public async Task AddAsync_ShouldAddIdentifierToPerson() { var person = new Person { FirstName = "Abhishek", LastName = "Bhalani" }; await _sut.AddAsync(person); await _sut.SaveChangesAsync(); var identifier = new Identifier { IdentifierType = IdentifierType.Email, Value = "*****@*****.**", Person = person }; _sutIden.Add(identifier); await _sutIden.SaveChangesAsync(); var personAdded = _sut.GetAll().Last(); Assert.Equal(1, personAdded.Identifiers.Count()); }