Working with asynchronously rejected promises.

[jamiemill]

I'm having trouble using this library on promises that are resolved asynchronously.

I assumed I could write something like this:

(where getPendingPromise() is a function that returns a promise that will resolve in a few milliseconds)

it('eventually fails with error', function(done) {
    var promise = getPendingPromise();
    promise.should.be.rejected.with('Some Error').and.notify(done);
});

In the code above, my promise is being resolved in the background, and I assumed this library would wait for resolution before making its assertion.

But what actually happens is it times out and done is never called.

If I change the code to add a timeout, then the test passes:

it('eventually fails with error', function(done) {
    var promise = getPendingPromise();
    setTimeout(function() {
        promise.should.be.rejected.with('Some Error').and.notify(done);
    }, 1000);
});

So I wonder if this library can only work with resolved promises? All the internal tests seem to be articulated with already-resolved promises (the fulfilledPromise() and rejectedPromise() factories generate them).

Any clarification would be appreciated.

[domenic]

Wow, that is definitely supposed to work, and I'm embarrassed the test cases don't include such tests. Thanks for catching it.

I'll be spending more time on this package in the near future (i.e. during the upcoming week), and will be sure to get this straightened out then.

[smazurov]

Any headway on this?

[domenic]

I have a rewrite halfway done, I will push it to a branch tonight and if I have time do some work on it. Thanks as always for the prompt; more people getting hit by something does push it up higher in my priority queue.

[domenic]

Rewrite branch pushed so you guys can see some progress at least https://github.com/domenic/chai-as-promised/tree/rewrite but no time to work on it tonight, I think I'm starting to feel sick :-/. This weekend!! I keep saying that, but really, I should be able to make it work this time!!!

[smazurov]

awesome, thanks