public void MergePromiseIsCanceledWhenAnyPromiseIsAlreadyCanceled()
{
bool canceled = false;
string cancelation = "Cancel!";
var deferred = Promise.NewDeferred <int>();
Promise.Merge(deferred.Promise, Promise.Canceled <int, string>(cancelation))
.Then(v => Assert.Fail("Promise was resolved when it should have been rejected."))
.CatchCancelation(reason =>
{
Assert.AreEqual(cancelation, reason.Value);
canceled = true;
});
deferred.Resolve(0);
Promise.Manager.HandleCompletes();
Assert.AreEqual(true, canceled);
// Clean up.
GC.Collect();
Promise.Manager.HandleCompletesAndProgress();
LogAssert.NoUnexpectedReceived();
}
public void SetException(Exception exception)
{
#if PROMISE_CANCEL
if (exception is OperationCanceledException ex)
{
if (_deferred == null)
{
Task = Promise.Canceled(ex);
}
else
{
_deferred.Cancel(ex);
_deferred = null;
}
}
else
#endif
{
if (_deferred == null)
{
Task = Promise.Rejected(exception);
}
else
{
_deferred.Reject(exception);
_deferred = null;
}
}
}
public void AwaitAlreadyCanceledPromiseThrowsOperationCanceled2()
{
string cancelValue = "Cancel";
bool continued = false;
async void Func()
{
try
{
int value = await Promise.Canceled <int, string>(cancelValue);
}
catch (CanceledException e)
{
Assert.AreEqual(cancelValue, e.Value);
continued = true;
}
}
Assert.AreEqual(false, continued);
Func();
Assert.AreEqual(true, continued);
Promise.Manager.HandleCompletes();
Assert.AreEqual(true, continued);
TestHelper.Cleanup();
}
public void SequencePromiseIsCanceledWhenAnyPromiseIsAlreadyCanceled()
{
int canceled = 0;
string cancelation = "Cancel!";
var deferred = Promise.NewDeferred <int>();
Promise.Sequence(() => deferred.Promise, () => Promise.Canceled <int, string>(cancelation))
.Then(() => Assert.Fail("Promise was resolved when it should have been canceled."))
.CatchCancelation(reason =>
{
Assert.AreEqual(cancelation, reason.Value);
++canceled;
});
Promise.Manager.HandleCompletes();
Assert.AreEqual(0, canceled);
deferred.Resolve(0);
Promise.Manager.HandleCompletes();
Assert.AreEqual(1, canceled);
// Clean up.
GC.Collect();
Promise.Manager.HandleCompletesAndProgress();
LogAssert.NoUnexpectedReceived();
}
public void AwaitAlreadyCanceledPromiseThrowsOperationCanceled2()
{
string cancelValue = "Cancel";
bool continued = false;
async void Func()
{
try
{
int value = await Promise.Canceled <int, string>(cancelValue);
}
catch (CanceledException e)
{
Assert.AreEqual(cancelValue, e.Value);
continued = true;
}
}
Assert.AreEqual(false, continued);
Func();
Assert.AreEqual(true, continued);
Promise.Manager.HandleCompletes();
Assert.AreEqual(true, continued);
// Clean up.
GC.Collect();
Promise.Manager.HandleCompletesAndProgress();
LogAssert.NoUnexpectedReceived();
}
public void OnCanceledIsNotInvokedIfTokenIsCanceled()
{
CancelationSource cancelationSource = CancelationSource.New();
Promise.Canceled()
.CatchCancelation(_ => Assert.Fail("OnCanceled was invoked."), cancelationSource.Token)
.CatchCancelation(1, (cv, _) => Assert.Fail("OnCanceled was invoked."), cancelationSource.Token);
Promise.Canceled <int>()
.CatchCancelation(_ => Assert.Fail("OnCanceled was invoked."), cancelationSource.Token)
.CatchCancelation(1, (cv, _) => Assert.Fail("OnCanceled was invoked."), cancelationSource.Token);
cancelationSource.Cancel();
Promise.Manager.HandleCompletes();
cancelationSource.Dispose();
TestHelper.Cleanup();
}
public void SetException(Exception exception)
{
if (Task is null)
{
if (exception is OperationCanceledException e)
{
Task = Promise.Canceled(e);
}
else
{
Task = Promise.Rejected(exception);
}
}
else
{
((AsyncPromise)Task).SetException(exception);
}
}
public void AllPromiseIsCancelededWhenAnyPromiseIsAlreadyCanceled()
{
int cancelations = 0;
string cancelation = "Cancel!";
var deferred = Promise.NewDeferred <int>();
var promise = Promise.Canceled <int, string>(cancelation);
promise.Retain();
Promise.Manager.HandleCompletes();
Promise.All(deferred.Promise, promise)
.Then(v => Assert.Fail("Promise was resolved when it should have been canceled."))
.CatchCancelation(ex =>
{
Assert.AreEqual(cancelation, ex.Value);
++cancelations;
});
Promise.All((Promise)deferred.Promise, promise)
.Then(() => Assert.Fail("Promise was resolved when it should have been canceled."))
.CatchCancelation(ex =>
{
Assert.AreEqual(cancelation, ex.Value);
++cancelations;
});
deferred.Resolve(0);
Promise.Manager.HandleCompletes();
Assert.AreEqual(2, cancelations);
promise.Release();
Promise.Manager.HandleCompletes();
Assert.AreEqual(2, cancelations);
// Clean up.
GC.Collect();
Promise.Manager.HandleCompletesAndProgress();
LogAssert.NoUnexpectedReceived();
}
public void PromiseCanceledIsCanceledWithTheGivenReason1()
{
string expected = "Cancel";
var promise = Promise.Canceled <int, string>(expected);
bool canceled = false;
promise
.Then(() => Assert.Fail("Promise was resolved when it should have been canceled"))
.Catch(() => Assert.Fail("Promise was rejected when it should have been canceled"))
.CatchCancelation(reason =>
{
Assert.AreEqual(expected, reason.Value);
canceled = true;
});
Promise.Manager.HandleCompletes();
Assert.AreEqual(true, canceled);
TestHelper.Cleanup();
}
public void PromiseCanceledIsCanceledWithTheGivenReason0()
{
string expected = "Cancel";
var promise = Promise.Canceled(expected);
bool canceled = false;
promise
.Then(() => Assert.Fail("Promise was resolved when it should have been canceled"))
.Catch(() => Assert.Fail("Promise was rejected when it should have been canceled"))
.CatchCancelation(reason =>
{
Assert.AreEqual(expected, reason.Value);
canceled = true;
});
Promise.Manager.HandleCompletes();
Assert.AreEqual(true, canceled);
// Clean up.
GC.Collect();
Promise.Manager.HandleCompletesAndProgress();
LogAssert.NoUnexpectedReceived();
}