Python mock.mock方法代码示例

# 需要导入模块: import mock [as 别名]
# 或者: from mock import mock [as 别名]
def _check_and_set_parent(parent, value, name, new_name):
    if not _is_instance_mock(value):
        return False
    if ((value._mock_name or value._mock_new_name) or
        (value._mock_parent is not None) or
        (value._mock_new_parent is not None)):
        return False

    _parent = parent
    while _parent is not None:
        # setting a mock (value) as a child or return value of itself
        # should not modify the mock
        if _parent is value:
            return False
        _parent = _parent._mock_new_parent

    if new_name:
        value._mock_new_parent = parent
        value._mock_new_name = new_name
    if name:
        value._mock_parent = parent
        value._mock_name = name
    return True

# Internal class to identify if we wrapped an iterator object or not. 

# 需要导入模块: import mock [as 别名]
# 或者: from mock import mock [as 别名]
def reset_mock(self, visited=None):
        "Restore the mock object to its initial state."
        if visited is None:
            visited = []
        if id(self) in visited:
            return
        visited.append(id(self))

        self.called = False
        self.call_args = None
        self.call_count = 0
        self.mock_calls = _CallList()
        self.call_args_list = _CallList()
        self.method_calls = _CallList()

        for child in self._mock_children.values():
            if isinstance(child, _SpecState):
                continue
            child.reset_mock(visited)

        ret = self._mock_return_value
        if _is_instance_mock(ret) and ret is not self:
            ret.reset_mock(visited) 

# 需要导入模块: import mock [as 别名]
# 或者: from mock import mock [as 别名]
def configure_mock(self, **kwargs):
        """Set attributes on the mock through keyword arguments.

        Attributes plus return values and side effects can be set on child
        mocks using standard dot notation and unpacking a dictionary in the
        method call:

        >>> attrs = {'method.return_value': 3, 'other.side_effect': KeyError}
        >>> mock.configure_mock(**attrs)"""
        for arg, val in sorted(kwargs.items(),
                               # we sort on the number of dots so that
                               # attributes are set before we set attributes on
                               # attributes
                               key=lambda entry: entry[0].count('.')):
            args = arg.split('.')
            final = args.pop()
            obj = self
            for entry in args:
                obj = getattr(obj, entry)
            setattr(obj, final, val) 

# 需要导入模块: import mock [as 别名]
# 或者: from mock import mock [as 别名]
def __dir__(self):
        """Filter the output of `dir(mock)` to only useful members."""
        if not mock.FILTER_DIR and getattr(object, '__dir__', None):
            # object.__dir__ is not in 2.7
            return object.__dir__(self)

        extras = self._mock_methods or []
        from_type = dir(type(self))
        from_dict = list(self.__dict__)

        if mock.FILTER_DIR:
            # object.__dir__ is not in 2.7
            from_type = [e for e in from_type if not e.startswith('_')]
            from_dict = [e for e in from_dict if not e.startswith('_') or
                         _is_magic(e)]
        return sorted(set(extras + from_type + from_dict +
                          list(self._mock_children))) 

# 需要导入模块: import mock [as 别名]
# 或者: from mock import mock [as 别名]
def assert_called_with(_mock_self, *args, **kwargs):
        """assert that the mock was called with the specified arguments.

        Raises an AssertionError if the args and keyword args passed in are
        different to the last call to the mock."""
        self = _mock_self
        if self.call_args is None:
            expected = self._format_mock_call_signature(args, kwargs)
            raise AssertionError('Expected call: %s\nNot called' % (expected,))

        def _error_message(cause):
            msg = self._format_mock_failure_message(args, kwargs)
            if six.PY2 and cause is not None:
                # Tack on some diagnostics for Python without __cause__
                msg = '%s\n%s' % (msg, str(cause))
            return msg
        expected = self._call_matcher((args, kwargs))
        actual = self._call_matcher(self.call_args)
        if expected != actual:
            cause = expected if isinstance(expected, Exception) else None
            six.raise_from(AssertionError(_error_message(cause)), cause) 

# 需要导入模块: import mock [as 别名]
# 或者: from mock import mock [as 别名]
def _patch_object(
        target, attribute, new=DEFAULT, spec=None,
        create=False, spec_set=None, autospec=None,
        new_callable=None, **kwargs
    ):
    """
    patch the named member (`attribute`) on an object (`target`) with a mock
    object.

