values())) |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 98 | |
Guido van Rossum | e2b70bc | 2006-08-18 22:13:04 +0000 | [diff] [blame] | 99 | # Test "in". |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 100 | for i in u2.keys(): |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 101 | self.assertIn(i, u2) |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 102 | self.assertEqual(i in u1, i in d1) |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 103 | self.assertEqual(i in u0, i in d0) |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 104 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 105 | # Test update |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 106 | t = collections.UserDict() |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 107 | t.update(u2) |
| 108 | self.assertEqual(t, u2) |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 109 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 110 | # Test get |
| 111 | for i in u2.keys(): |
| 112 | self.assertEqual(u2.get(i), u2[i]) |
| 113 | self.assertEqual(u1.get(i), d1.get(i)) |
| 114 | self.assertEqual(u0.get(i), d0.get(i)) |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 115 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 116 | # Test "in" iteration. |
Guido van Rossum | 805365e | 2007-05-07 22:24:25 +0000 | [diff] [blame] | 117 | for i in range(20): |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 118 | u2[i] = str(i) |
| 119 | ikeys = [] |
| 120 | for k in u2: |
| 121 | ikeys.append(k) |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 122 | keys = u2.keys() |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 123 | self.assertEqual(set(ikeys), set(keys)) |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 124 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 125 | # Test setdefault |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 126 | t = collections.UserDict() |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 127 | self.assertEqual(t.setdefault("x", 42), 42) |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 128 | self.assertIn("x", t) |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 129 | self.assertEqual(t.setdefault("x", 23), 42) |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 130 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 131 | # Test pop |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 132 | t = collections.UserDict(x=42) |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 133 | self.assertEqual(t.pop("x"), 42) |
| 134 | self.assertRaises(KeyError, t.pop, "x") |
Raymond Hettinger | a3e1e4c | 2003-03-06 23:54:28 +0000 | [diff] [blame] | 135 | self.assertEqual(t.pop("x", 1), 1) |
| 136 | t["x"] = 42 |
| 137 | self.assertEqual(t.pop("x", 1), 42) |
Guido van Rossum | 3eccc48 | 1999-03-26 15:32:05 +0000 | [diff] [blame] | 138 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 139 | # Test popitem |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 140 | t = collections.UserDict(x=42) |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 141 | self.assertEqual(t.popitem(), ("x", 42)) |
| 142 | self.assertRaises(KeyError, t.popitem) |
Raymond Hettinger | 903bf90 | 2002-11-15 08:39:40 +0000 | [diff] [blame] | 143 | |
Serhiy Storchaka | 68f5ef2 | 2015-09-29 23:36:06 +0300 | [diff] [blame] | 144 | def test_init(self): |
| 145 | for kw in 'self', 'other', 'iterable': |
| 146 | self.assertEqual(list(collections.UserDict(**{kw: 42}).items()), |
| 147 | [(kw, 42)]) |
| 148 | self.assertEqual(list(collections.UserDict({}, dict=42).items()), |
| 149 | [('dict', 42)]) |
| 150 | self.assertEqual(list(collections.UserDict({}, dict=None).items()), |
| 151 | [('dict', None)]) |
Serhiy Storchaka | 5527cf1 | 2015-09-29 23:38:34 +0300 | [diff] [blame] | 152 | with self.assertWarnsRegex(DeprecationWarning, "'dict'"): |
Serhiy Storchaka | 68f5ef2 | 2015-09-29 23:36:06 +0300 | [diff] [blame] | 153 | self.assertEqual(list(collections.UserDict(dict={'a': 42}).items()), |
| 154 | [('a', 42)]) |
| 155 | self.assertRaises(TypeError, collections.UserDict, 42) |
| 156 | self.assertRaises(TypeError, collections.UserDict, (), ()) |
| 157 | self.assertRaises(TypeError, collections.UserDict.__init__) |
| 158 | |
