kc3-lang/brotli/js/decode_test.ts

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• Hash : 11abde4c
  Author :
  Date : 2023-04-26T18:32:46
  

  Add tests for TS brotli decoder
  
  PiperOrigin-RevId: 527326003
  

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• js/decode_test.ts

• /* Copyright 2023 Google Inc. All Rights Reserved.
  
     Distributed under MIT license.
     See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
  */
  
  import 'jasmine';
  
  import {brotliDecode} from './decode';
  
  function bytesToString(bytes: Int8Array): string {
    const chars: number[] = new Uint16Array(bytes) as unknown as number[];
    return String.fromCharCode.apply(null, chars);
  }
  
  function stringToBytes(str: string): Int8Array {
    const out = new Int8Array(str.length);
    for (let i = 0; i < str.length; ++i) out[i] = str.charCodeAt(i);
    return out;
  }
  
  describe('DecodeTest', () => {
    it('testMetadata', () => {
      expect('').toEqual(
          bytesToString(brotliDecode(Int8Array.from([1, 11, 0, 42, 3]))));
    });
  
    it('testCompoundDictionary', () => {
      const txt = 'kot lomom kolol slona\n';
      const dictionary = stringToBytes(txt);
      const compressed =
          [0xa1, 0xa8, 0x00, 0xc0, 0x2f, 0x01, 0x10, 0xc4, 0x44, 0x09, 0x00];
      expect(txt.length).toEqual(compressed.length * 2);
      const options = {'customDictionary': dictionary};
      expect(txt).toEqual(
          bytesToString(brotliDecode(Int8Array.from(compressed), options)));
    });
  });
  

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