public void SetUp() { _mockDatabaseGateway = new Mock <IDatabaseGateway>(); _personalRelationshipsUseCase = new PersonalRelationshipsUseCase(_mockDatabaseGateway.Object); _mockDatabaseGateway.Setup(x => x.GetPersonalRelationshipTypeByDescription(_typeInRequest.Description)) .Returns(_typeInRequest); _request = PersonalRelationshipsHelper.CreatePersonalRelationshipRequest(type: _typeInRequest.Description); _person = TestHelpers.CreatePerson(_request.PersonId); _otherPerson = TestHelpers.CreatePerson(_request.OtherPersonId); _typeInExistingRelationship = PersonalRelationshipsHelper.CreatePersonalRelationshipType("partner"); _relationship = PersonalRelationshipsHelper.CreatePersonalRelationship(_person, _otherPerson, _typeInExistingRelationship); _rel_details = PersonalRelationshipsHelper.CreatePersonalRelationshipDetail(_relationship.Id, "some details for the relationship"); }