public void TestStopOnFirstBeforeHandlerThatHasAnError(bool stopOnFirst)
{
//SETUP
var options = SqliteInMemory.CreateOptions <ExampleDbContext>();
var logs = new List <LogOutput>();
var config = new GenericEventRunnerConfig
{
StopOnFirstBeforeHandlerThatHasAnError = stopOnFirst
};
var context = options.CreateAndSeedDbWithDiForHandlers <OrderCreatedHandler>(logs, config);
{
var tax = new TaxRate(DateTime.Now, 6);
context.Add(tax);
//ATTEMPT
tax.AddEvent(new EventTestBeforeReturnError());
tax.AddEvent(new EventTestBeforeReturnError());
var ex = Assert.Throws <GenericEventRunnerStatusException>(() => context.SaveChanges());
//VERIFY
context.StatusFromLastSaveChanges.IsValid.ShouldBeFalse();
context.StatusFromLastSaveChanges.Errors.Count.ShouldEqual(stopOnFirst ? 1 : 2);
logs.Count.ShouldEqual(stopOnFirst ? 1 : 4);
}
}
public void TestDeDupBeforeEvents()
{
//SETUP
var options = SqliteInMemory.CreateOptions <ExampleDbContext>();
var logs = new List <LogOutput>();
var context = options.CreateAndSeedDbWithDiForHandlers <OrderCreatedHandler>(logs);
{
var tax = new TaxRate(DateTime.Now, 123);
context.Add(tax);
context.SaveChanges();
logs.Clear();
//ATTEMPT
var normalCount = 0;
var deDepCount = 0;
tax.AddEvent(new TaxRateChangedEvent(123, () => normalCount++));
tax.AddEvent(new TaxRateChangedEvent(123, () => normalCount++));
tax.AddEvent(new DeDupEvent(() => deDepCount++));
tax.AddEvent(new DeDupEvent(() => deDepCount++));
context.SaveChanges();
//VERIFY
normalCount.ShouldEqual(2);
deDepCount.ShouldEqual(1);
foreach (var logOutput in logs)
{
_output.WriteLine(logOutput.Message);
}
}
}
public async Task TestStopOnFirstBeforeHandlerThatHasAnError(bool stopOnFirst)
{
//SETUP
var options = SqliteInMemory.CreateOptions <ExampleDbContext>();
var config = new GenericEventRunnerConfig
{
StopOnFirstBeforeHandlerThatHasAnError = stopOnFirst
};
var context = options.CreateAndSeedDbWithDiForHandlers <OrderCreatedHandler>(config: config);
{
var tax = new TaxRate(DateTime.Now, 6);
context.Add(tax);
//ATTEMPT
tax.AddEvent(new EventTestBeforeReturnError());
tax.AddEvent(new EventTestBeforeReturnError());
var status = await context.SaveChangesWithStatusAsync();
//VERIFY
status.IsValid.ShouldBeFalse();
status.Errors.Count.ShouldEqual(stopOnFirst ? 1 : 2);
context.StatusFromLastSaveChanges.Errors.Count.ShouldEqual(stopOnFirst ? 1 : 2);
}
}
public async Task TestCircularEventException()
{
//SETUP
var options = SqliteInMemory.CreateOptions <ExampleDbContext>();
var context = options.CreateAndSeedDbWithDiForHandlers <OrderCreatedHandler>();
{
var tax = new TaxRate(DateTime.Now, 6);
context.Add(tax);
//ATTEMPT
tax.AddEvent(new EventCircularEvent());
var ex = await Assert.ThrowsAsync <GenericEventRunnerException>(async() => await context.SaveChangesAsync());
//VERIFY
ex.Message.ShouldStartWith("The BeforeSave event loop exceeded the config's MaxTimesToLookForBeforeEvents value of 6.");
}
}
public async Task TestBeforeHandlerThrowsExceptionWithAttribute()
{
//SETUP
var options = SqliteInMemory.CreateOptions <ExampleDbContext>();
var context = options.CreateAndSeedDbWithDiForHandlers <OrderCreatedHandler>();
{
var tax = new TaxRate(DateTime.Now, 6);
context.Add(tax);
//ATTEMPT
tax.AddEvent(new EventTestExceptionHandlerWithAttribute());
var ex = await Assert.ThrowsAsync <ApplicationException>(async() => await context.SaveChangesAsync());
//VERIFY
ex.Message.ShouldEqual(nameof(BeforeHandlerThrowsExceptionWithAttribute));
}
}
public void TestBeforeHandlerThrowsException()
{
//SETUP
var options = SqliteInMemory.CreateOptions <ExampleDbContext>();
var context = options.CreateAndSeedDbWithDiForHandlers <OrderCreatedHandler>();
{
var tax = new TaxRate(DateTime.Now, 6);
context.Add(tax);
//ATTEMPT
tax.AddEvent(new EventTestBeforeExceptionHandler());
var ex = Assert.Throws <ApplicationException>(() => context.SaveChanges());
//VERIFY
ex.Message.ShouldEqual(nameof(BeforeHandlerThrowsException));
}
}
public async Task TestMissingHandlerThrowsException(EventToSend beforeAfter)
{
//SETUP
var options = SqliteInMemory.CreateOptions <ExampleDbContext>();
var context = options.CreateAndSeedDbWithDiForHandlers <OrderCreatedHandler>();
{
var tax = new TaxRate(DateTime.Now, 6);
context.Add(tax);
//ATTEMPT
tax.AddEvent(new EventWithNoHandler(), beforeAfter);
var ex = await Assert.ThrowsAsync <GenericEventRunnerException>(async() => await context.SaveChangesAsync());
//VERIFY
ex.Message.ShouldEqual(beforeAfter == EventToSend.BeforeSave
? $"Could not find a BeforeSave event handler for the event {typeof(EventWithNoHandler).Name}."
: $"Could not find a AfterSave event handler for the event {typeof(EventWithNoHandler).Name}.");
}
}