tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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sync-iterable-with-rejecting-thenable-closes.js (765B)

      1 // |reftest| async
      2 // Copyright (C) 2025 J. S. Choi. All rights reserved.
      3 // This code is governed by the BSD license found in the LICENSE file.
      4 
      5 /*---
      6 esid: sec-array.fromasync
      7 description: >
      8  Array.fromAsync closes any sync-iterable input with a rejecting thenable.
      9 includes: [asyncHelpers.js]
     10 flags: [async]
     11 features: [Array.fromAsync]
     12 ---*/
     13 
     14 asyncTest(async function () {
     15  const expectedValue = {};
     16  let finallyCounter = 0;
     17  const inputThenable = {
     18    then(resolve, reject) {
     19      reject();
     20    },
     21  };
     22  function* createInput() {
     23    try {
     24      yield inputThenable;
     25    } finally {
     26      finallyCounter++;
     27    }
     28  }
     29  const input = createInput();
     30  try {
     31    await Array.fromAsync(input);
     32  } finally {
     33    assert.sameValue(finallyCounter, 1);
     34  }
     35 });