tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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invalid-iterable.js (882B)

      1 // Copyright (c) 2023 Ecma International.  All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 esid: sec-object.groupby
      6 description: Object.groupBy with a nullish Symbol.iterator throws
      7 info: |
      8  Object.groupBy ( items, callbackfn )
      9 
     10  ...
     11  GroupBy ( items, callbackfn, coercion )
     12 
     13  4. Let iteratorRecord be ? GetIterator(items).
     14 
     15  ...
     16 features: [array-grouping]
     17 ---*/
     18 
     19 const throws = function () {
     20  throw new Test262Error('callback function should not be called')
     21 };
     22 
     23 function makeIterable(obj, iteratorFn) {
     24  obj[Symbol.iterator] = iteratorFn;
     25  return obj;
     26 }
     27 
     28 assert.throws(TypeError, function () {
     29  Object.groupBy(makeIterable({}, undefined), throws);
     30 }, 'undefined Symbol.iterator');
     31 
     32 assert.throws(TypeError, function () {
     33  Object.groupBy(makeIterable({}, null), throws);
     34 }, 'null Symbol.iterator');
     35 
     36 reportCompare(0, 0);