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485 lines
18 KiB
Python
485 lines
18 KiB
Python
import unittest
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from test import support
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py_operator = support.import_fresh_module('operator', blocked=['_operator'])
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c_operator = support.import_fresh_module('operator', fresh=['_operator'])
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class Seq1:
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def __init__(self, lst):
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self.lst = lst
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def __len__(self):
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return len(self.lst)
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def __getitem__(self, i):
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return self.lst[i]
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def __add__(self, other):
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return self.lst + other.lst
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def __mul__(self, other):
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return self.lst * other
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def __rmul__(self, other):
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return other * self.lst
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class Seq2(object):
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def __init__(self, lst):
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self.lst = lst
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def __len__(self):
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return len(self.lst)
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def __getitem__(self, i):
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return self.lst[i]
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def __add__(self, other):
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return self.lst + other.lst
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def __mul__(self, other):
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return self.lst * other
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def __rmul__(self, other):
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return other * self.lst
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class OperatorTestCase:
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def test_lt(self):
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operator = self.module
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self.assertRaises(TypeError, operator.lt)
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self.assertRaises(TypeError, operator.lt, 1j, 2j)
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self.assertFalse(operator.lt(1, 0))
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self.assertFalse(operator.lt(1, 0.0))
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self.assertFalse(operator.lt(1, 1))
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self.assertFalse(operator.lt(1, 1.0))
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self.assertTrue(operator.lt(1, 2))
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self.assertTrue(operator.lt(1, 2.0))
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def test_le(self):
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operator = self.module
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self.assertRaises(TypeError, operator.le)
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self.assertRaises(TypeError, operator.le, 1j, 2j)
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self.assertFalse(operator.le(1, 0))
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self.assertFalse(operator.le(1, 0.0))
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self.assertTrue(operator.le(1, 1))
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self.assertTrue(operator.le(1, 1.0))
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self.assertTrue(operator.le(1, 2))
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self.assertTrue(operator.le(1, 2.0))
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def test_eq(self):
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operator = self.module
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class C(object):
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def __eq__(self, other):
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raise SyntaxError
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self.assertRaises(TypeError, operator.eq)
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self.assertRaises(SyntaxError, operator.eq, C(), C())
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self.assertFalse(operator.eq(1, 0))
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self.assertFalse(operator.eq(1, 0.0))
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self.assertTrue(operator.eq(1, 1))
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self.assertTrue(operator.eq(1, 1.0))
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self.assertFalse(operator.eq(1, 2))
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self.assertFalse(operator.eq(1, 2.0))
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def test_ne(self):
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operator = self.module
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class C(object):
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def __ne__(self, other):
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raise SyntaxError
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self.assertRaises(TypeError, operator.ne)
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self.assertRaises(SyntaxError, operator.ne, C(), C())
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self.assertTrue(operator.ne(1, 0))
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self.assertTrue(operator.ne(1, 0.0))
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self.assertFalse(operator.ne(1, 1))
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self.assertFalse(operator.ne(1, 1.0))
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self.assertTrue(operator.ne(1, 2))
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self.assertTrue(operator.ne(1, 2.0))
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def test_ge(self):
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operator = self.module
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self.assertRaises(TypeError, operator.ge)
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self.assertRaises(TypeError, operator.ge, 1j, 2j)
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self.assertTrue(operator.ge(1, 0))
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self.assertTrue(operator.ge(1, 0.0))
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self.assertTrue(operator.ge(1, 1))
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self.assertTrue(operator.ge(1, 1.0))
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self.assertFalse(operator.ge(1, 2))
