public void RegisteredCallbacksAreInvokedAfterSourceIsDisposed()
{
CancelationSource cancelationSource = CancelationSource.New();
CancelationToken cancelationToken = cancelationSource.Token;
bool invoked = false;
// This should never be done in practice!
cancelationToken.Register(_ => cancelationSource.Dispose());
cancelationToken.Register(_ => invoked = true);
cancelationSource.Cancel();
Assert.IsTrue(invoked);
TestHelper.Cleanup();
}
public void CancelationTokenInvalidOperations()
{
CancelationToken cancelationToken = new CancelationToken();
Assert.Throws <InvalidOperationException>(() => { var _ = cancelationToken.CancelationValue; });
Assert.Throws <InvalidOperationException>(() => { var _ = cancelationToken.CancelationValueType; });
Assert.Throws <InvalidOperationException>(() => { cancelationToken.Register(_ => { }); });
Assert.Throws <InvalidOperationException>(() => { cancelationToken.Register(1, (i, _) => { }); });
Assert.Throws <InvalidOperationException>(() => { string _; cancelationToken.TryGetCancelationValueAs(out _); });
Assert.Throws <InvalidOperationException>(cancelationToken.Retain);
Assert.Throws <InvalidOperationException>(cancelationToken.Release);
TestHelper.Cleanup();
}
public void CancelationRegistrationUnregisterCallbackIsNotInvoked3()
{
CancelationSource cancelationSource = CancelationSource.New();
CancelationToken cancelationToken = cancelationSource.Token;
bool invoked = false;
CancelationRegistration cancelationRegistration = new CancelationRegistration();
cancelationToken.Register(_ => cancelationRegistration.Unregister());
cancelationRegistration = cancelationToken.Register(0, (i, _) => invoked = true);
cancelationSource.Cancel();
Assert.IsFalse(invoked);
cancelationSource.Dispose();
TestHelper.Cleanup();
}
public void RegisteredCallbackIsRegisteredAfterSourceIsDisposedDuringInvocation()
{
CancelationSource cancelationSource = CancelationSource.New();
CancelationToken cancelationToken = cancelationSource.Token;
// This should never be done in practice!
CancelationRegistration cancelationRegistration = new CancelationRegistration();
cancelationToken.Register(_ =>
{
cancelationSource.Dispose();
Assert.IsTrue(cancelationRegistration.IsRegistered);
});
cancelationRegistration = cancelationToken.Register(_ => { });
cancelationSource.Cancel();
TestHelper.Cleanup();
}
public void RegistrationFromCancelationTokenIsNotRegisteredAfterSourceIsDisposed1()
{
CancelationSource cancelationSource = CancelationSource.New();
CancelationToken cancelationToken = cancelationSource.Token;
CancelationRegistration cancelationRegistration = cancelationToken.Register(0, (i, _) => { });
cancelationSource.Dispose();
Assert.IsFalse(cancelationRegistration.IsRegistered);
TestHelper.Cleanup();
}
public void RegistrationFromCancelationTokenIsRegistered0()
{
CancelationSource cancelationSource = CancelationSource.New();
CancelationToken cancelationToken = cancelationSource.Token;
CancelationRegistration cancelationRegistration = cancelationToken.Register(_ => { });
Assert.IsTrue(cancelationRegistration.IsRegistered);
cancelationSource.Dispose();
TestHelper.Cleanup();
}
public void RegistrationFromCancelationTokenIsNotRegisteredAfterInvoked3()
{
CancelationSource cancelationSource = CancelationSource.New();
CancelationToken cancelationToken = cancelationSource.Token;
CancelationRegistration cancelationRegistration = new CancelationRegistration();
cancelationRegistration = cancelationToken.Register(0, (i, _) => Assert.IsFalse(cancelationRegistration.IsRegistered));
cancelationSource.Cancel();
cancelationSource.Dispose();
TestHelper.Cleanup();
}
public void CancelationTokenRegisterCaptureVariableMatches()
{
CancelationSource cancelationSource = CancelationSource.New();
CancelationToken cancelationToken = cancelationSource.Token;
string expected = "Captured";
cancelationToken.Register(expected, (cv, _) => Assert.AreEqual(expected, cv));
cancelationSource.Cancel();
cancelationSource.Dispose();
TestHelper.Cleanup();
}
public void CancelationTokenRegisterCallbackIsInvoked3()
{
CancelationSource cancelationSource = CancelationSource.New();
CancelationToken cancelationToken = cancelationSource.Token;
bool invoked = false;
cancelationToken.Register(0, (i, _) => invoked = true);
cancelationSource.Cancel("Cancel");
Assert.IsTrue(invoked);
cancelationSource.Dispose();
TestHelper.Cleanup();
}
public void RegisteredCallbacksAreInvokedEvenWhenAnExceptionOccurs()
{
CancelationSource cancelationSource = CancelationSource.New();
CancelationToken cancelationToken = cancelationSource.Token;
int callbackCount = 0;
cancelationToken.Register(_ => ++ callbackCount);
cancelationToken.Register(_ =>
{
++callbackCount;
throw new Exception();
});
cancelationToken.Register(_ => ++ callbackCount);
try
{
cancelationSource.Cancel();
}
catch (Exception) { }
cancelationSource.Dispose();
Assert.AreEqual(3, callbackCount);
TestHelper.Cleanup();
}
public void RegisteredCallbackExceptionPropagatesToCancelCaller()
{
CancelationSource cancelationSource = CancelationSource.New();
CancelationToken cancelationToken = cancelationSource.Token;
cancelationToken.Register(_ =>
{
throw new Exception();
});
Assert.Throws <AggregateException>(cancelationSource.Cancel);
cancelationSource.Dispose();
TestHelper.Cleanup();
}