public static void DoubleCallToGetResultCausesError()
{
// important to verify it throws rather than acting like a new task
var tcs = new ResettableBooleanCompletionSource(_testQueue);
var task = tcs.GetValueTask();
tcs.Complete(true);
Assert.True(task.Result);
Assert.Throws <InvalidOperationException>(() => task.Result);
}
public async static void CanSetResultToFalse()
{
var tcs = new ResettableBooleanCompletionSource(_testQueue);
_ = Task.Run(() =>
{
tcs.Complete(false);
});
var result = await tcs.GetValueTask();
Assert.False(result);
}
public async static void CanBeAwaitedMultipleTimes()
{
var tcs = new ResettableBooleanCompletionSource(_testQueue);
tcs.Complete(true);
Assert.True(await tcs.GetValueTask());
tcs.Complete(true);
Assert.True(await tcs.GetValueTask());
tcs.Complete(false);
Assert.False(await tcs.GetValueTask());
tcs.Complete(false);
Assert.False(await tcs.GetValueTask());
}
private static async Task RunsContinuationsAsynchronouslyInternally()
{
var tcs = new ResettableBooleanCompletionSource(_testQueue);
var mre = new ManualResetEventSlim();
async Task AwaitAndBlock()
{
await tcs.GetValueTask();
mre.Wait();
}
var task = AwaitAndBlock();
await Task.Run(() => tcs.Complete(true)).DefaultTimeout();
Assert.False(task.IsCompleted);
mre.Set();
await task.DefaultTimeout();
}
public TestQueueForResettableBoolean()
{
Source = new ResettableBooleanCompletionSource(TestUtils.CreateStackPolicy(1));
}
