(self)
| 97 | d.maxlen = 10 |
| 98 | |
| 99 | def test_count(self): |
| 100 | for s in ('', 'abracadabra', 'simsalabim'*500+'abc'): |
| 101 | s = list(s) |
| 102 | d = deque(s) |
| 103 | for letter in 'abcdefghijklmnopqrstuvwxyz': |
| 104 | self.assertEqual(s.count(letter), d.count(letter), (s, d, letter)) |
| 105 | self.assertRaises(TypeError, d.count) # too few args |
| 106 | self.assertRaises(TypeError, d.count, 1, 2) # too many args |
| 107 | class BadCompare: |
| 108 | def __eq__(self, other): |
| 109 | raise ArithmeticError |
| 110 | d = deque([1, 2, BadCompare(), 3]) |
| 111 | self.assertRaises(ArithmeticError, d.count, 2) |
| 112 | d = deque([1, 2, 3]) |
| 113 | self.assertRaises(ArithmeticError, d.count, BadCompare()) |
| 114 | class MutatingCompare: |
| 115 | def __eq__(self, other): |
| 116 | self.d.pop() |
| 117 | return True |
| 118 | m = MutatingCompare() |
| 119 | d = deque([1, 2, 3, m, 4, 5]) |
| 120 | m.d = d |
| 121 | self.assertRaises(RuntimeError, d.count, 3) |
| 122 | |
| 123 | # test issue11004 |
| 124 | # block advance failed after rotation aligned elements on right side of block |
| 125 | d = deque([None]*16) |
| 126 | for i in range(len(d)): |
| 127 | d.rotate(-1) |
| 128 | d.rotate(1) |
| 129 | self.assertEqual(d.count(1), 0) |
| 130 | self.assertEqual(d.count(None), 16) |
| 131 | |
| 132 | def test_comparisons(self): |
| 133 | d = deque('xabc') |
nothing calls this directly
no test coverage detected