public void Response_stream_is_rebuffered()
{
// strategy:
// reuse a single buffer for all writes.
// don't spool through the scheduler until after app is done writing.
//
// if implementation simply keeps a reference to the supplied buffer,
// its contents will be the contents of the final write and the
// received body will be garbage. consumer must copy out of
// producer's buffer.
byte[] b = new byte[6];
Func<string, ArraySegment<byte>> bytes = s =>
{
var sb = Encoding.ASCII.GetBytes(s);
System.Buffer.BlockCopy(sb, 0, b, 0, sb.Length);
return new ArraySegment<byte>(b, 0, sb.Length);
};
var app = new StaticApp(null, null, (onNext, onError, onComplete) =>
{
onNext(bytes("kanye "), null);
onNext(bytes("west "), null);
onNext(bytes("is "), null);
onNext(bytes("a "), null);
onNext(bytes("pussy."), null);
return () => { };
});
var scheduler = new MockScheduler();
var middleware = new RescheduleCallbacksMiddleware(app.Invoke, scheduler);
var responseDelegate = new MockResponseDelegate();
BufferingConsumer bodyConsumer = null;
scheduler.Post(() =>
{
middleware.Invoke(new Dictionary<string, object>(), (status, headers, body) =>
{
bodyConsumer = body.Consume();
}, e => { });
});
scheduler.Start();
var bodyString = bodyConsumer.Buffer.GetString();
Assert.That(bodyString, Is.EqualTo("kanye west is a pussy."));
}
public void Wrapped_apps_onNext_gets_rescheduled_continuation_iff_wrapping_app_provides_continuation()
{
var app = new StaticApp(null, null, null);
bool gotComplete = false;
int gotOnNext = 0;
Action ack0 = null;
Action ack1 = null;
var scheduler = new MockScheduler();
app.OnRequest = () => {
var env = new Environment(app.Env);
env.Body((data, ack) => {
gotOnNext++;
if (gotOnNext == 1)
ack0 = ack;
if (gotOnNext == 2)
ack1 = ack;
if (ack == null)
return false;
else
{
return true;
}
},
e => {
},
() => { gotComplete = true; });
};
var middleware = new RescheduleCallbacksMiddleware(app.Invoke, scheduler);
scheduler.Post(() =>
{
middleware.Invoke(new Environment() {
Body = (onNext, onError, onComplete) => {
onNext(default(ArraySegment<byte>), null);
onNext(default(ArraySegment<byte>), () => onComplete());
return () => { };
}
}, (status, headers, body) =>
{
},
e => { });
});
scheduler.Start();
Assert.That(gotOnNext, Is.EqualTo(2));
Assert.That(ack0, Is.Null);
Assert.That(ack1, Is.Not.Null);
// queues the continuation (which invokes onComplete) on the scheduler. onComplete should not be called yet.
ack1();
Assert.That(gotComplete, Is.False);
// now run the scheduler more. after its done onComplete should have been called.
scheduler.Start();
Assert.That(gotComplete, Is.True);
}
