ExampleWithList.cs

ExampleWithList.cs

        [Test]
        public void Fails_WhenNotCalled()
        {
            var service = Substitute.For<IRegistrationService>();
            var expected = new RegistrationModel { Username = "Admin", Password = "123456" };

            service.Received(1)
                .Register(Verify.That<IList<RegistrationModel>>(a =>
                        a.Should().BeEquivalentTo(new List<RegistrationModel> { expected })
                    )
                );
        }

        [Test]
        public void Fails_WhenWronglyCalled()
        {
            var service = Substitute.For<IRegistrationService>();
            var expected = new RegistrationModel { Username = "Admin", Password = "123456" };

            service.Register(new List<RegistrationModel>
                {
                    new() { Username = "Admin", Password = "but wrong password" }
                }
            );

            service.Received(1)
                .Register(Verify.That<IList<RegistrationModel>>(a =>
                        a.Should().BeEquivalentTo(new List<RegistrationModel> { expected })
                    )
                );
        }

        [Test]
        public void Works_WhenNotCalled()
        {
            var service = Substitute.For<IRegistrationService>();
            var expected = new RegistrationModel { Username = "Admin", Password = "123456" };

            service.Register(new List<RegistrationModel> { expected });

            service.Received(1)
                .Register(Verify.That<IList<RegistrationModel>>(a =>
                        a.Should().BeEquivalentTo(new List<RegistrationModel> { expected })
                    )
                );
        }

        public class RegistrationModel
        {
            public string Username { get; set; }

            public string Password { get; set; }
        }

        public interface IRegistrationService
        {
            void Register(IList<RegistrationModel> that);
        }