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Diffstat (limited to 'js/src/tests/test262/built-ins/Promise/race/resolve-prms-cstm-then.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Promise/race/resolve-prms-cstm-then.js | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Promise/race/resolve-prms-cstm-then.js b/js/src/tests/test262/built-ins/Promise/race/resolve-prms-cstm-then.js new file mode 100644 index 0000000000..a31f9b2133 --- /dev/null +++ b/js/src/tests/test262/built-ins/Promise/race/resolve-prms-cstm-then.js @@ -0,0 +1,56 @@ +// |reftest| async +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +description: Resolving with a resolved Promise instance whose `then` method has been overridden +es6id: 25.4.4.3 +info: | + [...] + 6. Let promiseCapability be NewPromiseCapability(C). + [...] + 11. Let result be PerformPromiseRace(iteratorRecord, promiseCapability, C). + [...] + + 25.4.4.3.1 Runtime Semantics: PerformPromiseRace + 1. Repeat + [...] + j. Let result be Invoke(nextPromise, "then", + «promiseCapability.[[Resolve]], promiseCapability.[[Reject]]»). + + 25.4.1.3.2 Promise Resolve Functions + [...] + 8. Let then be Get(resolution, "then"). + 9. If then is an abrupt completion, then + [...] + 10. Let thenAction be then.[[value]]. + 11. If IsCallable(thenAction) is false, then + [...] + 12. Perform EnqueueJob ("PromiseJobs", PromiseResolveThenableJob, + «promise, resolution, thenAction») +flags: [async] +---*/ + +var value = {}; +var thenableValue = { + then: function(resolve) { + resolve(value); + } +}; +var thenable = new Promise(function(resolve) { + resolve(); +}); + +thenable.then = function(resolve) { + resolve(thenableValue); +}; + +Promise.race([thenable]) + .then(function(val) { + if (val !== value) { + $DONE('The promise should be resolved with the correct value.'); + return; + } + $DONE(); + }, function() { + $DONE('The promise should not be rejected.'); + }); |