public void Validate_WhenCalled_ReturnsValidator()
        {
            IContactIdentificationQuery sut = CreateSut();

            IValidator result = sut.Validate(_validatorMockContext.ValidatorMock.Object);

            Assert.That(result, Is.EqualTo(_validatorMockContext.ValidatorMock.Object));
        }
        public void Validate_WhenValidatorIsNull_ThrowsArgumentNullException()
        {
            IContactIdentificationQuery sut = CreateSut();

            ArgumentNullException result = Assert.Throws <ArgumentNullException>(() => sut.Validate(null));

            Assert.That(result.ParamName, Is.EqualTo("validator"));
        }
        public void Validate_WhenCalled_AssertShouldNotBeNullOrWhiteSpaceWasCalledOnStringValidatorForExternalIdentifier()
        {
            string externalIdentifier       = _fixture.Create <string>();
            IContactIdentificationQuery sut = CreateSut(externalIdentifier);

            sut.Validate(_validatorMockContext.ValidatorMock.Object);

            _validatorMockContext.StringValidatorMock.Verify(m => m.ShouldNotBeNullOrWhiteSpace(
                                                                 It.Is <string>(value => string.CompareOrdinal(value, externalIdentifier) == 0),
                                                                 It.Is <Type>(value => value == sut.GetType()),
                                                                 It.Is <string>(value => string.CompareOrdinal(value, "ExternalIdentifier") == 0)),
                                                             Times.Once);
        }