dom/mls/tests/head_mls.js

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   4  */
   5
   6 "use strict";
   7
   8 //
   9 // Array equality
  10 //
  11 function arraysAreEqual(arr1, arr2) {
  12   if (arr1.length !== arr2.length) {
  13     return false;
  14   }
  15   for (let i = 0; i < arr1.length; i++) {
  16     if (arr1[i] !== arr2[i]) {
  17       return false;
  18     }
  19   }
  20   return true;
  21 }
  22
  23 //
  24 // Serialization / Derserialization helpers
  25 //
  26 function stringToByteArray(str) {
  27   return new TextEncoder().encode(str);
  28 }
  29
  30 function byteArrayToString(byteArray) {
  31   return new TextDecoder().decode(new Uint8Array(byteArray).buffer);
  32 }
  33
  34 function stringToArrayBuffer(str) {
  35   return new Uint8Array(new TextEncoder().encode(str)).buffer;
  36 }
  37
  38 function byteArrayToHexString(buffer) {
  39   const byteArray = new Uint8Array(buffer);
  40   const hexParts = [];
  41   for (let i = 0; i < byteArray.length; i++) {
  42     const hex = byteArray[i].toString(16);
  43     const paddedHex = ("00" + hex).slice(-2);
  44     hexParts.push(paddedHex);
  45   }
  46   return hexParts.join("");
  47 }