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Diffstat (limited to 'js/src/tests/ecma_6/Map/constructor-iterator-close.js')
| -rw-r--r-- | js/src/tests/ecma_6/Map/constructor-iterator-close.js | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/js/src/tests/ecma_6/Map/constructor-iterator-close.js b/js/src/tests/ecma_6/Map/constructor-iterator-close.js new file mode 100644 index 000000000..ba4bee4a7 --- /dev/null +++ b/js/src/tests/ecma_6/Map/constructor-iterator-close.js @@ -0,0 +1,253 @@ +var BUGNUMBER = 1180306; +var summary = 'Map/Set/WeakMap/WeakSet constructor should close iterator on error'; + +print(BUGNUMBER + ": " + summary); + +function test(ctors, { nextVal=undefined, + nextThrowVal=undefined, + modifier=undefined, + exceptionVal=undefined, + exceptionType=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 ctor of ctors) { + let iterable = getIterable(); + if (exceptionVal) { + let caught = false; + try { + new ctor(iterable); + } catch (e) { + assertEq(e, exceptionVal); + caught = true; + } + assertEq(caught, true); + } else if (exceptionType) { + assertThrowsInstanceOf(() => new ctor(iterable), exceptionType); + } else { + new ctor(iterable); + } + assertEq(iterable.closed, closed); + } +} + +// == Error cases with close == + +// ES 2017 draft 23.1.1.1 Map step 8.d.ii. +// ES 2017 draft 23.3.1.1 WeakMap step 8.d.ii. +test([Map, WeakMap], { + nextVal: { value: "non object", done: false }, + exceptionType: TypeError, + closed: true, +}); + +// ES 2017 draft 23.1.1.1 Map step 8.f. +// ES 2017 draft 23.3.1.1 WeakMap step 8.f. +test([Map, WeakMap], { + nextVal: { value: { get 0() { throw "0 getter throws"; } }, done: false }, + exceptionVal: "0 getter throws", + closed: true, +}); + +// ES 2017 draft 23.1.1.1 Map step 8.h. +// ES 2017 draft 23.3.1.1 WeakMap step 8.h. +test([Map, WeakMap], { + nextVal: { value: { 0: {}, get 1() { throw "1 getter throws"; } }, done: false }, + exceptionVal: "1 getter throws", + closed: true, +}); + +// ES 2017 draft 23.1.1.1 Map step 8.j. +// ES 2017 draft 23.3.1.1 WeakMap step 8.j. +class MyMap extends Map { + set(k, v) { + throw "setter throws"; + } +} +class MyWeakMap extends WeakMap { + set(k, v) { + throw "setter throws"; + } +} +test([MyMap, MyWeakMap], { + nextVal: { value: [{}, {}], done: false }, + exceptionVal: "setter throws", + closed: true, +}); + +// ES 2017 draft 23.2.1.1 Set step 8.e. +// ES 2017 draft 23.4.1.1 WeakSet step 8.e. +class MySet extends Set { + add(v) { + throw "adder throws"; + } +} +class MyWeakSet extends WeakSet { + add(v) { + throw "adder throws"; + } +} +test([MySet, MyWeakSet], { + nextVal: { value: {}, done: false }, + exceptionVal: "adder throws", + closed: true, +}); + +// ES 2017 draft 7.4.6 step 3. +// if GetMethod fails, the thrown value should be used. +test([MyMap, MySet, MyWeakMap, MyWeakSet], { + nextVal: { value: [{}, {}], done: false }, + modifier: (iterator, iterable) => { + Object.defineProperty(iterator, "return", { + get: function() { + iterable.closed = true; + throw "return getter throws"; + } + }); + }, + exceptionVal: "return getter throws", + closed: true, +}); +test([MyMap, MySet, MyWeakMap, MyWeakSet], { + nextVal: { value: [{}, {}], done: false }, + modifier: (iterator, iterable) => { + Object.defineProperty(iterator, "return", { + get: function() { + iterable.closed = true; + return "non object"; + } + }); + }, + exceptionType: TypeError, + closed: true, +}); +test([MyMap, MySet, MyWeakMap, MyWeakSet], { + nextVal: { value: [{}, {}], done: false }, + modifier: (iterator, iterable) => { + Object.defineProperty(iterator, "return", { + get: function() { + iterable.closed = true; + // Non callable. + return {}; + } + }); + }, + exceptionType: TypeError, + closed: true, +}); + +// ES 2017 draft 7.4.6 steps 6. +// if return method throws, the thrown value should be ignored. +test([MyMap, MyWeakMap], { + nextVal: { value: [{}, {}], done: false }, + modifier: (iterator, iterable) => { + iterator.return = function() { + iterable.closed = true; + throw "return throws"; + }; + }, + exceptionVal: "setter throws", + closed: true, +}); +test([MySet, MyWeakSet], { + nextVal: { value: [{}, {}], done: false }, + modifier: (iterator, iterable) => { + iterator.return = function() { + iterable.closed = true; + throw "return throws"; + }; + }, + exceptionVal: "adder throws", + closed: true, +}); + +test([MyMap, MyWeakMap], { + nextVal: { value: [{}, {}], done: false }, + modifier: (iterator, iterable) => { + iterator.return = function() { + iterable.closed = true; + return "non object"; + }; + }, + exceptionVal: "setter throws", + closed: true, +}); +test([MySet, MyWeakSet], { + nextVal: { value: [{}, {}], done: false }, + modifier: (iterator, iterable) => { + iterator.return = function() { + iterable.closed = true; + return "non object"; + }; + }, + exceptionVal: "adder throws", + closed: true, +}); + +// == Error cases without close == + +// ES 2017 draft 23.1.1.1 Map step 8.a. +// ES 2017 draft 23.3.1.1 WeakMap step 8.a. +// ES 2017 draft 23.2.1.1 Set step 8.a. +// ES 2017 draft 23.4.1.1 WeakSet step 8.a. +test([Map, WeakMap, Set, WeakSet], { + nextThrowVal: "next throws", + exceptionVal: "next throws", + closed: false, +}); +test([Map, WeakMap, Set, WeakSet], { + nextVal: { value: {}, get done() { throw "done getter throws"; } }, + exceptionVal: "done getter throws", + closed: false, +}); + +// ES 2017 draft 23.1.1.1 Map step 8.c. +// ES 2017 draft 23.3.1.1 WeakMap step 8.c. +// ES 2017 draft 23.2.1.1 Set step 8.c. +// ES 2017 draft 23.4.1.1 WeakSet step 8.c. +test([Map, WeakMap, Set, WeakSet], { + nextVal: { get value() { throw "value getter throws"; }, done: false }, + exceptionVal: "value getter throws", + closed: false, +}); + +// == Successful cases == + +test([Map, WeakMap], { + nextVal: { value: [{}, {}], done: false }, + closed: false, +}); +test([Set, WeakSet], { + nextVal: { value: {}, done: false }, + closed: false, +}); + +if (typeof reportCompare === 'function') + reportCompare(true, true); |