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comparison: js/src/jit-test/tests/collections/Map-forEach.js
js/src/jit-test/tests/collections/Map-forEach.js
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| -1:000000000000 | 0:fb3a8010a231 |
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| 1 /* test Map.prototype.forEach */ | |
| 2 | |
| 3 load(libdir + 'asserts.js'); | |
| 4 load(libdir + 'iteration.js'); | |
| 5 | |
| 6 // testing success conditions of Map.prototype.forEach | |
| 7 | |
| 8 var testMap = new Map(); | |
| 9 | |
| 10 function callback(value, key, map) { | |
| 11 testMap.set(key, value); | |
| 12 assertEq(map.has(key), true); | |
| 13 assertEq(map.get(key), value); | |
| 14 } | |
| 15 | |
| 16 var initialMap = new Map([['a', 1], ['b', 2.3], [false, undefined]]); | |
| 17 initialMap.forEach(callback); | |
| 18 | |
| 19 // test that both the Maps are equal and are in same order | |
| 20 var iterator = initialMap[std_iterator](); | |
| 21 var count = 0; | |
| 22 for (var [k, v] of testMap) { | |
| 23 assertEq(initialMap.has(k), true); | |
| 24 assertEq(initialMap.get(k), testMap.get(k)); | |
| 25 assertIteratorNext(iterator, [k, testMap.get(k)]); | |
| 26 count++; | |
| 27 } | |
| 28 | |
| 29 //check both the Maps we have are equal in size | |
| 30 assertEq(initialMap.size, testMap.size); | |
| 31 assertEq(initialMap.size, count); | |
| 32 | |
| 33 var x = { abc: 'test'}; | |
| 34 function callback2(value, key, map) { | |
| 35 assertEq(x, this); | |
| 36 } | |
| 37 initialMap = new Map([['a', 1]]); | |
| 38 initialMap.forEach(callback2, x); | |
| 39 | |
| 40 // testing failure conditions of Map.prototype.forEach | |
| 41 | |
| 42 var s = new Set([1, 2, 3]); | |
| 43 assertThrowsInstanceOf(function() { | |
| 44 Map.prototype.forEach.call(s, callback); | |
| 45 }, TypeError, "Map.prototype.forEach should raise TypeError if not used on a Map"); | |
| 46 | |
| 47 var fn = 2; | |
| 48 assertThrowsInstanceOf(function() { | |
| 49 initialMap.forEach(fn); | |
| 50 }, TypeError, "Map.prototype.forEach should raise TypeError if callback is not a function"); | |
| 51 | |
| 52 // testing that Map#forEach uses internal next() function and does not stop when | |
| 53 // StopIteration exception is thrown | |
| 54 | |
| 55 var m = new Map([["one", 1]]); | |
| 56 Object.getPrototypeOf(m[std_iterator]()).next = function () { throw "FAIL"; }; | |
| 57 assertThrowsInstanceOf(function () { | |
| 58 m.forEach(function () { throw StopIteration; }); | |
| 59 }, StopIteration, "Map.prototype.forEach should use intrinsic next method."); |
