public void Receive_async_should_return_an_uncompleted_task_when_the_message_does_not_exists()
{
var subject = new AsyncDropbox <int, int>();
var result = subject.ReceiveAsync(10, CancellationToken.None);
result.IsCompleted.Should().BeFalse();
}
public void Received_messages_with_the_same_id_should_throw()
{
var subject = new AsyncDropbox <int, int>();
subject.Post(10, 11);
Action act = () => subject.Post(10, 12);
act.ShouldThrow <ArgumentException>();
}
public void Receive_async_should_complete_when_message_is_posted()
{
var subject = new AsyncDropbox <int, int>();
var result = subject.ReceiveAsync(10, CancellationToken.None);
subject.Post(10, 11);
result.Result.Should().Be(11);
}
public void Receive_async_should_return_a_completed_task_when_then_message_already_exists()
{
var subject = new AsyncDropbox <int, int>();
subject.Post(10, 11);
var result = subject.ReceiveAsync(10, CancellationToken.None);
result.Result.Should().Be(11);
}
public async Task Receive_async_should_remove_message_from_dropbox()
{
var subject = new AsyncDropbox <int, int>();
subject.Post(10, 11);
subject.MessageCount.Should().Be(1);
var result = await subject.ReceiveAsync(10, CancellationToken.None);
subject.MessageCount.Should().Be(0);
result.Should().Be(11);
}
public void RemoveAllAwaiters_should_return_the_right_number_of_awaiters(int n)
{
var subject = new AsyncDropbox <int, int>();
for (var i = 0; i < n; i++)
{
subject.ReceiveAsync(i, CancellationToken.None);
}
subject.AwaiterCount.Should().Be(n);
var awaiters = subject.RemoveAllAwaiters();
awaiters.Count().Should().Be(n);
subject.AwaiterCount.Should().Be(0);
}