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759 lines
28 KiB
Python
759 lines
28 KiB
Python
import unittest
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import inspect
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import pickle
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import sys
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from decimal import Decimal
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from fractions import Fraction
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from test import support
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from test.support import import_helper
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py_operator = import_helper.import_fresh_module('operator',
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blocked=['_operator'])
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c_operator = import_helper.import_fresh_module('operator',
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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 BadIterable:
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def __iter__(self):
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raise ZeroDivisionError
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class OperatorTestCase:
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def test___all__(self):
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operator = self.module
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actual_all = set(operator.__all__)
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computed_all = set()
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for name in vars(operator):
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if name.startswith('__'):
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continue
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value = getattr(operator, name)
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if value.__module__ in ('operator', '_operator'):
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computed_all.add(name)
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self.assertSetEqual(computed_all, actual_all)
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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.assertEqual(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.assertEqual(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.assertEqual(operator.concat('py', 'thon'), 'python')
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self.assertEqual(operator.concat([1, 2], [3, 4]), [1, 2, 3, 4])
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self.assertEqual(operator.concat(Seq1([5, 6]), Seq1([7])), [5, 6, 7])
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self.assertEqual(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.assertRaises(ZeroDivisionError, operator.countOf, BadIterable(), 1)
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self.assertEqual(operator.countOf([1, 2, 1, 3, 1, 4], 3), 1)
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self.assertEqual(operator.countOf([1, 2, 1, 3, 1, 4], 5), 0)
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# is but not ==
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nan = float("nan")
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self.assertEqual(operator.countOf([nan, nan, 21], nan), 2)
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# == but not is
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self.assertEqual(operator.countOf([{}, 1, {}, 2], {}), 2)
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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.assertIsNone(operator.delitem(a, 1))
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self.assertEqual(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.assertEqual(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.assertEqual(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.assertEqual(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.assertRaises(ZeroDivisionError, operator.indexOf, BadIterable(), 1)
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self.assertEqual(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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nan = float("nan")
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self.assertEqual(operator.indexOf([nan, nan, 21], nan), 0)
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self.assertEqual(operator.indexOf([{}, 1, {}, 2], {}), 0)
