public async Task When_task_completes_on_UI_thread_slow_async_it_should_fail()
{
// Arrange
var timer = new FakeClock();
var taskFactory = new TaskCompletionSource <bool>();
// Act
Func <Task> action = () => taskFactory.Awaiting(t => (Task)t.Task).Should(timer).CompleteWithinAsync(100.Milliseconds());
timer.Complete();
// Assert
await action.Should().ThrowAsync <XunitException>();
}
public void When_task_completes_slow_it_should_fail()
{
// Arrange
var timer = new FakeClock();
var taskFactory = new TaskCompletionSource <bool>();
// Act
Action action = () => taskFactory.Awaiting(t => (Task)t.Task).Should(timer).CompleteWithin(100.Milliseconds());
timer.RunsIntoTimeout();
// Assert
action.Should().Throw <XunitException>();
}
public async Task When_subject_is_null_when_expecting_to_complete_async_it_should_throw()
{
// Arrange
var timer = new FakeClock();
var timeSpan = 0.Milliseconds();
Func <Task> action = null;
// Act
Func <Task> testAction = () => action.Should().CompleteWithinAsync(
timeSpan, "because we want to test the failure {0}", "message");
// Assert
await testAction.Should().ThrowAsync <XunitException>()
.WithMessage("*because we want to test the failure message*found <null>*");
}
public async Task When_task_completes_fast_async_it_should_succeed()
{
// Arrange
var timer = new FakeClock();
var taskFactory = new TaskCompletionSource <bool>();
// Act
Func <Task> action = () => taskFactory.Awaiting(t => (Task)t.Task).Should(timer).CompleteWithinAsync(100.Milliseconds());
taskFactory.SetResult(true);
timer.Complete();
// Assert
await action.Should().NotThrowAsync();
}
public async Task When_TCS_did_not_complete_in_time_it_should_fail()
{
// Arrange
var subject = new TaskCompletionSource <bool>();
var timer = new FakeClock();
// Act
Func <Task> action = () => subject.Should(timer).CompleteWithinAsync(1.Seconds(), "test {0}", "testArg");
timer.Complete();
// Assert
await action.Should().ThrowAsync <XunitException>()
.WithMessage("Expected subject to complete within 1s because test testArg.");
}
public async Task When_TCS_completes_in_time_and_result_is_expected_it_should_succeed()
{
// Arrange
var subject = new TaskCompletionSource <int>();
var timer = new FakeClock();
// Act
Func <Task> action = async() => (await subject.Should(timer).CompleteWithinAsync(1.Seconds())).Which.Should().Be(42);
subject.SetResult(42);
timer.Complete();
// Assert
await action.Should().NotThrowAsync();
}
public async Task When_TCS_completes_in_time_it_should_succeed()
{
// Arrange
var subject = new TaskCompletionSource <bool>();
var timer = new FakeClock();
// Act
Func <Task> action = () => subject.Should(timer).CompleteWithinAsync(1.Seconds());
subject.SetResult(true);
timer.Complete();
// Assert
await action.Should().NotThrowAsync();
}
public void When_task_completes_fast_it_should_succeed()
{
// Arrange
var timer = new FakeClock();
var taskFactory = new TaskCompletionSource <bool>();
// Act
Action action = () => taskFactory.Awaiting(t => (Task)t.Task).Should(timer).CompleteWithin(100.Milliseconds());
taskFactory.SetResult(true);
timer.CompletesBeforeTimeout();
// Assert
action.Should().NotThrow();
}
public async Task When_TCS_completes_in_time_and_result_is_not_expected_it_should_fail()
{
// Arrange
var subject = new TaskCompletionSource <int>();
var timer = new FakeClock();
// Act
Func <Task> action = async() => (await subject.Should(timer).CompleteWithinAsync(1.Seconds())).Which.Should().Be(42);
subject.SetResult(99);
timer.Complete();
// Assert
await action.Should().ThrowAsync <XunitException>()
.WithMessage("Expected * to be 42, but found 99.");
}
public async Task When_task_throws_async_on_UI_thread_it_should_fail()
{
// Arrange
var timer = new FakeClock();
// Act
Func <Task> action = () =>
{
Func <Task <int> > func = () => throw new AggregateException();
