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 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_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_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 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_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 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();
}