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it = iter('leave the iterator at exactly the position after the match')
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self.assertEqual(operator.indexOf(it, 'a'), 2)
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self.assertEqual(next(it), 'v')
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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.assertEqual(operator.lshift(5, 1), 10)
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self.assertEqual(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.assertEqual(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.assertEqual(operator.mul(5, 2), 10)
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def test_matmul(self):
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operator = self.module
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self.assertRaises(TypeError, operator.matmul)
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self.assertRaises(TypeError, operator.matmul, 42, 42)
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class M:
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def __matmul__(self, other):
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return other - 1
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self.assertEqual(M() @ 42, 41)
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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.assertEqual(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.assertEqual(operator.rshift(5, 1), 2)
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self.assertEqual(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.assertRaises(ZeroDivisionError, operator.contains, BadIterable(), 1)
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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.assertIsNone(operator.setitem(a, 0, 2))
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self.assertEqual(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.assertEqual(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.assertEqual(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_is_none(self):
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operator = self.module
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a = 'xyzpdq'
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b = ''
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c = None
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self.assertRaises(TypeError, operator.is_none)
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self.assertFalse(operator.is_none(a))
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self.assertFalse(operator.is_none(b))
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self.assertTrue(operator.is_none(c))
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def test_is_not_none(self):
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operator = self.module
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a = 'xyzpdq'
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b = ''
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c = None
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self.assertRaises(TypeError, operator.is_not_none)
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self.assertTrue(operator.is_not_none(a))
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self.assertTrue(operator.is_not_none(b))
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self.assertFalse(operator.is_not_none(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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self.assertRaises(TypeError, f)
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self.assertRaises(TypeError, f, a, 'dent')
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self.assertRaises(TypeError, f, a, surname='dent')
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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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self.assertRaises(TypeError, f)
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self.assertRaises(TypeError, f, a, 3)
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self.assertRaises(TypeError, f, a, size=3)
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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'))
|
|
self.assertRaises(TypeError, operator.itemgetter(2, 'x', 5), data)
|
|
|
|
# interesting indices
|
|
t = tuple('abcde')
|
|
self.assertEqual(operator.itemgetter(-1)(t), 'e')
|
|
self.assertEqual(operator.itemgetter(slice(2, 4))(t), ('c', 'd'))