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self.assertFalse(operator.ge(1, 2.0))
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def test_gt(self):
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operator = self.module
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self.assertRaises(TypeError, operator.gt)
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self.assertRaises(TypeError, operator.gt, 1j, 2j)
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self.assertTrue(operator.gt(1, 0))
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self.assertTrue(operator.gt(1, 0.0))
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self.assertFalse(operator.gt(1, 1))
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self.assertFalse(operator.gt(1, 1.0))
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self.assertFalse(operator.gt(1, 2))
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self.assertFalse(operator.gt(1, 2.0))
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def test_abs(self):
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operator = self.module
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self.assertRaises(TypeError, operator.abs)
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self.assertRaises(TypeError, operator.abs, None)
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self.assertEqual(operator.abs(-1), 1)
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self.assertEqual(operator.abs(1), 1)
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def test_add(self):
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operator = self.module
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self.assertRaises(TypeError, operator.add)
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self.assertRaises(TypeError, operator.add, None, None)
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self.assertTrue(operator.add(3, 4) == 7)
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def test_bitwise_and(self):
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operator = self.module
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self.assertRaises(TypeError, operator.and_)
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self.assertRaises(TypeError, operator.and_, None, None)
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self.assertTrue(operator.and_(0xf, 0xa) == 0xa)
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def test_concat(self):
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operator = self.module
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self.assertRaises(TypeError, operator.concat)
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self.assertRaises(TypeError, operator.concat, None, None)
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self.assertTrue(operator.concat('py', 'thon') == 'python')
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self.assertTrue(operator.concat([1, 2], [3, 4]) == [1, 2, 3, 4])
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self.assertTrue(operator.concat(Seq1([5, 6]), Seq1([7])) == [5, 6, 7])
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self.assertTrue(operator.concat(Seq2([5, 6]), Seq2([7])) == [5, 6, 7])
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self.assertRaises(TypeError, operator.concat, 13, 29)
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def test_countOf(self):
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operator = self.module
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self.assertRaises(TypeError, operator.countOf)
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self.assertRaises(TypeError, operator.countOf, None, None)
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self.assertTrue(operator.countOf([1, 2, 1, 3, 1, 4], 3) == 1)
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self.assertTrue(operator.countOf([1, 2, 1, 3, 1, 4], 5) == 0)
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def test_delitem(self):
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operator = self.module
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a = [4, 3, 2, 1]
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self.assertRaises(TypeError, operator.delitem, a)
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self.assertRaises(TypeError, operator.delitem, a, None)
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self.assertTrue(operator.delitem(a, 1) is None)
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self.assertTrue(a == [4, 2, 1])
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def test_floordiv(self):
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operator = self.module
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self.assertRaises(TypeError, operator.floordiv, 5)
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self.assertRaises(TypeError, operator.floordiv, None, None)
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self.assertTrue(operator.floordiv(5, 2) == 2)
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def test_truediv(self):
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operator = self.module
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self.assertRaises(TypeError, operator.truediv, 5)
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self.assertRaises(TypeError, operator.truediv, None, None)
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self.assertTrue(operator.truediv(5, 2) == 2.5)
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def test_getitem(self):
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operator = self.module
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a = range(10)
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self.assertRaises(TypeError, operator.getitem)
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self.assertRaises(TypeError, operator.getitem, a, None)
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self.assertTrue(operator.getitem(a, 2) == 2)
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def test_indexOf(self):
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operator = self.module
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self.assertRaises(TypeError, operator.indexOf)
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self.assertRaises(TypeError, operator.indexOf, None, None)
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self.assertTrue(operator.indexOf([4, 3, 2, 1], 3) == 1)
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self.assertRaises(ValueError, operator.indexOf, [4, 3, 2, 1], 0)
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def test_invert(self):
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operator = self.module
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self.assertRaises(TypeError, operator.invert)
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self.assertRaises(TypeError, operator.invert, None)
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self.assertEqual(operator.inv(4), -5)
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def test_lshift(self):
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operator = self.module
