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Copy pathtest_operator.py
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629 lines (557 loc) · 23.4 KB
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import unittest
import pickle
import sys
from test import support
py_operator = support.import_fresh_module('operator', blocked=['_operator'])
c_operator = support.import_fresh_module('operator', fresh=['_operator'])
class Seq1:
def __init__(self, lst):
self.lst = lst
def __len__(self):
return len(self.lst)
def __getitem__(self, i):
return self.lst[i]
def __add__(self, other):
return self.lst + other.lst
def __mul__(self, other):
return self.lst * other
def __rmul__(self, other):
return other * self.lst
class Seq2(object):
def __init__(self, lst):
self.lst = lst
def __len__(self):
return len(self.lst)
def __getitem__(self, i):
return self.lst[i]
def __add__(self, other):
return self.lst + other.lst
def __mul__(self, other):
return self.lst * other
def __rmul__(self, other):
return other * self.lst
class OperatorTestCase:
def test_lt(self):
operator = self.module
self.assertRaises(TypeError, operator.lt)
self.assertRaises(TypeError, operator.lt, 1j, 2j)
self.assertFalse(operator.lt(1, 0))
self.assertFalse(operator.lt(1, 0.0))
self.assertFalse(operator.lt(1, 1))
self.assertFalse(operator.lt(1, 1.0))
self.assertTrue(operator.lt(1, 2))
self.assertTrue(operator.lt(1, 2.0))
def test_le(self):
operator = self.module
self.assertRaises(TypeError, operator.le)
self.assertRaises(TypeError, operator.le, 1j, 2j)
self.assertFalse(operator.le(1, 0))
self.assertFalse(operator.le(1, 0.0))
self.assertTrue(operator.le(1, 1))
self.assertTrue(operator.le(1, 1.0))
self.assertTrue(operator.le(1, 2))
self.assertTrue(operator.le(1, 2.0))
def test_eq(self):
operator = self.module
class C(object):
def __eq__(self, other):
raise SyntaxError
self.assertRaises(TypeError, operator.eq)
self.assertRaises(SyntaxError, operator.eq, C(), C())
self.assertFalse(operator.eq(1, 0))
self.assertFalse(operator.eq(1, 0.0))
self.assertTrue(operator.eq(1, 1))
self.assertTrue(operator.eq(1, 1.0))
self.assertFalse(operator.eq(1, 2))
self.assertFalse(operator.eq(1, 2.0))
def test_ne(self):
operator = self.module
class C(object):
def __ne__(self, other):
raise SyntaxError
self.assertRaises(TypeError, operator.ne)
self.assertRaises(SyntaxError, operator.ne, C(), C())
self.assertTrue(operator.ne(1, 0))
self.assertTrue(operator.ne(1, 0.0))
self.assertFalse(operator.ne(1, 1))
self.assertFalse(operator.ne(1, 1.0))
self.assertTrue(operator.ne(1, 2))
self.assertTrue(operator.ne(1, 2.0))
def test_ge(self):
operator = self.module
self.assertRaises(TypeError, operator.ge)
self.assertRaises(TypeError, operator.ge, 1j, 2j)
self.assertTrue(operator.ge(1, 0))
self.assertTrue(operator.ge(1, 0.0))
self.assertTrue(operator.ge(1, 1))
self.assertTrue(operator.ge(1, 1.0))
self.assertFalse(operator.ge(1, 2))
self.assertFalse(operator.ge(1, 2.0))
def test_gt(self):
operator = self.module
self.assertRaises(TypeError, operator.gt)
self.assertRaises(TypeError, operator.gt, 1j, 2j)
self.assertTrue(operator.gt(1, 0))
self.assertTrue(operator.gt(1, 0.0))
self.assertFalse(operator.gt(1, 1))
self.assertFalse(operator.gt(1, 1.0))
self.assertFalse(operator.gt(1, 2))
self.assertFalse(operator.gt(1, 2.0))
def test_abs(self):
operator = self.module
self.assertRaises(TypeError, operator.abs)
self.assertRaises(TypeError, operator.abs, None)
self.assertEqual(operator.abs(-1), 1)
self.assertEqual(operator.abs(1), 1)
def test_add(self):
operator = self.module
self.assertRaises(TypeError, operator.add)
self.assertRaises(TypeError, operator.add, None, None)
self.assertEqual(operator.add(3, 4), 7)
def test_bitwise_and(self):
operator = self.module
self.assertRaises(TypeError, operator.and_)
self.assertRaises(TypeError, operator.and_, None, None)
self.assertEqual(operator.and_(0xf, 0xa), 0xa)
def test_concat(self):
operator = self.module
self.assertRaises(TypeError, operator.concat)
self.assertRaises(TypeError, operator.concat, None, None)
self.assertEqual(operator.concat('py', 'thon'), 'python')
self.assertEqual(operator.concat([1, 2], [3, 4]), [1, 2, 3, 4])
self.assertEqual(operator.concat(Seq1([5, 6]), Seq1([7])), [5, 6, 7])
self.assertEqual(operator.concat(Seq2([5, 6]), Seq2([7])), [5, 6, 7])
self.assertRaises(TypeError, operator.concat, 13, 29)
