public async Task Should_return_missing_housenumber_error() { var request = BuildRequest(); request.HearingRoleName = "Claimant LIP"; request.HouseNumber = string.Empty; var result = await _addressValidator.ValidateAsync(request); result.IsValid.Should().BeFalse(); result.Errors.Count.Should().Be(1); result.Errors.Any(x => x.ErrorMessage == AddressValidation.NoHouseNumberErrorMessage) .Should().BeTrue(); }