Promise doesn't handle then-able result

[RuralHunter]

In real browser(Chrome), if the resolve function returns a then-able object(having then function), Promise.then handles it. But htmlunit fails to do so. Test case:

           var thenable={
                then: function(onFulfill, onReject) { onFulfill('fulfilled!'); },
                value: 'aaa'
            };
            var p = Promise.resolve(1);
            var p1=p.then(function(value) {
                //console.log(value);
                return thenable;
            });
            p1.then(function(value) {
                console.log(value);
            });

chrome outputs 'fulfilled!' but htmlunit outputs the thenable object.

[rbri]

Hi Rural,
any chance to make a bunch of test cases as PR for this?

[rbri]

Maybe you can take com.gargoylesoftware.htmlunit.javascript.host.PromiseTest.resolveThenables() as starting point

[RuralHunter]

Ok, I will try.

[RuralHunter]

PR created.

[rbri]

Hi @RuralHunter,

hopefully i have fixed your case. Please check the tests i wrote and feel free to add more test cases if you think there is something missing.
Will make a new snapshot as soon as the CI build is green.

[rbri]

Have added on more test.

Will close this - please open a new one if you have more problems. Will work on you other issues later.
Thanks for the contribution.