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AsyncInterceptExceptionBehaviorTester.cs
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AsyncInterceptExceptionBehaviorTester.cs
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using System;
using System.Threading.Tasks;
using FubuMVC.Core.Behaviors;
using FubuMVC.Core.Runtime;
using FubuTestingSupport;
using NUnit.Framework;
using Rhino.Mocks;
namespace FubuMVC.Tests.Behaviors
{
[TestFixture]
public class when_an_exception_is_thrown_and_should_not_be_handled : InteractionContext<AsyncInterceptExceptionBehavior>
{
private IExceptionHandler _exceptionHandler;
private IExceptionHandlingObserver _observer;
private AggregateException _exception;
private ArgumentException _argumentException;
protected override void beforeEach()
{
_argumentException = new ArgumentException("Failed");
_exceptionHandler = MockFor<IExceptionHandler>();
_observer = MockFor<IExceptionHandlingObserver>();
_exceptionHandler.Expect(x => x.ShouldHandle(_argumentException)).Return(false);
ClassUnderTest.InsideBehavior = new AsyncThrowingBehavior(_argumentException);
var testTask = new Task(() => ClassUnderTest.Invoke());
testTask.Start();
_exception = Assert.Throws<AggregateException>(testTask.Wait);
}
[Test]
[Platform(Exclude = "Mono", Reason = "Incomplete Mono implementation")]
public void should_not_call_handle()
{
_exceptionHandler.VerifyAllExpectations();
}
[Test]
[Platform(Exclude = "Mono", Reason = "Incomplete Mono implementation")]
public void should_not_be_observed_as_handled()
{
_observer.VerifyAllExpectations();
}
[Test]
[Platform(Exclude = "Mono", Reason = "Incomplete Mono implementation")]
public void should_have_the_correct_exception()
{
_exception.InnerExceptions.Contains(_argumentException);
}
}
[TestFixture]
public class when_an_exception_is_thrown_and_should_be_handled : InteractionContext<AsyncInterceptExceptionBehavior>
{
private IExceptionHandler _exceptionHandler;
private IExceptionHandlingObserver _observer;
private AggregateException _exception;
private ArgumentException _argumentException;
protected override void beforeEach()
{
_argumentException = new ArgumentException("Failed");
_exceptionHandler = MockFor<IExceptionHandler>();
_observer = MockFor<IExceptionHandlingObserver>();
_observer.Expect(x => x.RecordHandled(_argumentException));
_exceptionHandler.Expect(x => x.ShouldHandle(_argumentException)).Return(true);
_exceptionHandler.Expect(x => x.Handle(_argumentException));
ClassUnderTest.InsideBehavior = new AsyncThrowingBehavior(_argumentException);
var testTask = new Task(() => ClassUnderTest.Invoke());
testTask.Start();
_exception = Assert.Throws<AggregateException>(testTask.Wait);
}
[Test]
[Platform(Exclude = "Mono", Reason = "Incomplete Mono implementation")]
public void should_call_handle()
{
_exceptionHandler.VerifyAllExpectations();
}
[Test]
[Platform(Exclude = "Mono", Reason = "Incomplete Mono implementation")]
public void should_be_observed_as_handled()
{
_observer.VerifyAllExpectations();
}
[Test]
[Platform(Exclude = "Mono", Reason = "Incomplete Mono implementation")]
public void should_have_the_correct_exception()
{
_exception.InnerExceptions.Contains(_argumentException);
}
}
[TestFixture]
public class when_no_exception_is_thrown : InteractionContext<AsyncInterceptExceptionBehavior>
{
private IExceptionHandler _exceptionHandler;
private IExceptionHandlingObserver _observer;
private DoNothingBehavior _insideBehavior;
protected override void beforeEach()
{
_insideBehavior = new DoNothingBehavior();
_exceptionHandler = MockFor<IExceptionHandler>();
_observer = MockFor<IExceptionHandlingObserver>();
ClassUnderTest.InsideBehavior = _insideBehavior;
var testTask = new Task(() => ClassUnderTest.Invoke());
testTask.Start();
testTask.Wait();
}
[Test]
public void should_not_call_handle()
{
_exceptionHandler.VerifyAllExpectations();
}
[Test]
public void should_not_be_observed_as_handled()
{
_observer.VerifyAllExpectations();
}
[Test]
public void inside_behavior_should_be_invoked()
{
_insideBehavior.Invoked.ShouldBeTrue();
}
}
public class AsyncThrowingBehavior : IActionBehavior
{
private readonly Exception _exception;
public AsyncThrowingBehavior(Exception exception)
{
_exception = exception;
}
public void Invoke()
{
Task.Factory.StartNew(() => { throw _exception; }, TaskCreationOptions.AttachedToParent);
}
public void InvokePartial()
{
Task.Factory.StartNew(() => { throw _exception; }, TaskCreationOptions.AttachedToParent);
}
}
public class AsyncDoNothingBehavior : IActionBehavior
{
public bool Invoked { get; set; }
public void Invoke()
{
Invoked = true;
Task.Factory.StartNew(() => { }, TaskCreationOptions.AttachedToParent);
}
public void InvokePartial()
{
Invoked = true;
Task.Factory.StartNew(() => { }, TaskCreationOptions.AttachedToParent);
}
}
}