return(func.Should(timer).NotThrowAsync());
};
// Assert
await action.Should().ThrowAsync <XunitException>();
}
public async Task When_poll_interval_is_zero_for_async_func_executed_with_wait_it_should_not_throw()
{
// Arrange
var waitTime = 10.Milliseconds();
var pollInterval = 0.Milliseconds();
var clock = new FakeClock();
var asyncObject = new AsyncClass();
Func <Task> someFunc = () => asyncObject.SucceedAsync();
// Act
Func <Task> act = () => someFunc.Should(clock).NotThrowAfterAsync(waitTime, pollInterval);
// Assert
await act.Should().NotThrowAsync();
}
public void When_task_completes_slow_it_should_fail()
{
// Arrange
var timer = new FakeClock();
var taskFactory = new TaskCompletionSource <int>();
// Act
Action action = () =>
{
Func <Task <int> > func = () => taskFactory.Task;
func.Should(timer).CompleteWithin(100.Milliseconds());
};
timer.RunsIntoTimeout();
// Assert
action.Should().Throw <XunitException>();
}
public async Task When_task_completes_slow_async_it_should_fail()
{
// Arrange
var timer = new FakeClock();
var taskFactory = new TaskCompletionSource <int>();
// Act
Func <Task> action = () =>
{
Func <Task <int> > func = () => taskFactory.Task;
return(func.Should(timer).CompleteWithinAsync(100.Milliseconds()));
};
timer.Complete();
// Assert
await action.Should().ThrowAsync <XunitException>();
}
public void When_subject_it_null_when_expecting_to_complete_it_should_throw()
{
//-----------------------------------------------------------------------------------------------------------
// Arrange
//-----------------------------------------------------------------------------------------------------------
var timer = new FakeClock();
var timeSpan = 0.Milliseconds();
Func <Task <int> > action = null;
//-----------------------------------------------------------------------------------------------------------
// Act
//-----------------------------------------------------------------------------------------------------------
Action testAction = () => action.Should().CompleteWithin(
timeSpan, "because we want to test the failure {0}", "message");
//-----------------------------------------------------------------------------------------------------------
// Assert
//-----------------------------------------------------------------------------------------------------------
testAction.Should().Throw <XunitException>()
.WithMessage("*because we want to test the failure message*found <null>*");
}
public void When_task_completes_fast_async_it_should_succeed()
{
// Arrange
var timer = new FakeClock();
var taskFactory = new TaskCompletionSource <int>();
// Act
Func <Task> action = async() =>
{
Func <Task <int> > func = () => taskFactory.Task;
(await func.Should(timer).CompleteWithinAsync(100.Milliseconds()))
.Which.Should().Be(42);
};
taskFactory.SetResult(42);
timer.CompletesBeforeTimeout();
// Assert
action.Should().NotThrow();
}
public async Task When_task_does_not_throw_async_it_should_succeed()
{
// Arrange
var timer = new FakeClock();
var taskFactory = new TaskCompletionSource <int>();
// Act
Func <Task> action = async() =>
{
Func <Task <int> > func = () => taskFactory.Task;
(await func.Should(timer).NotThrowAsync())
.Which.Should().Be(42);
};
taskFactory.SetResult(42);
timer.Complete();
// Assert
await action.Should().NotThrowAsync();
}
public void When_no_exception_should_be_thrown_after_wait_time_and_none_was_it_should_not_throw()
{
// Arrange
var clock = new FakeClock();
var timer = clock.StartTimer();
var waitTime = 100.Milliseconds();
var pollInterval = 10.Milliseconds();
Action throwShorterThanWaitTime = () =>
{
if (timer.Elapsed <= waitTime.Divide(2))
{
throw new ArgumentException("An exception was forced");
}
};
// Act
Action act = () => throwShorterThanWaitTime.Should(clock).NotThrowAfter(waitTime, pollInterval);
// Assert
act.Should().NotThrow();
}