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self.assertRaises(TypeError, operator.lshift)
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self.assertRaises(TypeError, operator.lshift, None, 42)
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self.assertTrue(operator.lshift(5, 1) == 10)
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self.assertTrue(operator.lshift(5, 0) == 5)
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self.assertRaises(ValueError, operator.lshift, 2, -1)
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def test_mod(self):
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operator = self.module
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self.assertRaises(TypeError, operator.mod)
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self.assertRaises(TypeError, operator.mod, None, 42)
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self.assertTrue(operator.mod(5, 2) == 1)
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def test_mul(self):
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operator = self.module
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self.assertRaises(TypeError, operator.mul)
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self.assertRaises(TypeError, operator.mul, None, None)
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self.assertTrue(operator.mul(5, 2) == 10)
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def test_neg(self):
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operator = self.module
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self.assertRaises(TypeError, operator.neg)
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self.assertRaises(TypeError, operator.neg, None)
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self.assertEqual(operator.neg(5), -5)
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self.assertEqual(operator.neg(-5), 5)
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self.assertEqual(operator.neg(0), 0)
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self.assertEqual(operator.neg(-0), 0)
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def test_bitwise_or(self):
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operator = self.module
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self.assertRaises(TypeError, operator.or_)
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self.assertRaises(TypeError, operator.or_, None, None)
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self.assertTrue(operator.or_(0xa, 0x5) == 0xf)
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def test_pos(self):
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operator = self.module
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self.assertRaises(TypeError, operator.pos)
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self.assertRaises(TypeError, operator.pos, None)
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self.assertEqual(operator.pos(5), 5)
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self.assertEqual(operator.pos(-5), -5)
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self.assertEqual(operator.pos(0), 0)
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self.assertEqual(operator.pos(-0), 0)
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def test_pow(self):
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operator = self.module
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self.assertRaises(TypeError, operator.pow)
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self.assertRaises(TypeError, operator.pow, None, None)
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self.assertEqual(operator.pow(3,5), 3**5)
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self.assertRaises(TypeError, operator.pow, 1)
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self.assertRaises(TypeError, operator.pow, 1, 2, 3)
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def test_rshift(self):
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operator = self.module
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self.assertRaises(TypeError, operator.rshift)
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self.assertRaises(TypeError, operator.rshift, None, 42)
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self.assertTrue(operator.rshift(5, 1) == 2)
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self.assertTrue(operator.rshift(5, 0) == 5)
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self.assertRaises(ValueError, operator.rshift, 2, -1)
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def test_contains(self):
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operator = self.module
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self.assertRaises(TypeError, operator.contains)
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self.assertRaises(TypeError, operator.contains, None, None)
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self.assertTrue(operator.contains(range(4), 2))
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self.assertFalse(operator.contains(range(4), 5))
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def test_setitem(self):
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operator = self.module
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a = list(range(3))
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self.assertRaises(TypeError, operator.setitem, a)
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self.assertRaises(TypeError, operator.setitem, a, None, None)
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self.assertTrue(operator.setitem(a, 0, 2) is None)
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self.assertTrue(a == [2, 1, 2])
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self.assertRaises(IndexError, operator.setitem, a, 4, 2)
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def test_sub(self):
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operator = self.module
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self.assertRaises(TypeError, operator.sub)
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self.assertRaises(TypeError, operator.sub, None, None)
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self.assertTrue(operator.sub(5, 2) == 3)
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def test_truth(self):
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operator = self.module
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class C(object):
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def __bool__(self):
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raise SyntaxError
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self.assertRaises(TypeError, operator.truth)
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self.assertRaises(SyntaxError, operator.truth, C())
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self.assertTrue(operator.truth(5))
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self.assertTrue(operator.truth([0]))
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self.assertFalse(operator.truth(0))
