Python UserList.UserList方法代码示例

# 需要导入模块: import UserList [as 别名]
# 或者: from UserList import UserList [as 别名]
def test_cmp(self):
        self.assertEqual(cmp(-1, 1), -1)
        self.assertEqual(cmp(1, -1), 1)
        self.assertEqual(cmp(1, 1), 0)
        # verify that circular objects are not handled
        a = []; a.append(a)
        b = []; b.append(b)
        from UserList import UserList
        c = UserList(); c.append(c)
        self.assertRaises(RuntimeError, cmp, a, b)
        self.assertRaises(RuntimeError, cmp, b, c)
        self.assertRaises(RuntimeError, cmp, c, a)
        self.assertRaises(RuntimeError, cmp, a, c)
       # okay, now break the cycles
        a.pop(); b.pop(); c.pop()
        self.assertRaises(TypeError, cmp) 

# 需要导入模块: import UserList [as 别名]
# 或者: from UserList import UserList [as 别名]
def __reduce_ex__(self, *args, **kwargs):
        # The `list` reduce function returns an iterator as the fourth element
        # that is normally used for repopulating. Since we only inherit from
        # `list` for `isinstance` backward compatibility (Refs #17413) we
        # nullify this iterator as it would otherwise result in duplicate
        # entries. (Refs #23594)
        info = super(UserList, self).__reduce_ex__(*args, **kwargs)
        return info[:3] + (None, None)


# Utilities for time zone support in DateTimeField et al. 

# 需要导入模块: import UserList [as 别名]
# 或者: from UserList import UserList [as 别名]
def test_writelines_userlist(self):
        l = UserList([b'ab', b'cd', b'ef'])
        writer = self.MockRawIO()
        bufio = self.tp(writer, 8)
        bufio.writelines(l)
        bufio.flush()
        self.assertEqual(b''.join(writer._write_stack), b'abcdef') 

# 需要导入模块: import UserList [as 别名]
# 或者: from UserList import UserList [as 别名]
def test_precomputed(self):
        for func, data, elem, expected in self.precomputedCases:
            self.assertEqual(func(data, elem), expected)
            self.assertEqual(func(UserList(data), elem), expected) 

# 需要导入模块: import UserList [as 别名]
# 或者: from UserList import UserList [as 别名]
def test_vsBuiltinSort(self, n=500):
        from random import choice
        for insorted in (list(), UserList()):
            for i in xrange(n):
                digit = choice("0123456789")
                if digit in "02468":
                    f = self.module.insort_left
                else:
                    f = self.module.insort_right
                f(insorted, digit)
            self.assertEqual(sorted(insorted), insorted) 

# 需要导入模块: import UserList [as 别名]
# 或者: from UserList import UserList [as 别名]
def test_recursion(self):
        # Check that comparison for recursive objects fails gracefully
        from UserList import UserList
        a = UserList()
        b = UserList()
        a.append(b)
        b.append(a)
        self.assertRaises(RuntimeError, operator.eq, a, b)
        self.assertRaises(RuntimeError, operator.ne, a, b)
        self.assertRaises(RuntimeError, operator.lt, a, b)
        self.assertRaises(RuntimeError, operator.le, a, b)
        self.assertRaises(RuntimeError, operator.gt, a, b)
        self.assertRaises(RuntimeError, operator.ge, a, b)

        b.append(17)
        # Even recursive lists of different lengths are different,
        # but they cannot be ordered
        self.assertTrue(not (a == b))
        self.assertTrue(a != b)
        self.assertRaises(RuntimeError, operator.lt, a, b)
        self.assertRaises(RuntimeError, operator.le, a, b)
        self.assertRaises(RuntimeError, operator.gt, a, b)
        self.assertRaises(RuntimeError, operator.ge, a, b)
        a.append(17)
        self.assertRaises(RuntimeError, operator.eq, a, b)
        self.assertRaises(RuntimeError, operator.ne, a, b)
        a.insert(0, 11)
        b.insert(0, 12)
        self.assertTrue(not (a == b))
        self.assertTrue(a != b)
        self.assertTrue(a < b) 

# 需要导入模块: import UserList [as 别名]
# 或者: from UserList import UserList [as 别名]
def testWritelinesUserList(self):
        # verify writelines with instance sequence
        l = UserList(['1', '2'])
        self.f.writelines(l)
        self.f.close()
        self.f = open(TESTFN, 'rb')
        buf = self.f.read()
        self.assertEqual(buf, '12') 

# 需要导入模块: import UserList [as 别名]
# 或者: from UserList import UserList [as 别名]
def testWritelinesIntegersUserList(self):
        # verify writelines with integers in UserList
        l = UserList([1,2,3])
        self.assertRaises(TypeError, self.f.writelines, l) 

# 需要导入模块: import UserList [as 别名]
# 或者: from UserList import UserList [as 别名]
def testWritelinesUserList(self):
        # verify writelines with instance sequence
        l = UserList([b'1', b'2'])
        self.f.writelines(l)
        self.f.close()
        self.f = self.open(TESTFN, 'rb')
        buf = self.f.read()
        self.assertEqual(buf, b'12') 

# 需要导入模块: import UserList [as 别名]
# 或者: from UserList import UserList [as 别名]
def test_basic_proxy(self):
        o = C()
        self.check_proxy(o, weakref.proxy(o))