    `patch.object` can be used as a decorator, class decorator or a context
    manager. Arguments `new`, `spec`, `create`, `spec_set`,
    `autospec` and `new_callable` have the same meaning as for `patch`. Like
    `patch`, `patch.object` takes arbitrary keyword arguments for configuring
    the mock object it creates.

    When used as a class decorator `patch.object` honours `patch.TEST_PREFIX`
    for choosing which methods to wrap.
    """
    getter = lambda: target
    return _patch(
        getter, attribute, new, spec, create,
        spec_set, autospec, new_callable, kwargs
    ) 

# 需要导入模块: import mock [as 别名]
# 或者: from mock import mock [as 别名]
def _set_return_value(mock, method, name):
    fixed = _return_values.get(name, DEFAULT)
    if fixed is not DEFAULT:
        method.return_value = fixed
        return

    return_calulator = _calculate_return_value.get(name)
    if return_calulator is not None:
        try:
            return_value = return_calulator(mock)
        except AttributeError:
            # XXXX why do we return AttributeError here?
            #      set it as a side_effect instead?
            return_value = AttributeError(name)
        method.return_value = return_value
        return

    side_effector = _side_effect_methods.get(name)
    if side_effector is not None:
        method.side_effect = side_effector(mock) 

# 需要导入模块: import mock [as 别名]
# 或者: from mock import mock [as 别名]
def test_autospec_side_effect(self):
        # Test for issue17826
        results = [1, 2, 3]
        def effect():
            return results.pop()
        def f():
            pass

        mock = create_autospec(f)
        mock.side_effect = [1, 2, 3]
        self.assertEqual([mock(), mock(), mock()], [1, 2, 3],
                          "side effect not used correctly in create_autospec")
        # Test where side effect is a callable
        results = [1, 2, 3]
        mock = create_autospec(f)
        mock.side_effect = effect
        self.assertEqual([mock(), mock(), mock()], [3, 2, 1],
                          "callable side effect not used correctly") 

# 需要导入模块: import mock [as 别名]
# 或者: from mock import mock [as 别名]
def test_call_args_comparison(self):
        mock = Mock()
        mock()
        mock(sentinel.Arg)
        mock(kw=sentinel.Kwarg)
        mock(sentinel.Arg, kw=sentinel.Kwarg)
        self.assertEqual(mock.call_args_list, [
            (),
            ((sentinel.Arg,),),
            ({"kw": sentinel.Kwarg},),
            ((sentinel.Arg,), {"kw": sentinel.Kwarg})
        ])
        self.assertEqual(mock.call_args,
                         ((sentinel.Arg,), {"kw": sentinel.Kwarg}))

        # Comparing call_args to a long sequence should not raise
        # an exception. See issue 24857.
        self.assertFalse(mock.call_args == "a long sequence") 

# 需要导入模块: import mock [as 别名]
# 或者: from mock import mock [as 别名]
def test_assert_called_with_function_spec(self):
        def f(a, b, c, d=None):
            pass

        mock = Mock(spec=f)

        mock(1, b=2, c=3)
        mock.assert_called_with(1, 2, 3)
        mock.assert_called_with(a=1, b=2, c=3)
        self.assertRaises(AssertionError, mock.assert_called_with,
                          1, b=3, c=2)
        # Expected call doesn't match the spec's signature
        with self.assertRaises(AssertionError) as cm:
            mock.assert_called_with(e=8)
        if hasattr(cm.exception, '__cause__'):
            self.assertIsInstance(cm.exception.__cause__, TypeError) 