def test_countOf(self):
operator = self.module
self.assertRaises(TypeError, operator.countOf)
self.assertRaises(TypeError, operator.countOf, None, None)
self.assertEqual(operator.countOf([1, 2, 1, 3, 1, 4], 3), 1)
self.assertEqual(operator.countOf([1, 2, 1, 3, 1, 4], 5), 0)
def test_delitem(self):
operator = self.module
a = [4, 3, 2, 1]
self.assertRaises(TypeError, operator.delitem, a)
self.assertRaises(TypeError, operator.delitem, a, None)
self.assertIsNone(operator.delitem(a, 1))
self.assertEqual(a, [4, 2, 1])
def test_floordiv(self):
operator = self.module
self.assertRaises(TypeError, operator.floordiv, 5)
self.assertRaises(TypeError, operator.floordiv, None, None)
self.assertEqual(operator.floordiv(5, 2), 2)
def test_truediv(self):
operator = self.module
self.assertRaises(TypeError, operator.truediv, 5)
self.assertRaises(TypeError, operator.truediv, None, None)
self.assertEqual(operator.truediv(5, 2), 2.5)
def test_getitem(self):
operator = self.module
a = range(10)
self.assertRaises(TypeError, operator.getitem)
self.assertRaises(TypeError, operator.getitem, a, None)
self.assertEqual(operator.getitem(a, 2), 2)
def test_indexOf(self):
operator = self.module
self.assertRaises(TypeError, operator.indexOf)
self.assertRaises(TypeError, operator.indexOf, None, None)
self.assertEqual(operator.indexOf([4, 3, 2, 1], 3), 1)
self.assertRaises(ValueError, operator.indexOf, [4, 3, 2, 1], 0)
def test_invert(self):
operator = self.module
self.assertRaises(TypeError, operator.invert)
self.assertRaises(TypeError, operator.invert, None)
self.assertEqual(operator.inv(4), -5)
def test_lshift(self):
operator = self.module
self.assertRaises(TypeError, operator.lshift)
self.assertRaises(TypeError, operator.lshift, None, 42)
self.assertEqual(operator.lshift(5, 1), 10)
self.assertEqual(operator.lshift(5, 0), 5)
self.assertRaises(ValueError, operator.lshift, 2, -1)
def test_mod(self):
operator = self.module
self.assertRaises(TypeError, operator.mod)
self.assertRaises(TypeError, operator.mod, None, 42)
self.assertEqual(operator.mod(5, 2), 1)
def test_mul(self):
operator = self.module
self.assertRaises(TypeError, operator.mul)
self.assertRaises(TypeError, operator.mul, None, None)
self.assertEqual(operator.mul(5, 2), 10)
def test_matmul(self):
operator = self.module
self.assertRaises(TypeError, operator.matmul)
self.assertRaises(TypeError, operator.matmul, 42, 42)
class M:
def __matmul__(self, other):
return other - 1
self.assertEqual(M() @ 42, 41)
def test_neg(self):
operator = self.module
self.assertRaises(TypeError, operator.neg)
self.assertRaises(TypeError, operator.neg, None)
self.assertEqual(operator.neg(5), -5)
self.assertEqual(operator.neg(-5), 5)
self.assertEqual(operator.neg(0), 0)
self.assertEqual(operator.neg(-0), 0)
def test_bitwise_or(self):
operator = self.module
self.assertRaises(TypeError, operator.or_)
self.assertRaises(TypeError, operator.or_, None, None)
self.assertEqual(operator.or_(0xa, 0x5), 0xf)
def test_pos(self):
operator = self.module
self.assertRaises(TypeError, operator.pos)
self.assertRaises(TypeError, operator.pos, None)
self.assertEqual(operator.pos(5), 5)
self.assertEqual(operator.pos(-5), -5)
self.assertEqual(operator.pos(0), 0)
self.assertEqual(operator.pos(-0), 0)
def test_pow(self):
operator = self.module
self.assertRaises(TypeError, operator.pow)
self.assertRaises(TypeError, operator.pow, None, None)
self.assertEqual(operator.pow(3,5), 3**5)
self.assertRaises(TypeError, operator.pow, 1)
self.assertRaises(TypeError, operator.pow, 1, 2, 3)
def test_rshift(self):
operator = self.module
self.assertRaises(TypeError, operator.rshift)
self.assertRaises(TypeError, operator.rshift, None, 42)
self.assertEqual(operator.rshift(5, 1), 2)
self.assertEqual(operator.rshift(5, 0), 5)
self.assertRaises(ValueError, operator.rshift, 2, -1)
def test_contains(self):
operator = self.module
self.assertRaises(TypeError, operator.contains)
self.assertRaises(TypeError, operator.contains, None, None)
self.assertTrue(operator.contains(range(4), 2))
self.assertFalse(operator.contains(range(4), 5))
def test_setitem(self):
operator = self.module
a = list(range(3))
self.assertRaises(TypeError, operator.setitem, a)
self.assertRaises(TypeError, operator.setitem, a, None, None)
self.assertIsNone(operator.setitem(a, 0, 2))
self.assertEqual(a, [2, 1, 2])
self.assertRaises(IndexError, operator.setitem, a, 4, 2)