        L = UserList.UserList()
        p = weakref.proxy(L)
        self.assertFalse(p, "proxy for empty UserList should be false")
        p.append(12)
        self.assertEqual(len(L), 1)
        self.assertTrue(p, "proxy for non-empty UserList should be true")
        with test_support.check_py3k_warnings():
            p[:] = [2, 3]
        self.assertEqual(len(L), 2)
        self.assertEqual(len(p), 2)
        self.assertIn(3, p, "proxy didn't support __contains__() properly")
        p[1] = 5
        self.assertEqual(L[1], 5)
        self.assertEqual(p[1], 5)
        L2 = UserList.UserList(L)
        p2 = weakref.proxy(L2)
        self.assertEqual(p, p2)
        ## self.assertEqual(repr(L2), repr(p2))
        L3 = UserList.UserList(range(10))
        p3 = weakref.proxy(L3)
        with test_support.check_py3k_warnings():
            self.assertEqual(L3[:], p3[:])
            self.assertEqual(L3[5:], p3[5:])
            self.assertEqual(L3[:5], p3[:5])
            self.assertEqual(L3[2:5], p3[2:5]) 

# 需要导入模块: import UserList [as 别名]
# 或者: from UserList import UserList [as 别名]
def testWritelinesUserList(self):
        l = UserList([b'123', b'456'])
        self.f.writelines(l)
        self.f.close()
        self.f = _FileIO(TESTFN, 'rb')
        buf = self.f.read()
        self.assertEqual(buf, b'123456') 

# 需要导入模块: import UserList [as 别名]
# 或者: from UserList import UserList [as 别名]
def test_plain(self):
        f = self.makeCallable('a, b=1')
        self.assertEqualCallArgs(f, '2')
        self.assertEqualCallArgs(f, '2, 3')
        self.assertEqualCallArgs(f, 'a=2')
        self.assertEqualCallArgs(f, 'b=3, a=2')
        self.assertEqualCallArgs(f, '2, b=3')
        # expand *iterable / **mapping
        self.assertEqualCallArgs(f, '*(2,)')
        self.assertEqualCallArgs(f, '*[2]')
        self.assertEqualCallArgs(f, '*(2, 3)')
        self.assertEqualCallArgs(f, '*[2, 3]')
        self.assertEqualCallArgs(f, '**{"a":2}')
        self.assertEqualCallArgs(f, 'b=3, **{"a":2}')
        self.assertEqualCallArgs(f, '2, **{"b":3}')
        self.assertEqualCallArgs(f, '**{"b":3, "a":2}')
        # expand UserList / UserDict
        self.assertEqualCallArgs(f, '*UserList([2])')
        self.assertEqualCallArgs(f, '*UserList([2, 3])')
        self.assertEqualCallArgs(f, '**UserDict(a=2)')
        self.assertEqualCallArgs(f, '2, **UserDict(b=3)')
        self.assertEqualCallArgs(f, 'b=2, **UserDict(a=3)')
        # unicode keyword args
        self.assertEqualCallArgs(f, '**{u"a":2}')
        self.assertEqualCallArgs(f, 'b=3, **{u"a":2}')
        self.assertEqualCallArgs(f, '2, **{u"b":3}')
        self.assertEqualCallArgs(f, '**{u"b":3, u"a":2}') 

# 需要导入模块: import UserList [as 别名]
# 或者: from UserList import UserList [as 别名]
def test_varargs(self):
        f = self.makeCallable('a, b=1, *c')
        self.assertEqualCallArgs(f, '2')
        self.assertEqualCallArgs(f, '2, 3')
        self.assertEqualCallArgs(f, '2, 3, 4')
        self.assertEqualCallArgs(f, '*(2,3,4)')
        self.assertEqualCallArgs(f, '2, *[3,4]')
        self.assertEqualCallArgs(f, '2, 3, *UserList([4])') 

# 需要导入模块: import UserList [as 别名]
# 或者: from UserList import UserList [as 别名]
def test_tupleargs(self):
        f = self.makeCallable('(b,c), (d,(e,f))=(0,[1,2])')
        self.assertEqualCallArgs(f, '(2,3)')
        self.assertEqualCallArgs(f, '[2,3]')
        self.assertEqualCallArgs(f, 'UserList([2,3])')
        self.assertEqualCallArgs(f, '(2,3), (4,(5,6))')
        self.assertEqualCallArgs(f, '(2,3), (4,[5,6])')
        self.assertEqualCallArgs(f, '(2,3), [4,UserList([5,6])]') 

# 需要导入模块: import UserList [as 别名]
# 或者: from UserList import UserList [as 别名]
def test_multiple_features(self):
        f = self.makeCallable('a, b=2, (c,(d,e))=(3,[4,5]), *f, **g')
        self.assertEqualCallArgs(f, '2, 3, (4,[5,6]), 7')
        self.assertEqualCallArgs(f, '2, 3, *[(4,[5,6]), 7], x=8')
        self.assertEqualCallArgs(f, '2, 3, x=8, *[(4,[5,6]), 7]')
        self.assertEqualCallArgs(f, '2, x=8, *[3, (4,[5,6]), 7], y=9')
        self.assertEqualCallArgs(f, 'x=8, *[2, 3, (4,[5,6])], y=9')
        self.assertEqualCallArgs(f, 'x=8, *UserList([2, 3, (4,[5,6])]), '
                                 '**{"y":9, "z":10}')
        self.assertEqualCallArgs(f, '2, x=8, *UserList([3, (4,[5,6])]), '
                                 '**UserDict(y=9, z=10)')