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self.assertFalse(operator.truth([]))
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def test_bitwise_xor(self):
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operator = self.module
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self.assertRaises(TypeError, operator.xor)
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self.assertRaises(TypeError, operator.xor, None, None)
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self.assertTrue(operator.xor(0xb, 0xc) == 0x7)
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def test_is(self):
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operator = self.module
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a = b = 'xyzpdq'
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c = a[:3] + b[3:]
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self.assertRaises(TypeError, operator.is_)
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self.assertTrue(operator.is_(a, b))
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self.assertFalse(operator.is_(a,c))
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def test_is_not(self):
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operator = self.module
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a = b = 'xyzpdq'
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c = a[:3] + b[3:]
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self.assertRaises(TypeError, operator.is_not)
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self.assertFalse(operator.is_not(a, b))
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self.assertTrue(operator.is_not(a,c))
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def test_attrgetter(self):
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operator = self.module
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class A:
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pass
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a = A()
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a.name = 'arthur'
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f = operator.attrgetter('name')
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self.assertEqual(f(a), 'arthur')
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f = operator.attrgetter('rank')
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self.assertRaises(AttributeError, f, a)
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self.assertRaises(TypeError, operator.attrgetter, 2)
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self.assertRaises(TypeError, operator.attrgetter)
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# multiple gets
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record = A()
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record.x = 'X'
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record.y = 'Y'
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record.z = 'Z'
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self.assertEqual(operator.attrgetter('x','z','y')(record), ('X', 'Z', 'Y'))
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self.assertRaises(TypeError, operator.attrgetter, ('x', (), 'y'))
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class C(object):
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def __getattr__(self, name):
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raise SyntaxError
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self.assertRaises(SyntaxError, operator.attrgetter('foo'), C())
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# recursive gets
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a = A()
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a.name = 'arthur'
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a.child = A()
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a.child.name = 'thomas'
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f = operator.attrgetter('child.name')
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self.assertEqual(f(a), 'thomas')
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self.assertRaises(AttributeError, f, a.child)
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f = operator.attrgetter('name', 'child.name')
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self.assertEqual(f(a), ('arthur', 'thomas'))
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f = operator.attrgetter('name', 'child.name', 'child.child.name')
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self.assertRaises(AttributeError, f, a)
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f = operator.attrgetter('child.')
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self.assertRaises(AttributeError, f, a)
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f = operator.attrgetter('.child')
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self.assertRaises(AttributeError, f, a)
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a.child.child = A()
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a.child.child.name = 'johnson'
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f = operator.attrgetter('child.child.name')
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self.assertEqual(f(a), 'johnson')
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f = operator.attrgetter('name', 'child.name', 'child.child.name')
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self.assertEqual(f(a), ('arthur', 'thomas', 'johnson'))
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def test_itemgetter(self):
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operator = self.module
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a = 'ABCDE'
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f = operator.itemgetter(2)
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self.assertEqual(f(a), 'C')
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f = operator.itemgetter(10)
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self.assertRaises(IndexError, f, a)
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class C(object):
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def __getitem__(self, name):
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raise SyntaxError
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self.assertRaises(SyntaxError, operator.itemgetter(42), C())
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f = operator.itemgetter('name')
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self.assertRaises(TypeError, f, a)
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self.assertRaises(TypeError, operator.itemgetter)
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d = dict(key='val')
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f = operator.itemgetter('key')
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self.assertEqual(f(d), 'val')
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f = operator.itemgetter('nonkey')
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self.assertRaises(KeyError, f, d)
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# example used in the docs
