tests/test.copyrect.js

   1 const expect = chai.expect;
   2
   3 import Websock from '../core/websock.js';
   4 import Display from '../core/display.js';
   5
   6 import CopyRectDecoder from '../core/decoders/copyrect.js';
   7
   8 import FakeWebSocket from './fake.websocket.js';
   9
  10 function testDecodeRect(decoder, x, y, width, height, data, display, depth) {
  11     let sock;
  12
  13     sock = new Websock;
  14     sock.open("ws://example.com");
  15
  16     sock.on('message', () => {
  17         decoder.decodeRect(x, y, width, height, sock, display, depth);
  18     });
  19
  20     sock._websocket._receiveData(new Uint8Array(data));
  21
  22     display.flip();
  23 }
  24
  25 describe('CopyRect Decoder', function () {
  26     let decoder;
  27     let display;
  28
  29     before(FakeWebSocket.replace);
  30     after(FakeWebSocket.restore);
  31
  32     beforeEach(function () {
  33         decoder = new CopyRectDecoder();
  34         display = new Display(document.createElement('canvas'));
  35         display.resize(4, 4);
  36     });
  37
  38     it('should handle the CopyRect encoding', function () {
  39         // seed some initial data to copy
  40         display.fillRect(0, 0, 4, 4, [ 0x11, 0x22, 0x33 ]);
  41         display.fillRect(0, 0, 2, 2, [ 0x00, 0x00, 0xff ]);
  42         display.fillRect(2, 0, 2, 2, [ 0x00, 0xff, 0x00 ]);
  43
  44         testDecodeRect(decoder, 0, 2, 2, 2,
  45                        [0x00, 0x02, 0x00, 0x00],
  46                        display, 24);
  47         testDecodeRect(decoder, 2, 2, 2, 2,
  48                        [0x00, 0x00, 0x00, 0x00],
  49                        display, 24);
  50
  51         let targetData = new Uint8Array([
  52             0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255, 0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255,
  53             0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255, 0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255,
  54             0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255, 0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255,
  55             0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255, 0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255
  56         ]);
  57
  58         expect(display).to.have.displayed(targetData);
  59     });
  60 });