|
|
|
|
# interesting sequences
|
|
class T(tuple):
|
|
'Tuple subclass'
|
|
pass
|
|
self.assertEqual(operator.itemgetter(0)(T('abc')), 'a')
|
|
self.assertEqual(operator.itemgetter(0)(['a', 'b', 'c']), 'a')
|
|
self.assertEqual(operator.itemgetter(0)(range(100, 200)), 100)
|
|
|
|
def test_methodcaller(self):
|
|
operator = self.module
|
|
self.assertRaises(TypeError, operator.methodcaller)
|
|
self.assertRaises(TypeError, operator.methodcaller, 12)
|
|
class A:
|
|
def foo(self, *args, **kwds):
|
|
return args[0] + args[1]
|
|
def bar(self, f=42):
|
|
return f
|
|
def baz(*args, **kwds):
|
|
return kwds['name'], kwds['self']
|
|
a = A()
|
|
f = operator.methodcaller('foo')
|
|
self.assertRaises(IndexError, f, a)
|
|
f = operator.methodcaller('foo', 1, 2)
|
|
self.assertEqual(f(a), 3)
|
|
self.assertRaises(TypeError, f)
|
|
self.assertRaises(TypeError, f, a, 3)
|
|
self.assertRaises(TypeError, f, a, spam=3)
|
|
f = operator.methodcaller('bar')
|
|
self.assertEqual(f(a), 42)
|
|
self.assertRaises(TypeError, f, a, a)
|
|
f = operator.methodcaller('bar', f=5)
|
|
self.assertEqual(f(a), 5)
|
|
f = operator.methodcaller('baz', name='spam', self='eggs')
|
|
self.assertEqual(f(a), ('spam', 'eggs'))
|
|
|
|
def test_inplace(self):
|
|
operator = self.module
|
|
class C(object):
|
|
def __iadd__ (self, other): return "iadd"
|
|
def __iand__ (self, other): return "iand"
|
|
def __ifloordiv__(self, other): return "ifloordiv"
|
|
def __ilshift__ (self, other): return "ilshift"
|
|
def __imod__ (self, other): return "imod"
|
|
def __imul__ (self, other): return "imul"
|
|
def __imatmul__ (self, other): return "imatmul"
|
|
def __ior__ (self, other): return "ior"
|
|
def __ipow__ (self, other): return "ipow"
|
|
def __irshift__ (self, other): return "irshift"
|
|
def __isub__ (self, other): return "isub"
|
|
def __itruediv__ (self, other): return "itruediv"
|
|
def __ixor__ (self, other): return "ixor"
|
|
def __getitem__(self, other): return 5 # so that C is a sequence
|
|
c = C()
|
|
self.assertEqual(operator.iadd (c, 5), "iadd")
|
|
self.assertEqual(operator.iand (c, 5), "iand")
|
|
self.assertEqual(operator.ifloordiv(c, 5), "ifloordiv")
|
|
self.assertEqual(operator.ilshift (c, 5), "ilshift")
|
|
self.assertEqual(operator.imod (c, 5), "imod")
|
|
self.assertEqual(operator.imul (c, 5), "imul")
|
|
self.assertEqual(operator.imatmul (c, 5), "imatmul")
|
|
self.assertEqual(operator.ior (c, 5), "ior")
|
|
self.assertEqual(operator.ipow (c, 5), "ipow")
|
|
self.assertEqual(operator.irshift (c, 5), "irshift")
|
|
self.assertEqual(operator.isub (c, 5), "isub")
|
|
self.assertEqual(operator.itruediv (c, 5), "itruediv")
|
|
self.assertEqual(operator.ixor (c, 5), "ixor")
|
|
self.assertEqual(operator.iconcat (c, c), "iadd")
|
|
|
|
def test_iconcat_without_getitem(self):
|
|
operator = self.module
|
|
|
|
msg = "'int' object can't be concatenated"
|
|
with self.assertRaisesRegex(TypeError, msg):
|
|
operator.iconcat(1, 0.5)
|
|
|
|
def test_index(self):
|
|
operator = self.module
|
|
class X:
|
|
def __index__(self):
|
|
return 1
|
|
|
|
self.assertEqual(operator.index(X()), 1)
|
|
self.assertEqual(operator.index(0), 0)
|
|
self.assertEqual(operator.index(1), 1)
|
|
self.assertEqual(operator.index(2), 2)
|
|
with self.assertRaises((AttributeError, TypeError)):
|
|
operator.index(1.5)
|
|
with self.assertRaises((AttributeError, TypeError)):
|
|
operator.index(Fraction(3, 7))
|
|
with self.assertRaises((AttributeError, TypeError)):
|
|
operator.index(Decimal(1))
|
|
with self.assertRaises((AttributeError, TypeError)):
|
|
operator.index(None)
|
|
|
|
def test_not_(self):
|
|
operator = self.module
|
|
class C:
|
|
def __bool__(self):
|
|
raise SyntaxError
|
|
self.assertRaises(TypeError, operator.not_)
|
|
self.assertRaises(SyntaxError, operator.not_, C())
|
|
self.assertFalse(operator.not_(5))
|
|
self.assertFalse(operator.not_([0]))
|
|
self.assertTrue(operator.not_(0))
|
|
self.assertTrue(operator.not_([]))
|
|
|
|
def test_length_hint(self):
|
|
operator = self.module
|
|
class X(object):
|
|
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))
|
|
|
|
class Y: pass
|
|
|
|
msg = "'str' object cannot be interpreted as an integer"
|
|
with self.assertRaisesRegex(TypeError, msg):
|
|
operator.length_hint(X(2), "abc")
|
|
self.assertEqual(operator.length_hint(Y(), 10), 10)
|
|
|
|
def test_call(self):
|
|
operator = self.module
|
|
|
|
def func(*args, **kwargs): return args, kwargs
|
|
|
|
self.assertEqual(operator.call(func), ((), {}))
|
|
self.assertEqual(operator.call(func, 0, 1), ((0, 1), {}))
|
