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| 1 | +"""CPython test_set.py adapted for apython.""" |
| 2 | +import unittest |
| 3 | + |
| 4 | +class TestSet(unittest.TestCase): |
| 5 | + |
| 6 | + def test_uniquification(self): |
| 7 | + s = set([1, 1, 2, 2, 3, 3]) |
| 8 | + self.assertEqual(sorted(s), [1, 2, 3]) |
| 9 | + |
| 10 | + def test_len(self): |
| 11 | + self.assertEqual(len(set()), 0) |
| 12 | + self.assertEqual(len(set([1, 2, 3])), 3) |
| 13 | + self.assertEqual(len({1, 2, 3}), 3) |
| 14 | + |
| 15 | + def test_contains(self): |
| 16 | + s = {1, 2, 3} |
| 17 | + self.assertIn(1, s) |
| 18 | + self.assertIn(2, s) |
| 19 | + self.assertIn(3, s) |
| 20 | + self.assertNotIn(4, s) |
| 21 | + self.assertNotIn('a', s) |
| 22 | + |
| 23 | + def test_union(self): |
| 24 | + a = {1, 2, 3} |
| 25 | + b = {2, 3, 4} |
| 26 | + self.assertEqual(sorted(a | b), [1, 2, 3, 4]) |
| 27 | + self.assertEqual(sorted(a.union(b)), [1, 2, 3, 4]) |
| 28 | + # Union with empty |
| 29 | + self.assertEqual(a | set(), a) |
| 30 | + self.assertEqual(set() | a, a) |
| 31 | + |
| 32 | + def test_intersection(self): |
| 33 | + a = {1, 2, 3} |
| 34 | + b = {2, 3, 4} |
| 35 | + self.assertEqual(sorted(a & b), [2, 3]) |
| 36 | + self.assertEqual(sorted(a.intersection(b)), [2, 3]) |
| 37 | + # Intersection with empty |
| 38 | + self.assertEqual(a & set(), set()) |
| 39 | + |
| 40 | + def test_difference(self): |
| 41 | + a = {1, 2, 3} |
| 42 | + b = {2, 3, 4} |
| 43 | + self.assertEqual(sorted(a - b), [1]) |
| 44 | + self.assertEqual(sorted(a.difference(b)), [1]) |
| 45 | + |
| 46 | + def test_symmetric_difference(self): |
| 47 | + a = {1, 2, 3} |
| 48 | + b = {2, 3, 4} |
| 49 | + self.assertEqual(sorted(a ^ b), [1, 4]) |
| 50 | + self.assertEqual(sorted(a.symmetric_difference(b)), [1, 4]) |
| 51 | + |
| 52 | + def test_isdisjoint(self): |
| 53 | + self.assertTrue({1, 2}.isdisjoint({3, 4})) |
| 54 | + self.assertFalse({1, 2}.isdisjoint({2, 3})) |
| 55 | + self.assertTrue(set().isdisjoint(set())) |
| 56 | + |
| 57 | + def test_issubset(self): |
| 58 | + self.assertTrue({1, 2}.issubset({1, 2, 3})) |
| 59 | + self.assertTrue(set().issubset({1})) |
| 60 | + self.assertFalse({1, 2, 3}.issubset({1, 2})) |
| 61 | + self.assertTrue({1, 2}.issubset({1, 2})) |
| 62 | + |
| 63 | + def test_issuperset(self): |
| 64 | + self.assertTrue({1, 2, 3}.issuperset({1, 2})) |
| 65 | + self.assertTrue({1}.issuperset(set())) |
| 66 | + self.assertFalse({1, 2}.issuperset({1, 2, 3})) |
| 67 | + self.assertTrue({1, 2}.issuperset({1, 2})) |
| 68 | + |
| 69 | + def test_equality(self): |
| 70 | + self.assertEqual(set(), set()) |
| 71 | + self.assertEqual({1, 2, 3}, {1, 2, 3}) |
| 72 | + self.assertEqual({1, 2, 3}, {3, 2, 1}) |
| 73 | + self.assertNotEqual({1, 2}, {1, 2, 3}) |
| 74 | + self.assertNotEqual({1, 2, 3}, {1, 2}) |
| 75 | + |
| 76 | + def test_clear(self): |
| 77 | + s = {1, 2, 3} |
| 78 | + s.clear() |
| 79 | + self.assertEqual(len(s), 0) |
| 80 | + self.assertEqual(s, set()) |
| 81 | + |
| 82 | + def test_copy(self): |
| 83 | + s = {1, 2, 3} |
| 84 | + t = s.copy() |
| 85 | + self.assertEqual(s, t) |
| 86 | + self.assertIsNot(s, t) |
| 87 | + |
| 88 | + def test_add(self): |
| 89 | + s = set() |
| 90 | + s.add(1) |
| 91 | + s.add(2) |
| 92 | + s.add(2) # duplicate |
