public void UpdateRelationshipAuthorizations_WithValidUserScreenName_AuthorizationsObjectIsNull_ReturnsNull()
        {
            var screenName = Guid.NewGuid().ToString();

            // Arrange
            var queryGenerator = CreateFrienshipQueryGenerator();

            _fakeUserQueryValidator.ArrangeIsScreenNameValid(screenName, true);

            // Act
            var result1 = queryGenerator.GetUpdateRelationshipAuthorizationsWithQuery(screenName, null);

            // Assert

            Assert.AreEqual(result1, null);
        }