public void WrapNativeAsyncInvoke_ASynchronousCompletionCallsEndFromCallback()
{
StubSupportingCompletedSynchronously myNativeStub = null;
int endFunctionCallCount = 0;
Task t = Utility.WrapNativeAsyncInvoke(
(callback) =>
{
myNativeStub = new StubSupportingCompletedSynchronously(callback)
{
IsCompletedSynchronously_Internal = false
};
return(myNativeStub);
},
(adapter) => Interlocked.Increment(ref endFunctionCallCount),
CancellationToken.None,
"test");
Assert.AreEqual <int>(0, endFunctionCallCount);
// invoke the callback
myNativeStub.get_Callback().Invoke(myNativeStub);
Assert.IsTrue(t.Wait(taskWaitTimeout));
Assert.AreEqual <int>(1, endFunctionCallCount);
}
public void WrapNativeAsyncInvoke_SynchronousCompletionCallsEndAfterBegin()
{
StubSupportingCompletedSynchronously myNativeStub = null;
int endFunctionCallCount = 0;
Task t = Utility.WrapNativeAsyncInvoke(
(callback) =>
{
myNativeStub = new StubSupportingCompletedSynchronously(callback)
{
IsCompletedSynchronously_Internal = true
};
return(myNativeStub);
},
(adapter) => Interlocked.Increment(ref endFunctionCallCount),
CancellationToken.None,
"test");
Assert.IsTrue(t.Wait(taskWaitTimeout));
// since the call completed synchronously the end function should be called without invoking the callback
Assert.AreEqual <int>(1, endFunctionCallCount);
// invoke the callback
myNativeStub.get_Callback().Invoke(myNativeStub);
// the end function should not have been called again
Assert.AreEqual <int>(1, endFunctionCallCount);
}