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inventory = [('apple', 3), ('banana', 2), ('pear', 5), ('orange', 1)]
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getcount = operator.itemgetter(1)
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self.assertEqual(list(map(getcount, inventory)), [3, 2, 5, 1])
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self.assertEqual(sorted(inventory, key=getcount),
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[('orange', 1), ('banana', 2), ('apple', 3), ('pear', 5)])
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# multiple gets
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data = list(map(str, range(20)))
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self.assertEqual(operator.itemgetter(2,10,5)(data), ('2', '10', '5'))
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self.assertRaises(TypeError, operator.itemgetter(2, 'x', 5), data)
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def test_methodcaller(self):
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operator = self.module
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self.assertRaises(TypeError, operator.methodcaller)
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class A:
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def foo(self, *args, **kwds):
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return args[0] + args[1]
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def bar(self, f=42):
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return f
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def baz(*args, **kwds):
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return kwds['name'], kwds['self']
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a = A()
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f = operator.methodcaller('foo')
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self.assertRaises(IndexError, f, a)
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f = operator.methodcaller('foo', 1, 2)
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self.assertEqual(f(a), 3)
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f = operator.methodcaller('bar')
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self.assertEqual(f(a), 42)
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self.assertRaises(TypeError, f, a, a)
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f = operator.methodcaller('bar', f=5)
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self.assertEqual(f(a), 5)
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f = operator.methodcaller('baz', name='spam', self='eggs')
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self.assertEqual(f(a), ('spam', 'eggs'))
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def test_inplace(self):
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operator = self.module
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class C(object):
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def __iadd__ (self, other): return "iadd"
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def __iand__ (self, other): return "iand"
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def __ifloordiv__(self, other): return "ifloordiv"
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def __ilshift__ (self, other): return "ilshift"
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def __imod__ (self, other): return "imod"
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def __imul__ (self, other): return "imul"
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def __ior__ (self, other): return "ior"
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def __ipow__ (self, other): return "ipow"
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def __irshift__ (self, other): return "irshift"
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def __isub__ (self, other): return "isub"
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def __itruediv__ (self, other): return "itruediv"
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def __ixor__ (self, other): return "ixor"
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def __getitem__(self, other): return 5 # so that C is a sequence
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c = C()
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self.assertEqual(operator.iadd (c, 5), "iadd")
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self.assertEqual(operator.iand (c, 5), "iand")
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self.assertEqual(operator.ifloordiv(c, 5), "ifloordiv")
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self.assertEqual(operator.ilshift (c, 5), "ilshift")
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self.assertEqual(operator.imod (c, 5), "imod")
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self.assertEqual(operator.imul (c, 5), "imul")
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self.assertEqual(operator.ior (c, 5), "ior")
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self.assertEqual(operator.ipow (c, 5), "ipow")
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self.assertEqual(operator.irshift (c, 5), "irshift")
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self.assertEqual(operator.isub (c, 5), "isub")
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self.assertEqual(operator.itruediv (c, 5), "itruediv")
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self.assertEqual(operator.ixor (c, 5), "ixor")
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self.assertEqual(operator.iconcat (c, c), "iadd")
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def test_length_hint(self):
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operator = self.module
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class X(object):
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def __init__(self, value):
|
|
self.value = value
|
|
|
|
def __length_hint__(self):
|
|
if type(self.value) is type:
|
|
raise self.value
|
|
else:
|
|
return self.value
|
|
|
|
self.assertEqual(operator.length_hint([], 2), 0)
|
|
self.assertEqual(operator.length_hint(iter([1, 2, 3])), 3)
|
|
|
|
self.assertEqual(operator.length_hint(X(2)), 2)
|
|
self.assertEqual(operator.length_hint(X(NotImplemented), 4), 4)
|
|
self.assertEqual(operator.length_hint(X(TypeError), 12), 12)
|
|
with self.assertRaises(TypeError):
|
|
operator.length_hint(X("abc"))
|
|
with self.assertRaises(ValueError):
|
|
operator.length_hint(X(-2))
|
|
with self.assertRaises(LookupError):
|
|
operator.length_hint(X(LookupError))
|
|
|
|
def test_dunder_is_original(self):
|
|
operator = self.module
|
|
|
|
names = [name for name in dir(operator) if not name.startswith('_')]
|
|
for name in names:
|
|
orig = getattr(operator, name)
|
|
dunder = getattr(operator, '__' + name.strip('_') + '__', None)
|
|
if dunder:
|
|
self.assertIs(dunder, orig)
|
|
|
|
class PyOperatorTestCase(OperatorTestCase, unittest.TestCase):
|
|
module = py_operator
|
|
|
|
@unittest.skipUnless(c_operator, 'requires _operator')
|
|
class COperatorTestCase(OperatorTestCase, unittest.TestCase):
|
|
module = c_operator
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|