Mike Pennisi 1ec40f349a Re-write tests for Promise.prototype internal slots
The original implementation of the test for the absense of a
[[PromiseState]] internal slot did not actually assert the documented
semantics. Re-implement the test to rely on the IsPromise abstract
operation (via `Promise.prototype.then`) to accurately ensure that the
object does not have a [[PromiseState]] internal slot.

In relying on the semantics of the `instanceof` operator, the original
test for the [[Prototype]] internal slot was imprecise (the assertion
could be satisfied if additional objects were incorrectly defined on the
prototype chain). Re-write the test to assert the value of the
[[Prototype]] internal slot directly.
2016-06-27 15:31:01 -04:00
2016-06-21 12:22:47 -04:00
2016-06-22 15:20:24 -07:00

Test262 is the official ECMAScript (ECMA-262) conformance suite.

Test262 tests conformance to the continually maintained draft future ECMAScript standard found at http://tc39.github.io/ecma262/ , together with any Stage 3 or later TC39 proposals. It is maintained by Tom Care (@tcare) with significant contributions from many in the ECMAScript community.

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Official ECMAScript Conformance Test Suite
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