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Diffstat (limited to 'js/src/tests/ecma_6')
| -rw-r--r-- | js/src/tests/ecma_6/Promise/iterator-close.js | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/js/src/tests/ecma_6/Promise/iterator-close.js b/js/src/tests/ecma_6/Promise/iterator-close.js new file mode 100644 index 000000000..f17260d05 --- /dev/null +++ b/js/src/tests/ecma_6/Promise/iterator-close.js @@ -0,0 +1,234 @@ +// |reftest| skip-if(!xulRuntime.shell) -- needs drainJobQueue + +var BUGNUMBER = 1180306; +var summary = 'Promise.{all,race} should close iterator on error'; + +print(BUGNUMBER + ": " + summary); + +function test(ctor, props, { nextVal=undefined, + nextThrowVal=undefined, + modifier=undefined, + rejectReason=undefined, + rejectType=undefined, + closed=true }) { + function getIterable() { + let iterable = { + closed: false, + [Symbol.iterator]() { + let iterator = { + first: true, + next() { + if (this.first) { + this.first = false; + if (nextThrowVal) + throw nextThrowVal; + return nextVal; + } + return { value: undefined, done: true }; + }, + return() { + iterable.closed = true; + return {}; + } + }; + if (modifier) + modifier(iterator, iterable); + + return iterator; + } + }; + return iterable; + } + for (let prop of props) { + let iterable = getIterable(); + let e; + ctor[prop](iterable).catch(e_ => { e = e_; }); + drainJobQueue(); + if(rejectType) + assertEq(e instanceof rejectType, true); + else + assertEq(e, rejectReason); + assertEq(iterable.closed, closed); + } +} + +// == Error cases with close == + +// ES 2017 draft 25.4.4.1.1 step 6.i. +// ES 2017 draft 25.4.4.3.1 step 3.h. +class MyPromiseStaticResolveGetterThrows extends Promise { + static get resolve() { + throw "static resolve getter throws"; + } +}; +test(MyPromiseStaticResolveGetterThrows, ["all", "race"], { + nextVal: { value: Promise.resolve(1), done: false }, + rejectReason: "static resolve getter throws", + closed: true, +}); + +class MyPromiseStaticResolveThrows extends Promise { + static resolve() { + throw "static resolve throws"; + } +}; +test(MyPromiseStaticResolveThrows, ["all", "race"], { + nextVal: { value: Promise.resolve(1), done: false }, + rejectReason: "static resolve throws", + closed: true, +}); + +// ES 2017 draft 25.4.4.1.1 step 6.q. +// ES 2017 draft 25.4.4.3.1 step 3.i. +class MyPromiseThenGetterThrows extends Promise { + static resolve() { + return { + get then() { + throw "then getter throws"; + } + }; + } +}; +test(MyPromiseThenGetterThrows, ["all", "race"], { + nextVal: { value: Promise.resolve(1), done: false }, + rejectReason: "then getter throws", + closed: true, +}); + +class MyPromiseThenThrows extends Promise { + static resolve() { + return { + then() { + throw "then throws"; + } + }; + } +}; +test(MyPromiseThenThrows, ["all", "race"], { + nextVal: { value: Promise.resolve(1), done: false }, + rejectReason: "then throws", + closed: true, +}); + +// ES 2017 draft 7.4.6 step 3. +// if GetMethod fails, the thrown value should be used. +test(MyPromiseThenThrows, ["all", "race"], { + nextVal: { value: Promise.resolve(1), done: false }, + modifier: (iterator, iterable) => { + Object.defineProperty(iterator, "return", { + get: function() { + iterable.closed = true; + throw "return getter throws"; + } + }); + }, + rejectReason: "return getter throws", + closed: true, +}); +test(MyPromiseThenThrows, ["all", "race"], { + nextVal: { value: Promise.resolve(1), done: false }, + modifier: (iterator, iterable) => { + Object.defineProperty(iterator, "return", { + get: function() { + iterable.closed = true; + return "non object"; + } + }); + }, + rejectType: TypeError, + closed: true, +}); +test(MyPromiseThenThrows, ["all", "race"], { + nextVal: { value: Promise.resolve(1), done: false }, + modifier: (iterator, iterable) => { + Object.defineProperty(iterator, "return", { + get: function() { + iterable.closed = true; + // Non callable. + return {}; + } + }); + }, + rejectType: TypeError, + closed: true, +}); + +// ES 2017 draft 7.4.6 steps 6. +// if return method throws, the thrown value should be ignored. +test(MyPromiseThenThrows, ["all", "race"], { + nextVal: { value: Promise.resolve(1), done: false }, + modifier: (iterator, iterable) => { + iterator.return = function() { + iterable.closed = true; + throw "return throws"; + }; + }, + rejectReason: "then throws", + closed: true, +}); + +test(MyPromiseThenThrows, ["all", "race"], { + nextVal: { value: Promise.resolve(1), done: false }, + modifier: (iterator, iterable) => { + iterator.return = function() { + iterable.closed = true; + return "non object"; + }; + }, + rejectReason: "then throws", + closed: true, +}); + +// == Error cases without close == + +// ES 2017 draft 25.4.4.1.1 step 6.a. +test(Promise, ["all", "race"], { + nextThrowVal: "next throws", + rejectReason: "next throws", + closed: false, +}); + +test(Promise, ["all", "race"], { + nextVal: { value: {}, get done() { throw "done getter throws"; } }, + rejectReason: "done getter throws", + closed: false, +}); + +// ES 2017 draft 25.4.4.1.1 step 6.e. +test(Promise, ["all", "race"], { + nextVal: { get value() { throw "value getter throws"; }, done: false }, + rejectReason: "value getter throws", + closed: false, +}); + +// ES 2017 draft 25.4.4.1.1 step 6.d.iii.2. +let first = true; +class MyPromiseResolveThrows extends Promise { + constructor(executer) { + if (first) { + first = false; + super((resolve, reject) => { + executer(() => { + throw "resolve throws"; + }, reject); + }); + return; + } + super(executer); + } +}; +test(MyPromiseResolveThrows, ["all"], { + nextVal: { value: undefined, done: true }, + rejectReason: "resolve throws", + closed: false, +}); + +// == Successful cases == + +test(Promise, ["all", "race"], { + nextVal: { value: Promise.resolve(1), done: false }, + closed: false, +}); + +if (typeof reportCompare === 'function') + reportCompare(true, true); |