85 lines
3.0 KiB
JavaScript
85 lines
3.0 KiB
JavaScript
import Websock from '../core/websock.js';
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import Display from '../core/display.js';
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import ZlibDecoder from '../core/decoders/zlib.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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describe('Zlib 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 ZlibDecoder();
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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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it('should handle the Zlib encoding', function () {
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let done;
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let zlibData = new Uint8Array([
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0x00, 0x00, 0x00, 0x23, /* length */
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0x78, 0x01, 0xfa, 0xcf, 0x00, 0x04, 0xff, 0x61, 0x04, 0x90, 0x01, 0x41, 0x50, 0xc1, 0xff, 0x0c,
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0xef, 0x40, 0x02, 0xef, 0xfe, 0x33, 0xac, 0x02, 0xe2, 0xd5, 0x40, 0x8c, 0xce, 0x07, 0x00, 0x00,
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0x00, 0xff, 0xff,
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]);
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done = testDecodeRect(decoder, 0, 0, 4, 4, zlibData, display, 24);
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expect(done).to.be.true;
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let targetData = new Uint8ClampedArray([
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0xff, 0x00, 0x00, 255, 0x00, 0xff, 0x00, 255, 0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255,
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0x00, 0xff, 0x00, 255, 0xff, 0x00, 0x00, 255, 0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255,
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0xee, 0x00, 0xff, 255, 0x00, 0xee, 0xff, 255, 0xaa, 0xee, 0xff, 255, 0xab, 0xee, 0xff, 255,
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0xee, 0x00, 0xff, 255, 0x00, 0xee, 0xff, 255, 0xaa, 0xee, 0xff, 255, 0xab, 0xee, 0xff, 255
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]);
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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, [], 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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