diff options
Diffstat (limited to 'js/src/jit-test/tests/promise/promise-any-with-non-default-resolving.js')
-rw-r--r-- | js/src/jit-test/tests/promise/promise-any-with-non-default-resolving.js | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/promise/promise-any-with-non-default-resolving.js b/js/src/jit-test/tests/promise/promise-any-with-non-default-resolving.js new file mode 100644 index 0000000000..27a178331a --- /dev/null +++ b/js/src/jit-test/tests/promise/promise-any-with-non-default-resolving.js @@ -0,0 +1,58 @@ +// |jit-test| skip-if: !Promise.any + +function newPromiseCapability() { + var resolve, reject, promise = new Promise(function(r1, r2) { + resolve = r1; + reject = r2; + }); + return {promise, resolve, reject}; +} + +function neverCalled() { + // Quit with non-zero exit code to ensure a test suite error is shown, + // even when this function is called within promise handlers which normally + // swallow any exceptions. + quit(1); +} + +var {promise, resolve} = newPromiseCapability(); + +var getterCount = 0; + +class P extends Promise { + constructor(executor) { + var {promise, resolve, reject} = newPromiseCapability(); + + executor(function(v) { + // Resolve the promise. + resolve(v); + + // But then return an object from the resolve function. This object + // must be treated as the resolution value for the otherwise + // skipped promise which gets created when Promise.prototype.then is + // called in PerformPromiseRace. + return { + get then() { + getterCount++; + } + }; + }, neverCalled); + + return promise; + } + + // Default to the standard Promise.resolve function, so we don't create + // another instance of this class when resolving the passed promise objects + // in Promise.race. + static resolve(v) { + return Promise.resolve(v); + } +} + +P.any([promise]); + +resolve(0); + +drainJobQueue(); + +assertEq(getterCount, 1); |