public async Task CheckReservation_WithValidationFailures_ShouldReturnExpectedErrors()
{
// arrange
var reservationId = Guid.NewGuid();
void AssertContains(ReservationValidationError[] errors, string propertyName, string reason)
{
var requiredEntry = errors.Where(e => e.PropertyName == propertyName && e.Reason == reason).ToArray();
Assert.AreEqual(1, requiredEntry.Length, $"The returned errors contain {requiredEntry.Length} errors for property '{propertyName}' with reason '{reason}' when only one was expected.");
}
var fixtures = new ReservationValidationServiceTestFixtures()
.WithValidStartDate()
.WithReservationId(reservationId)
.WithReservationError("startdate", "some date error")
.WithReservationError("coursecode", "some course error");
const int expectedNumberOfErrors = 2;
// Act + Assert
await fixtures.CheckReservation(result =>
{
Assert.AreEqual(expectedNumberOfErrors, result.ValidationErrors.Length);
AssertContains(result.ValidationErrors, "startdate", "some date error");
AssertContains(result.ValidationErrors, "coursecode", "some course error");
});
}
public async Task CheckReservation_WithoutReservationId_ShouldNotCallApi()
{
var fixtures = new ReservationValidationServiceTestFixtures();
await fixtures.CheckReservation();
fixtures.ReservationsApiClientMock
.Verify(rac => rac.ValidateReservation(
It.IsAny <ReservationValidationMessage>(),
It.IsAny <CancellationToken>()), Times.Never);
}
public async Task CheckReservation_WithValidationFailures_ShouldHaveHasErrorsTrue()
{
var reservationId = Guid.NewGuid();
var fixtures = new ReservationValidationServiceTestFixtures()
.WithValidStartDate()
.WithReservationId(reservationId)
.WithReservationError("startdate", "some error")
.WithReservationError("coursecode", "some code");
await fixtures.CheckReservation(result => Assert.IsTrue(result.HasErrors));
}
public async Task CheckReservation_WithReservationId_ShouldCallApi()
{
var reservationId = Guid.NewGuid();
var fixtures = new ReservationValidationServiceTestFixtures()
.WithValidStartDate()
.WithReservationId(reservationId);
await fixtures.CheckReservation();
fixtures.ReservationsApiClientMock
.Verify(rac => rac.ValidateReservation(
It.Is <ReservationValidationMessage>(msg => msg.ReservationId == reservationId),
It.IsAny <CancellationToken>()), Times.Once);
}
public void Constructor_NullLogger_ShouldThrowNullArgumentException()
{
var fixtures = new ReservationValidationServiceTestFixtures();
Assert.Throws <ArgumentNullException>(() => fixtures.CreateServiceWithNullLogger());
}
public void Constructor_ValidCall_ShouldNotThrowException()
{
var fixtures = new ReservationValidationServiceTestFixtures();
fixtures.CreateService();
}
