Edge case?

[vanhelgen]

Hi there, I was testing my little Promise/A+ library against the 2.0.0 test suite and after some fiddling it finally passed all tests. Then I got back to testing to see how it's working in the wild and I found this issue; here is my contrived test case:

new Promise(function (resolve, reject) {
    var val = Math.random();

    if (val >= 0.5) {
        resolve(val);
    }
    else {
        reject(new Error('Value "' + val + '" too low.'));
    }
})
.then(function (value) {
    console.log('  promise.then.resolved', arguments);
    return 100 * value;
})
.then(null, function (reason) {
    console.warn('  next.promise.then.rejected', arguments);
    return 'error handled';
});

What I would have expected is:
val >= 0.5 -> log('promise.then.resolved')
val < 0.5 -> warn('next.promise.then.rejected')

but instead I saw the first promise resolved after val >= 0.5 but the rejection of val < 0.5 didn't propagate to the next promise so in this case there would be no activity.
val >= 0.5 -> log ...
val < 0.5 -> ...

I was wondering if this is the expected behavior; is it just me not getting the specs or is this a bug in the test suite?

Right now I've fixed this in my lib and the tests still pass - don't know what to make of it...

thx

[domenic]

So you are saying that you created a promise library that passed all the tests, but such that

new Promise(function (resolve, reject) {
  reject();
})
.then(function () {
})
.then(null, function () {
  console.log("never gets here, even though it should?");
});

outputs nothing? That sounds like a gap in the test suite coverage, yeah...