public async Task InsertCustomerTest() { // arrange DateTime date = new DateTime(2000, 1, 1, 0, 0, 0, DateTimeKind.Utc); CustomerDto cust = new CustomerDto { FirstName = "Niels", LastName = "Müller", BirthDate = date.ToTimestamp() }; // act var requestInsert = cust; CustomerDto customerToInsert = _target.InsertCustomer(requestInsert); // assert var requestId = new GetCustomerRequest { IdFilter = customerToInsert.Id }; CustomerDto insertedCustomer = _target.GetCustomer(requestId); Assert.Equal(customerToInsert.Id, insertedCustomer.Id); Assert.Equal("Müller", insertedCustomer.LastName); }