private async ValueTask <Teacher> TryCatch(ReturningTeacherFunction returningTeacherFunction)
{
try
{
return(await returningTeacherFunction());
}
catch (NullTeacherException nullTeacherException)
{
throw CreateAndLogValidationException(nullTeacherException);
}
catch (InvalidTeacherException invalidTeacherException)
{
throw CreateAndLogValidationException(invalidTeacherException);
}
catch (NotFoundTeacherException notFoundTeacherException)
{
throw CreateAndLogValidationException(notFoundTeacherException);
}
catch (SqlException sqlException)
{
var failedTeacherStorageExceptin =
new FailedTeacherStorageException(sqlException);
throw CreateAndLogCriticalDependencyException(failedTeacherStorageExceptin);
}
catch (DuplicateKeyException duplicateKeyException)
{
var alreadyExistsTeacherException =
new AlreadyExistsTeacherException(duplicateKeyException);
throw CreateAndLogDependencyValidationException(alreadyExistsTeacherException);
}
catch (DbUpdateConcurrencyException dbUpdateConcurrencyException)
{
var lockedTeacherException = new LockedTeacherException(dbUpdateConcurrencyException);
throw CreateAndLogDependencyValidationException(lockedTeacherException);
}
catch (DbUpdateException dbUpdateException)
{
var failedTeacherStorageException =
new FailedTeacherStorageException(dbUpdateException);
throw CreateAndLogDependencyException(failedTeacherStorageException);
}
catch (Exception exception)
{
var failedTeacherServiceException =
new FailedTeacherServiceException(exception);
throw CreateAndLogServiceException(failedTeacherServiceException);
}
}
public async void ShouldThrowValidationExceptionOnCreateWhenTeacherAlreadyExistsAndLogItAsync()
{
// given
DateTimeOffset dateTime = GetRandomDateTime();
Teacher randomTeacher = CreateRandomTeacher(dateTime);
Teacher alreadyExistsTeacher = randomTeacher;
alreadyExistsTeacher.UpdatedBy = alreadyExistsTeacher.CreatedBy;
string randomMessage = GetRandomMessage();
string exceptionMessage = randomMessage;
var duplicateKeyException = new DuplicateKeyException(exceptionMessage);
var alreadyExistsTeacherException =
new AlreadyExistsTeacherException(duplicateKeyException);
var expectedTeacherValidationException =
new TeacherValidationException(alreadyExistsTeacherException);
this.dateTimeBrokerMock.Setup(broker =>
broker.GetCurrentDateTime())
.Returns(dateTime);
this.storageBrokerMock.Setup(broker =>
broker.InsertTeacherAsync(alreadyExistsTeacher))
.ThrowsAsync(duplicateKeyException);
// when
ValueTask <Teacher> registerTeacherTask =
this.teacherService.CreateTeacherAsync(alreadyExistsTeacher);
// then
await Assert.ThrowsAsync <TeacherValidationException>(() =>
registerTeacherTask.AsTask());
this.dateTimeBrokerMock.Verify(broker =>
broker.GetCurrentDateTime(),
Times.Once);
this.storageBrokerMock.Verify(broker =>
broker.InsertTeacherAsync(alreadyExistsTeacher),
Times.Once);
this.loggingBrokerMock.Verify(broker =>
broker.LogError(It.Is(SameExceptionAs(expectedTeacherValidationException))),
Times.Once);
this.dateTimeBrokerMock.VerifyNoOtherCalls();
this.storageBrokerMock.VerifyNoOtherCalls();
this.loggingBrokerMock.VerifyNoOtherCalls();
}
public async Task ShouldThrowDependencyValidationExceptionOnAddIfTeacherAlreadyExsitsAndLogItAsync()
{
// given
var someTeacher = CreateRandomTeacher();
var alreadyExistsTeacher = someTeacher;
string randomMessage = GetRandomMessage();
var duplicateKeyException =
new DuplicateKeyException(randomMessage);
var alreadyExistsTeacherException =
new AlreadyExistsTeacherException(duplicateKeyException);
var expectedTeacherDependencyValidationException =
new TeacherDependencyValidationException(alreadyExistsTeacherException);
this.dateTimeBrokerMock.Setup(broker =>
broker.GetCurrentDateTime())
.Throws(duplicateKeyException);
// when
ValueTask <Teacher> addTeacherTask =
this.teacherService.CreateTeacherAsync(alreadyExistsTeacher);
// then
await Assert.ThrowsAsync <TeacherDependencyValidationException>(() =>
addTeacherTask.AsTask());
this.dateTimeBrokerMock.Verify(broker =>
broker.GetCurrentDateTime(),
Times.Once());
this.loggingBrokerMock.Verify(broker => broker.LogError(It.Is(SameExceptionAs(
expectedTeacherDependencyValidationException))),
Times.Once);
this.storageBrokerMock.Verify(broker =>
broker.InsertTeacherAsync(It.IsAny <Teacher>()),
Times.Never());
this.dateTimeBrokerMock.VerifyNoOtherCalls();
this.loggingBrokerMock.VerifyNoOtherCalls();
this.storageBrokerMock.VerifyNoOtherCalls();
}