| 93 | + self.assertEqual(sorted(s), [1, 2]) |
| 94 | + |
| 95 | + def test_remove(self): |
| 96 | + s = {1, 2, 3} |
| 97 | + s.remove(2) |
| 98 | + self.assertEqual(sorted(s), [1, 3]) |
| 99 | + try: |
| 100 | + s.remove(99) |
| 101 | + self.fail("Expected KeyError") |
| 102 | + except KeyError: |
| 103 | + pass |
| 104 | + |
| 105 | + def test_discard(self): |
| 106 | + s = {1, 2, 3} |
| 107 | + s.discard(2) |
| 108 | + self.assertEqual(sorted(s), [1, 3]) |
| 109 | + s.discard(99) # should not raise |
| 110 | + self.assertEqual(sorted(s), [1, 3]) |
| 111 | + |
| 112 | + def test_pop(self): |
| 113 | + s = {1} |
| 114 | + v = s.pop() |
| 115 | + self.assertEqual(v, 1) |
| 116 | + self.assertEqual(len(s), 0) |
| 117 | + try: |
| 118 | + s.pop() |
| 119 | + self.fail("Expected KeyError") |
| 120 | + except KeyError: |
| 121 | + pass |
| 122 | + |
| 123 | + def test_set_literal(self): |
| 124 | + s = {1, 2, 3} |
| 125 | + self.assertEqual(sorted(s), [1, 2, 3]) |
| 126 | + self.assertIsInstance(s, set) |
| 127 | + |
| 128 | + def test_iteration(self): |
| 129 | + s = {1, 2, 3} |
| 130 | + result = [] |
| 131 | + for x in s: |
| 132 | + result.append(x) |
| 133 | + self.assertEqual(sorted(result), [1, 2, 3]) |
| 134 | + |
| 135 | + def test_set_of_strings(self): |
| 136 | + s = {'a', 'b', 'c'} |
| 137 | + self.assertEqual(sorted(s), ['a', 'b', 'c']) |
| 138 | + self.assertIn('a', s) |
| 139 | + self.assertNotIn('d', s) |
| 140 | + |
| 141 | + def test_bool(self): |
| 142 | + self.assertFalse(set()) |
| 143 | + self.assertTrue({1}) |
| 144 | + |
| 145 | + def test_repr(self): |
| 146 | + # Empty set |
| 147 | + self.assertEqual(repr(set()), 'set()') |
| 148 | + # Single element |
| 149 | + self.assertEqual(repr({1}), '{1}') |
| 150 | + |
| 151 | + def test_large_set(self): |
| 152 | + s = set() |
| 153 | + for i in range(1000): |
| 154 | + s.add(i) |
| 155 | + self.assertEqual(len(s), 1000) |
| 156 | + for i in range(1000): |
| 157 | + self.assertIn(i, s) |
| 158 | + |
| 159 | + def test_update(self): |
| 160 | + # set.update via |= (update method not available) |
| 161 | + s = {1, 2} |
| 162 | + s |= {3, 4} |
| 163 | + self.assertEqual(sorted(s), [1, 2, 3, 4]) |
| 164 | + |
| 165 | + def test_set_from_list(self): |
| 166 | + s = set([1, 2, 3, 2, 1]) |
| 167 | + self.assertEqual(sorted(s), [1, 2, 3]) |
| 168 | + |
| 169 | + def test_set_from_string(self): |
| 170 | + s = set('abcabc') |
| 171 | + self.assertEqual(sorted(s), ['a', 'b', 'c']) |
| 172 | + |
| 173 | + def test_frozenset_basic(self): |
| 174 | + fs = frozenset([1, 2, 3]) |
| 175 | + self.assertEqual(sorted(fs), [1, 2, 3]) |
| 176 | + self.assertIn(1, fs) |
| 177 | + self.assertNotIn(4, fs) |
| 178 | + self.assertEqual(len(fs), 3) |
| 179 | + |
| 180 | + def test_frozenset_equality(self): |
| 181 | + self.assertEqual(frozenset(), frozenset()) |
| 182 | + self.assertEqual(frozenset([1, 2]), frozenset([2, 1])) |
| 183 | + self.assertNotEqual(frozenset([1]), frozenset([1, 2])) |
| 184 | + |
| 185 | + def test_mixed_set_frozenset_equality(self): |
| 186 | + self.assertEqual({1, 2, 3}, frozenset([1, 2, 3])) |
| 187 | + self.assertEqual(frozenset([1, 2, 3]), {1, 2, 3}) |
| 188 | + |
| 189 | + |
| 190 | +if __name__ == "__main__": |
| 191 | + unittest.main() |
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