public async Task Stop_cancels_token_while_in_callback()
{
var callbackCanceled = false;
var callbackStarted = new TaskCompletionSource <bool>();
var stopInitiated = new TaskCompletionSource <bool>();
var timer = new AsyncTimer(
callback: async(time, token) =>
{
callbackStarted.SetResult(true);
await stopInitiated.Task;
if (token.IsCancellationRequested)
{
callbackCanceled = true;
}
},
interval: TimeSpan.Zero);
await callbackStarted.Task;
var stopTask = timer.DisposeAsync();
stopInitiated.SetResult(true);
await stopTask;
Assert.True(callbackCanceled);
}
public async Task Stop_waits_for_callback_to_complete()
{
var callbackCompleted = new TaskCompletionSource <bool>();
var callbackTaskStarted = new TaskCompletionSource <bool>();
var timer = new AsyncTimer(
callback: (time, token) =>
{
callbackTaskStarted.SetResult(true);
return(callbackCompleted.Task);
},
interval: TimeSpan.Zero);
await callbackTaskStarted.Task;
var stopTask = timer.DisposeAsync().AsTask();
var delayTask = Task.Delay(1000);
var firstToComplete = await Task.WhenAny(stopTask, delayTask);
Assert.Equal(delayTask, firstToComplete);
callbackCompleted.SetResult(true);
await stopTask;
}