def test_sub(self):
operator = self.module
self.assertRaises(TypeError, operator.sub)
self.assertRaises(TypeError, operator.sub, None, None)
self.assertEqual(operator.sub(5, 2), 3)
def test_truth(self):
operator = self.module
class C(object):
def __bool__(self):
raise SyntaxError
self.assertRaises(TypeError, operator.truth)
self.assertRaises(SyntaxError, operator.truth, C())
self.assertTrue(operator.truth(5))
self.assertTrue(operator.truth([0]))
self.assertFalse(operator.truth(0))
self.assertFalse(operator.truth([]))
def test_bitwise_xor(self):
operator = self.module
self.assertRaises(TypeError, operator.xor)
self.assertRaises(TypeError, operator.xor, None, None)
self.assertEqual(operator.xor(0xb, 0xc), 0x7)
def test_is(self):
operator = self.module
a = b = 'xyzpdq'
c = a[:3] + b[3:]
self.assertRaises(TypeError, operator.is_)
self.assertTrue(operator.is_(a, b))
self.assertFalse(operator.is_(a,c))
def test_is_not(self):
operator = self.module
a = b = 'xyzpdq'
c = a[:3] + b[3:]
self.assertRaises(TypeError, operator.is_not)
self.assertFalse(operator.is_not(a, b))
self.assertTrue(operator.is_not(a,c))
def test_attrgetter(self):
operator = self.module
class A:
pass
a = A()
a.name = 'arthur'
f = operator.attrgetter('name')
self.assertEqual(f(a), 'arthur')
self.assertRaises(TypeError, f)
self.assertRaises(TypeError, f, a, 'dent')
self.assertRaises(TypeError, f, a, surname='dent')
f = operator.attrgetter('rank')
self.assertRaises(AttributeError, f, a)
self.assertRaises(TypeError, operator.attrgetter, 2)
self.assertRaises(TypeError, operator.attrgetter)
# multiple gets
record = A()
record.x = 'X'
record.y = 'Y'
record.z = 'Z'
self.assertEqual(operator.attrgetter('x','z','y')(record), ('X', 'Z', 'Y'))
self.assertRaises(TypeError, operator.attrgetter, ('x', (), 'y'))
class C(object):
def __getattr__(self, name):
raise SyntaxError
self.assertRaises(SyntaxError, operator.attrgetter('foo'), C())
# recursive gets
a = A()
a.name = 'arthur'
a.child = A()
a.child.name = 'thomas'
f = operator.attrgetter('child.name')
self.assertEqual(f(a), 'thomas')
self.assertRaises(AttributeError, f, a.child)
f = operator.attrgetter('name', 'child.name')
self.assertEqual(f(a), ('arthur', 'thomas'))
f = operator.attrgetter('name', 'child.name', 'child.child.name')
self.assertRaises(AttributeError, f, a)
f = operator.attrgetter('child.')
self.assertRaises(AttributeError, f, a)
f = operator.attrgetter('.child')
self.assertRaises(AttributeError, f, a)
a.child.child = A()
a.child.child.name = 'johnson'
f = operator.attrgetter('child.child.name')
self.assertEqual(f(a), 'johnson')
f = operator.attrgetter('name', 'child.name', 'child.child.name')
self.assertEqual(f(a), ('arthur', 'thomas', 'johnson'))
def test_itemgetter(self):
operator = self.module
a = 'ABCDE'
f = operator.itemgetter(2)
self.assertEqual(f(a), 'C')
self.assertRaises(TypeError, f)
self.assertRaises(TypeError, f, a, 3)
self.assertRaises(TypeError, f, a, size=3)
f = operator.itemgetter(10)
self.assertRaises(IndexError, f, a)
class C(object):
def __getitem__(self, name):
raise SyntaxError
self.assertRaises(SyntaxError, operator.itemgetter(42), C())
f = operator.itemgetter('name')
self.assertRaises(TypeError, f, a)
self.assertRaises(TypeError, operator.itemgetter)
d = dict(key='val')
f = operator.itemgetter('key')
self.assertEqual(f(d), 'val')
f = operator.itemgetter('nonkey')
self.assertRaises(KeyError, f, d)
# example used in the docs
inventory = [('apple', 3), ('banana', 2), ('pear', 5), ('orange', 1)]
getcount = operator.itemgetter(1)
self.assertEqual(list(map(getcount, inventory)), [3, 2, 5, 1])
self.assertEqual(sorted(inventory, key=getcount),
[('orange', 1), ('banana', 2), ('apple', 3), ('pear', 5)])
# multiple gets
data = list(map(str, range(20)))
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")
@unittest.skip("TODO: RUSTPYTHON")
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))
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
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)
# TODO: RUSTPYTHON
@unittest.expectedFailure
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))
# TODO: RUSTPYTHON
@unittest.expectedFailure
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))
# TODO: RUSTPYTHON
@unittest.expectedFailure
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()
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