|
self.assertEqual(operator.call(func, a=2, obj=3),
|
|
((), {"a": 2, "obj": 3}))
|
|
self.assertEqual(operator.call(func, 0, 1, a=2, obj=3),
|
|
((0, 1), {"a": 2, "obj": 3}))
|
|
|
|
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)
|
|
|
|
def test_attrgetter_signature(self):
|
|
operator = self.module
|
|
sig = inspect.signature(operator.attrgetter)
|
|
self.assertEqual(str(sig), '(attr, /, *attrs)')
|
|
sig = inspect.signature(operator.attrgetter('x', 'z', 'y'))
|
|
self.assertEqual(str(sig), '(obj, /)')
|
|
|
|
def test_itemgetter_signature(self):
|
|
operator = self.module
|
|
sig = inspect.signature(operator.itemgetter)
|
|
self.assertEqual(str(sig), '(item, /, *items)')
|
|
sig = inspect.signature(operator.itemgetter(2, 3, 5))
|
|
self.assertEqual(str(sig), '(obj, /)')
|
|
|
|
def test_methodcaller_signature(self):
|
|
operator = self.module
|
|
sig = inspect.signature(operator.methodcaller)
|
|
self.assertEqual(str(sig), '(name, /, *args, **kwargs)')
|
|
sig = inspect.signature(operator.methodcaller('foo', 2, y=3))
|
|
self.assertEqual(str(sig), '(obj, /)')
|
|
|
|
|
|
class PyOperatorTestCase(OperatorTestCase, unittest.TestCase):
|
|
module = py_operator
|
|
|
|
@unittest.skipUnless(c_operator, 'requires _operator')
|
|
class COperatorTestCase(OperatorTestCase, unittest.TestCase):
|
|
module = c_operator
|
|
|
|
|
|
class OperatorPickleTestCase:
|
|
def copy(self, obj, proto):
|
|
with support.swap_item(sys.modules, 'operator', self.module):
|
|
pickled = pickle.dumps(obj, proto)
|
|
with support.swap_item(sys.modules, 'operator', self.module2):
|
|
return pickle.loads(pickled)
|
|
|
|
def test_attrgetter(self):
|
|
attrgetter = self.module.attrgetter
|
|
class A:
|
|
pass
|
|
a = A()
|
|
a.x = 'X'
|
|
a.y = 'Y'
|
|
a.z = 'Z'
|
|
a.t = A()
|
|
a.t.u = A()
|
|
a.t.u.v = 'V'
|
|
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
|
|
with self.subTest(proto=proto):
|
|
f = attrgetter('x')
|
|
f2 = self.copy(f, proto)
|
|
self.assertEqual(repr(f2), repr(f))
|
|
self.assertEqual(f2(a), f(a))
|
|
# multiple gets
|
|
f = attrgetter('x', 'y', 'z')
|
|
f2 = self.copy(f, proto)
|
|
self.assertEqual(repr(f2), repr(f))
|
|
self.assertEqual(f2(a), f(a))
|
|
# recursive gets
|
|
f = attrgetter('t.u.v')
|
|
f2 = self.copy(f, proto)
|
|
self.assertEqual(repr(f2), repr(f))
|
|
self.assertEqual(f2(a), f(a))
|
|
|
|
def test_itemgetter(self):
|
|
itemgetter = self.module.itemgetter
|
|
a = 'ABCDE'
|
|
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
|
|
with self.subTest(proto=proto):
|
|
f = itemgetter(2)
|
|
f2 = self.copy(f, proto)
|
|
self.assertEqual(repr(f2), repr(f))
|
|
self.assertEqual(f2(a), f(a))
|
|
# multiple gets
|
|
f = itemgetter(2, 0, 4)
|
|
f2 = self.copy(f, proto)
|
|
self.assertEqual(repr(f2), repr(f))
|
|
self.assertEqual(f2(a), f(a))
|
|
|
|
def test_methodcaller(self):
|
|
methodcaller = self.module.methodcaller
|
|
class A:
|
|
def foo(self, *args, **kwds):
|
|
return args[0] + args[1]
|
|
def bar(self, f=42):
|
|
return f
|
|
def baz(*args, **kwds):
|
|
return kwds['name'], kwds['self']
|
|
a = A()
|
|
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
|
|
with self.subTest(proto=proto):
|
|
f = methodcaller('bar')
|
|
f2 = self.copy(f, proto)
|
|
self.assertEqual(repr(f2), repr(f))
|
|
self.assertEqual(f2(a), f(a))
|
|
# positional args
|
|
f = methodcaller('foo', 1, 2)
|
|
f2 = self.copy(f, proto)
|
|
self.assertEqual(repr(f2), repr(f))
|
|
self.assertEqual(f2(a), f(a))
|
|
# keyword args
|
|
f = methodcaller('bar', f=5)
|
|
f2 = self.copy(f, proto)
|
|
self.assertEqual(repr(f2), repr(f))
|
|
self.assertEqual(f2(a), f(a))
|
|
f = methodcaller('baz', self='eggs', name='spam')
|
|
f2 = self.copy(f, proto)
|
|
# Can't test repr consistently with multiple keyword args
|
|
self.assertEqual(f2(a), f(a))
|
|
|
|
class PyPyOperatorPickleTestCase(OperatorPickleTestCase, unittest.TestCase):
|
|
module = py_operator
|
|
module2 = py_operator
|
|
|
|
@unittest.skipUnless(c_operator, 'requires _operator')
|
|
class PyCOperatorPickleTestCase(OperatorPickleTestCase, unittest.TestCase):
|
|
module = py_operator
|
|
module2 = c_operator
|
|
|
|
@unittest.skipUnless(c_operator, 'requires _operator')
|
|
class CPyOperatorPickleTestCase(OperatorPickleTestCase, unittest.TestCase):
|
|
module = c_operator
|
|
module2 = py_operator
|
|
|
|
@unittest.skipUnless(c_operator, 'requires _operator')
|
|
class CCOperatorPickleTestCase(OperatorPickleTestCase, unittest.TestCase):
|
|
module = c_operator
|
|
module2 = c_operator
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|