public void GivenCallbackWhichReturnsNull_WhenLegallyCalled_ItShouldThrowUnexpectedPipePackageOperationException
()
{
PipeCallback processCallbackFunc = (input, broker) => null;
PipeOutputPackage pipePackageOption = PipeOutputPackage.Direct(typeof(string), typeof(string),
processCallbackFunc);
Assert.Throws <UnexpectedPipePackageOperationException>(
async() => await pipePackageOption.ProcessInput("abc", null));
}
public async Task GivenEchoCallback_WhenItIsCalledWithInput_ItShouldReturnTheInput()
{
PipeCallback processCallbackFunc = (input, broker) => Task.FromResult(input);
PipeOutputPackage pipePackageOption = PipeOutputPackage.Direct(typeof(string), typeof(string),
processCallbackFunc);
object output = await pipePackageOption.ProcessInput("abc", null);
Assert.AreEqual("abc", output);
}
public void Ctor_WhenNullToProcessCallbackFuncParameter_ItShouldThrowArgumentNullExcpetion()
{
var argumentNullException = Assert.Throws <ArgumentNullException>(() =>
{
PipeOutputPackage pipePackageOption = PipeOutputPackage.Direct(typeof(string), typeof(string), null);
Assert.Fail();
});
Assert.AreEqual("processCallbackFunc", argumentNullException.ParamName);
}
GivenProcessorWhichReturnsString_WhenProcesCallbackReturnsInteger_ItShouldThrowUnexpectedPipePackageOperationException
()
{
PipeCallback processCallbackFunc = (input, broker) => Task.FromResult((object)2);
PipeOutputPackage pipePackageOption = PipeOutputPackage.Direct(typeof(string), typeof(string),
processCallbackFunc);
Assert.Throws <UnexpectedPipePackageOperationException>(
async() => await pipePackageOption.ProcessInput("abc", null));
}
public void GivenPackageWhichProcessesIntegers_WhenInputParameterIsStringType_ItShouldThrowNotArgumentException()
{
PipeCallback processCallbackFunc = (input, broker) => Task.FromResult((object)"abc");
PipeOutputPackage pipePackageOption = PipeOutputPackage.Direct(typeof(int), typeof(string),
processCallbackFunc);
var argumentException =
Assert.Throws <ArgumentException>(async() => await pipePackageOption.ProcessInput("abc", null));
Assert.AreEqual("input", argumentException.ParamName);
}
public void GivenPackageInstance_WhenNullPassedIntoInputParameter_ItShouldThrowArgumentNullException()
{
PipeCallback processCallbackFunc = (input, broker) => null;
PipeOutputPackage pipePackageOption = PipeOutputPackage.Direct(typeof(string), typeof(string),
processCallbackFunc);
var argumentNullException =
Assert.Throws <ArgumentNullException>(async() => await pipePackageOption.ProcessInput(null, null));
Assert.AreEqual("input", argumentNullException.ParamName);
}
private static PipeOutputPackage CreatePipeOutputPackage <TSource, TDestination>(
Func <TSource, ISemanticBroker, TDestination> processCallback)
{
PipeCallback wrappedProcessCallback = (input, broker) =>
{
var castedInput = (TSource)input;
object result = processCallback(castedInput, broker);
return(result.IntoTaskResult());
};
return(PipeOutputPackage.Direct(typeof(TSource), typeof(TDestination), wrappedProcessCallback));
}
public void Ctor_WhenNullToOutputTypeParameter_ItShouldThrowArgumentNullExcpetion()
{
var argumentNullException = Assert.Throws <ArgumentNullException>(() =>
{
PipeCallback processCallbackFunc = (input, broker) => null;
PipeOutputPackage pipePackageOption = PipeOutputPackage.Direct(typeof(string), null,
processCallbackFunc);
Assert.Fail();
});
Assert.AreEqual("outputType", argumentNullException.ParamName);
}
private static PipeOutputPackage CreateAsyncPipeOutputPackage <TSource, TDestination>(
Func <TSource, ISemanticBroker, Task <TDestination> > processCallback)
{
PipeCallback wrappedProcessCallback = (input, broker) =>
{
var castedInput = (TSource)input;
return
(processCallback(castedInput, broker)
.ContinueWith(task => (object)task.Result));
};
return(PipeOutputPackage.Direct(typeof(TSource), typeof(TDestination), wrappedProcessCallback));
}
