public void TestCallbackHandlers()
{
var tokenSource = new CancellationTokenSource();
var callbackHandlersDict = new ConcurrentDictionary <int, ICallbackHandler>();
int inputToHandler = 1;
{
// Test CallbackConnection using a ICallbackHandler that runs
// normally without error.
var callbackHandler = new TestCallbackHandler
{
Id = 1
};
callbackHandlersDict[callbackHandler.Id] = callbackHandler;
TestCallbackConnection(
callbackHandlersDict,
callbackHandler,
inputToHandler,
tokenSource.Token);
Assert.Single(callbackHandler.Inputs);
Assert.Equal(
callbackHandler.Apply(inputToHandler),
callbackHandler.Inputs.First());
}
{
// Test CallbackConnection using a ICallbackHandler that
// throws an exception.
var callbackHandler = new ThrowsExceptionHandler
{
Id = 2
};
callbackHandlersDict[callbackHandler.Id] = callbackHandler;
TestCallbackConnection(
callbackHandlersDict,
callbackHandler,
inputToHandler,
tokenSource.Token);
Assert.Empty(callbackHandler.Inputs);
}
{
// Test CallbackConnection when cancellation has been requested for the token.
tokenSource.Cancel();
var callbackHandler = new TestCallbackHandler
{
Id = 3
};
callbackHandlersDict[callbackHandler.Id] = callbackHandler;
TestCallbackConnection(
callbackHandlersDict,
callbackHandler,
inputToHandler,
tokenSource.Token);
Assert.Empty(callbackHandler.Inputs);
}
}
public async Task WhenHandlingAnything_ThenThrowsWellKnownException()
{
var handler = new ThrowsExceptionHandler();
var body = new byte[] { };
var headers = new Dictionary <string, string>();
var context = new ProcessingContext("", "", "");
await AssertExt.ThrowsAsync <JustForTestingException>(
() => handler.ExecuteAsync(context, body, headers)
);
}