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.
243 lines
9.0 KiB
JavaScript
243 lines
9.0 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 HextileDecoder from '../core/decoders/hextile.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 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('Hextile 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 HextileDecoder();
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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 a tile with fg, bg specified, normal subrects', function () {
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let data = [];
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data.push(0x02 | 0x04 | 0x08); // bg spec, fg spec, anysubrects
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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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data.push(2); // 2 subrects
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data.push(0); // x: 0, y: 0
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data.push(1 | (1 << 4)); // width: 2, height: 2
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data.push(2 | (2 << 4)); // x: 2, y: 2
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data.push(1 | (1 << 4)); // width: 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 a raw tile', function () {
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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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let data = [];
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data.push(0x01); // raw
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for (let i = 0; i < targetData.length; i += 4) {
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data.push(targetData[i]);
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data.push(targetData[i + 1]);
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data.push(targetData[i + 2]);
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// Last byte zero to test correct alpha handling
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data.push(0);
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}
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let done = testDecodeRect(decoder, 0, 0, 4, 4, data, display, 24);
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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 a tile with only bg specified (solid bg)', function () {
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let data = [];
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data.push(0x02);
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push32(data, 0x00ff0000); // becomes 00ff0000 --> #00FF00 bg color
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let done = testDecodeRect(decoder, 0, 0, 4, 4, data, display, 24);
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let expected = [];
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for (let i = 0; i < 16; i++) {
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push32(expected, 0x00ff00ff);
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}
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expect(done).to.be.true;
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expect(display).to.have.displayed(new Uint8Array(expected));
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});
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it('should handle a tile with only bg specified and an empty frame afterwards', function () {
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// set the width so we can have two tiles
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display.resize(8, 4);
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let data = [];
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// send a bg frame
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data.push(0x02);
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push32(data, 0x00ff0000); // becomes 00ff0000 --> #00FF00 bg color
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// send an empty frame
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data.push(0x00);
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let done = testDecodeRect(decoder, 0, 0, 32, 4, data, display, 24);
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let expected = [];
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for (let i = 0; i < 16; i++) {
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push32(expected, 0x00ff00ff); // rect 1: solid
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}
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for (let i = 0; i < 16; i++) {
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push32(expected, 0x00ff00ff); // rect 2: same bkground color
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}
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expect(done).to.be.true;
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expect(display).to.have.displayed(new Uint8Array(expected));
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});
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it('should handle a tile with bg and coloured subrects', function () {
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let data = [];
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data.push(0x02 | 0x08 | 0x10); // bg spec, anysubrects, colouredsubrects
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push32(data, 0x00ff0000); // becomes 00ff0000 --> #00FF00 bg color
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data.push(2); // 2 subrects
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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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data.push(0); // x: 0, y: 0
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data.push(1 | (1 << 4)); // width: 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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data.push(2 | (2 << 4)); // x: 2, y: 2
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data.push(1 | (1 << 4)); // width: 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 carry over fg and bg colors from the previous tile if not specified', function () {
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display.resize(4, 17);
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let data = [];
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data.push(0x02 | 0x04 | 0x08); // bg spec, fg spec, anysubrects
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push32(data, 0xff00ff); // becomes 00ff00ff --> #00FF00 bg color
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data.push(0x00); // becomes 0000ffff --> #0000FF fg color
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data.push(0x00);
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data.push(0xff);
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data.push(0xff);
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data.push(8); // 8 subrects
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for (let i = 0; i < 4; i++) {
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data.push((0 << 4) | (i * 4)); // x: 0, y: i*4
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data.push(1 | (1 << 4)); // width: 2, height: 2
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data.push((2 << 4) | (i * 4 + 2)); // x: 2, y: i * 4 + 2
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data.push(1 | (1 << 4)); // width: 2, height: 2
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}
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data.push(0x08); // anysubrects
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data.push(1); // 1 subrect
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data.push(0); // x: 0, y: 0
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data.push(1 | (1 << 4)); // width: 2, height: 2
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let done = testDecodeRect(decoder, 0, 0, 4, 17, data, display, 24);
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let targetData = [
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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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let expected = [];
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for (let i = 0; i < 4; i++) {
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expected = expected.concat(targetData);
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}
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expected = expected.concat(targetData.slice(0, 16));
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expect(done).to.be.true;
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expect(display).to.have.displayed(new Uint8Array(expected));
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});
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it('should fail on an invalid subencoding', function () {
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let data = [45]; // an invalid subencoding
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expect(() => testDecodeRect(decoder, 0, 0, 4, 4, data, display, 24)).to.throw();
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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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