eb0ad829d2
This is extra important in the tests where we expect no changes to the display, as otherwise we can't tell the difference between success and a decoder that is simply waiting for more data.
116 lines
3.8 KiB
JavaScript
116 lines
3.8 KiB
JavaScript
const expect = chai.expect;
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import Websock from '../core/websock.js';
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import Display from '../core/display.js';
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import RREDecoder from '../core/decoders/rre.js';
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import FakeWebSocket from './fake.websocket.js';
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function testDecodeRect(decoder, x, y, width, height, data, display, depth) {
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let sock;
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let done = false;
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sock = new Websock;
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sock.open("ws://example.com");
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sock.on('message', () => {
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done = decoder.decodeRect(x, y, width, height, sock, display, depth);
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});
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// Empty messages are filtered at multiple layers, so we need to
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// do a direct call
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if (data.length === 0) {
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done = decoder.decodeRect(x, y, width, height, sock, display, depth);
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} else {
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sock._websocket._receiveData(new Uint8Array(data));
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}
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display.flip();
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return done;
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}
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function push16(arr, num) {
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arr.push((num >> 8) & 0xFF,
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num & 0xFF);
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}
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function push32(arr, num) {
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arr.push((num >> 24) & 0xFF,
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(num >> 16) & 0xFF,
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(num >> 8) & 0xFF,
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num & 0xFF);
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}
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describe('RRE Decoder', function () {
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let decoder;
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let display;
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before(FakeWebSocket.replace);
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after(FakeWebSocket.restore);
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beforeEach(function () {
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decoder = new RREDecoder();
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display = new Display(document.createElement('canvas'));
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display.resize(4, 4);
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});
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// TODO(directxman12): test rre_chunk_sz?
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it('should handle the RRE encoding', function () {
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let data = [];
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push32(data, 2); // 2 subrects
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push32(data, 0x00ff0000); // becomes 00ff0000 --> #00FF00 bg color
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data.push(0x00); // becomes 0000ff00 --> #0000FF fg color
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data.push(0x00);
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data.push(0xff);
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data.push(0x00);
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push16(data, 0); // x: 0
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push16(data, 0); // y: 0
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push16(data, 2); // width: 2
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push16(data, 2); // height: 2
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data.push(0x00); // becomes 0000ff00 --> #0000FF fg color
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data.push(0x00);
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data.push(0xff);
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data.push(0x00);
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push16(data, 2); // x: 2
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push16(data, 2); // y: 2
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push16(data, 2); // width: 2
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push16(data, 2); // height: 2
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let done = testDecodeRect(decoder, 0, 0, 4, 4, data, display, 24);
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let targetData = new Uint8Array([
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0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255, 0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255,
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0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255, 0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255,
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0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255, 0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255,
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0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255, 0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255
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]);
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expect(done).to.be.true;
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expect(display).to.have.displayed(targetData);
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});
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it('should handle empty rects', function () {
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display.fillRect(0, 0, 4, 4, [ 0x00, 0x00, 0xff ]);
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display.fillRect(2, 0, 2, 2, [ 0x00, 0xff, 0x00 ]);
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display.fillRect(0, 2, 2, 2, [ 0x00, 0xff, 0x00 ]);
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let done = testDecodeRect(decoder, 1, 2, 0, 0,
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[ 0x00, 0x00, 0x00, 0x00,
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0xff, 0xff, 0xff, 0xff ],
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display, 24);
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let targetData = new Uint8Array([
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0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255, 0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255,
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0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255, 0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255,
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0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255, 0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255,
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0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255, 0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255
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]);
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expect(done).to.be.true;
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expect(display).to.have.displayed(targetData);
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});
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});
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