# 需要导入模块: import mock [as 别名]
# 或者: from mock import mock [as 别名]
def test_assert_called_once_with(self):
        mock = Mock()
        mock()

        # Will raise an exception if it fails
        mock.assert_called_once_with()

        mock()
        self.assertRaises(AssertionError, mock.assert_called_once_with)

        mock.reset_mock()
        self.assertRaises(AssertionError, mock.assert_called_once_with)

        mock('foo', 'bar', baz=2)
        mock.assert_called_once_with('foo', 'bar', baz=2)

        mock.reset_mock()
        mock('foo', 'bar', baz=2)
        self.assertRaises(
            AssertionError,
            lambda: mock.assert_called_once_with('bob', 'bar', baz=2)
        ) 

# 需要导入模块: import mock [as 别名]
# 或者: from mock import mock [as 别名]
def test_assert_called_once_with_function_spec(self):
        def f(a, b, c, d=None):
            pass

        mock = Mock(spec=f)

        mock(1, b=2, c=3)
        mock.assert_called_once_with(1, 2, 3)
        mock.assert_called_once_with(a=1, b=2, c=3)
        self.assertRaises(AssertionError, mock.assert_called_once_with,
                          1, b=3, c=2)
        # Expected call doesn't match the spec's signature
        with self.assertRaises(AssertionError) as cm:
            mock.assert_called_once_with(e=8)
        if hasattr(cm.exception, '__cause__'):
            self.assertIsInstance(cm.exception.__cause__, TypeError)
        # Mock called more than once => always fails
        mock(4, 5, 6)
        self.assertRaises(AssertionError, mock.assert_called_once_with,
                          1, 2, 3)
        self.assertRaises(AssertionError, mock.assert_called_once_with,
                          4, 5, 6) 

# 需要导入模块: import mock [as 别名]
# 或者: from mock import mock [as 别名]
def test_from_spec(self):
        class Something(object):
            x = 3
            __something__ = None
            def y(self):
                pass

        def test_attributes(mock):
            # should work
            mock.x
            mock.y
            mock.__something__
            self.assertRaisesRegex(
                AttributeError,
                "Mock object has no attribute 'z'",
                getattr, mock, 'z'
            )
            self.assertRaisesRegex(
                AttributeError,
                "Mock object has no attribute '__foobar__'",
                getattr, mock, '__foobar__'
            )

        test_attributes(Mock(spec=Something))
        test_attributes(Mock(spec=Something())) 

# 需要导入模块: import mock [as 别名]
# 或者: from mock import mock [as 别名]
def test_spec_set_old_style_classes(self):
        class Foo:
            bar = 7

        mock = Mock(spec_set=Foo)
        mock.bar = 6
        self.assertRaises(AttributeError, lambda: mock.foo)

        def _set():
            mock.foo = 3
        self.assertRaises(AttributeError, _set)

        mock = Mock(spec_set=Foo())
        mock.bar = 6
        self.assertRaises(AttributeError, lambda: mock.foo)

        def _set():
            mock.foo = 3
        self.assertRaises(AttributeError, _set) 

# 需要导入模块: import mock [as 别名]
# 或者: from mock import mock [as 别名]
def test_dir(self):
        mock = Mock()
        attrs = set(dir(mock))
        type_attrs = set([m for m in dir(Mock) if not m.startswith('_')])

        # all public attributes from the type are included
        self.assertEqual(set(), type_attrs - attrs)

        # creates these attributes
        mock.a, mock.b
        self.assertIn('a', dir(mock))
        self.assertIn('b', dir(mock))

        # instance attributes
        mock.c = mock.d = None
        self.assertIn('c', dir(mock))
        self.assertIn('d', dir(mock))

        # magic methods
        mock.__iter__ = lambda s: iter([])
        self.assertIn('__iter__', dir(mock))