| 159 | def test_update(self): |
| 160 | for kw in 'self', 'dict', 'other', 'iterable': |
| 161 | d = collections.UserDict() |
| 162 | d.update(**{kw: 42}) |
| 163 | self.assertEqual(list(d.items()), [(kw, 42)]) |
| 164 | self.assertRaises(TypeError, collections.UserDict().update, 42) |
| 165 | self.assertRaises(TypeError, collections.UserDict().update, {}, {}) |
| 166 | self.assertRaises(TypeError, collections.UserDict.update) |
| 167 | |
Guido van Rossum | 1968ad3 | 2006-02-25 22:38:04 +0000 | [diff] [blame] | 168 | def test_missing(self): |
| 169 | # Make sure UserDict doesn't have a __missing__ method |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 170 | self.assertEqual(hasattr(collections.UserDict, "__missing__"), False) |
Guido van Rossum | 1968ad3 | 2006-02-25 22:38:04 +0000 | [diff] [blame] | 171 | # Test several cases: |
| 172 | # (D) subclass defines __missing__ method returning a value |
| 173 | # (E) subclass defines __missing__ method raising RuntimeError |
| 174 | # (F) subclass sets __missing__ instance variable (no effect) |
Serhiy Storchaka | d65c949 | 2015-11-02 14:10:23 +0200 | [diff] [blame] | 175 | # (G) subclass doesn't define __missing__ at all |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 176 | class D(collections.UserDict): |
Guido van Rossum | 1968ad3 | 2006-02-25 22:38:04 +0000 | [diff] [blame] | 177 | def __missing__(self, key): |
| 178 | return 42 |
| 179 | d = D({1: 2, 3: 4}) |
| 180 | self.assertEqual(d[1], 2) |
| 181 | self.assertEqual(d[3], 4) |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 182 | self.assertNotIn(2, d) |
| 183 | self.assertNotIn(2, d.keys()) |
Guido van Rossum | 1968ad3 | 2006-02-25 22:38:04 +0000 | [diff] [blame] | 184 | self.assertEqual(d[2], 42) |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 185 | class E(collections.UserDict): |
Guido van Rossum | 1968ad3 | 2006-02-25 22:38:04 +0000 | [diff] [blame] | 186 | def __missing__(self, key): |
| 187 | raise RuntimeError(key) |
| 188 | e = E() |
| 189 | try: |
| 190 | e[42] |
Guido van Rossum | b940e11 | 2007-01-10 16:19:56 +0000 | [diff] [blame] | 191 | except RuntimeError as err: |
Guido van Rossum | 1968ad3 | 2006-02-25 22:38:04 +0000 | [diff] [blame] | 192 | self.assertEqual(err.args, (42,)) |
| 193 | else: |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 194 | self.fail("e[42] didn't raise RuntimeError") |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 195 | class F(collections.UserDict): |
Guido van Rossum | 1968ad3 | 2006-02-25 22:38:04 +0000 | [diff] [blame] | 196 | def __init__(self): |
| 197 | # An instance variable __missing__ should have no effect |
| 198 | self.__missing__ = lambda key: None |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 199 | collections.UserDict.__init__(self) |
Guido van Rossum | 1968ad3 | 2006-02-25 22:38:04 +0000 | [diff] [blame] | 200 | f = F() |
| 201 | try: |
| 202 | f[42] |
Guido van Rossum | b940e11 | 2007-01-10 16:19:56 +0000 | [diff] [blame] | 203 | except KeyError as err: |
Guido van Rossum | 1968ad3 | 2006-02-25 22:38:04 +0000 | [diff] [blame] | 204 | self.assertEqual(err.args, (42,)) |
| 205 | else: |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 206 | self.fail("f[42] didn't raise KeyError") |
Raymond Hettinger | 554c8b8 | 2008-02-05 22:54:43 +0000 | [diff] [blame] | 207 | class G(collections.UserDict): |
Guido van Rossum | 1968ad3 | 2006-02-25 22:38:04 +0000 | [diff] [blame] | 208 | pass |
| 209 | g = G() |
| 210 | try: |
| 211 | g[42] |
Guido van Rossum | b940e11 | 2007-01-10 16:19:56 +0000 | [diff] [blame] | 212 | except KeyError as err: |
Guido van Rossum | 1968ad3 | 2006-02-25 22:38:04 +0000 | [diff] [blame] | 213 | self.assertEqual(err.args, (42,)) |
| 214 | else: |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 215 | self.fail("g[42] didn't raise KeyError") |
Guido van Rossum | 1968ad3 | 2006-02-25 22:38:04 +0000 | [diff] [blame] | 216 | |
Raymond Hettinger | 903bf90 | 2002-11-15 08:39:40 +0000 | [diff] [blame] | 217 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 218 | |
Walter Dörwald | e28be59 | 2003-01-19 23:26:59 +0000 | [diff] [blame] | 219 | if __name__ == "__main__": |
Zachary Ware | 38c707e | 2015-04-13 15:00:43 -0500 | [diff] [blame] | 220 | unittest.main() |