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.
149 lines
6.4 KiB
JavaScript
149 lines
6.4 KiB
JavaScript
const expect = chai.expect;
|
|
|
|
import Websock from '../core/websock.js';
|
|
import Display from '../core/display.js';
|
|
|
|
import TightPngDecoder from '../core/decoders/tightpng.js';
|
|
|
|
import FakeWebSocket from './fake.websocket.js';
|
|
|
|
function testDecodeRect(decoder, x, y, width, height, data, display, depth) {
|
|
let sock;
|
|
let done = false;
|
|
|
|
sock = new Websock;
|
|
sock.open("ws://example.com");
|
|
|
|
sock.on('message', () => {
|
|
done = decoder.decodeRect(x, y, width, height, sock, display, depth);
|
|
});
|
|
|
|
// Empty messages are filtered at multiple layers, so we need to
|
|
// do a direct call
|
|
if (data.length === 0) {
|
|
done = decoder.decodeRect(x, y, width, height, sock, display, depth);
|
|
} else {
|
|
sock._websocket._receiveData(new Uint8Array(data));
|
|
}
|
|
|
|
display.flip();
|
|
|
|
return done;
|
|
}
|
|
|
|
describe('TightPng Decoder', function () {
|
|
let decoder;
|
|
let display;
|
|
|
|
before(FakeWebSocket.replace);
|
|
after(FakeWebSocket.restore);
|
|
|
|
beforeEach(function () {
|
|
decoder = new TightPngDecoder();
|
|
display = new Display(document.createElement('canvas'));
|
|
display.resize(4, 4);
|
|
});
|
|
|
|
it('should handle the TightPng encoding', function (done) {
|
|
let data = [
|
|
// Control bytes
|
|
0xa0, 0xb4, 0x04,
|
|
// PNG data
|
|
0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a,
|
|
0x00, 0x00, 0x00, 0x0d, 0x49, 0x48, 0x44, 0x52,
|
|
0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x04,
|
|
0x08, 0x02, 0x00, 0x00, 0x00, 0x26, 0x93, 0x09,
|
|
0x29, 0x00, 0x00, 0x01, 0x84, 0x69, 0x43, 0x43,
|
|
0x50, 0x49, 0x43, 0x43, 0x20, 0x70, 0x72, 0x6f,
|
|
0x66, 0x69, 0x6c, 0x65, 0x00, 0x00, 0x28, 0x91,
|
|
0x7d, 0x91, 0x3d, 0x48, 0xc3, 0x40, 0x18, 0x86,
|
|
0xdf, 0xa6, 0x6a, 0x45, 0x2a, 0x0e, 0x76, 0x10,
|
|
0x71, 0x08, 0x52, 0x9d, 0x2c, 0x88, 0x8a, 0x38,
|
|
0x6a, 0x15, 0x8a, 0x50, 0x21, 0xd4, 0x0a, 0xad,
|
|
0x3a, 0x98, 0x5c, 0xfa, 0x07, 0x4d, 0x1a, 0x92,
|
|
0x14, 0x17, 0x47, 0xc1, 0xb5, 0xe0, 0xe0, 0xcf,
|
|
0x62, 0xd5, 0xc1, 0xc5, 0x59, 0x57, 0x07, 0x57,
|
|
0x41, 0x10, 0xfc, 0x01, 0x71, 0x72, 0x74, 0x52,
|
|
0x74, 0x91, 0x12, 0xbf, 0x4b, 0x0a, 0x2d, 0x62,
|
|
0xbc, 0xe3, 0xb8, 0x87, 0xf7, 0xbe, 0xf7, 0xe5,
|
|
0xee, 0x3b, 0x40, 0xa8, 0x97, 0x99, 0x66, 0x75,
|
|
0x8c, 0x03, 0x9a, 0x6e, 0x9b, 0xa9, 0x44, 0x5c,
|
|
0xcc, 0x64, 0x57, 0xc5, 0xd0, 0x2b, 0xba, 0x68,
|
|
0x86, 0x31, 0x8c, 0x2e, 0x99, 0x59, 0xc6, 0x9c,
|
|
0x24, 0x25, 0xe1, 0x3b, 0xbe, 0xee, 0x11, 0xe0,
|
|
0xfb, 0x5d, 0x8c, 0x67, 0xf9, 0xd7, 0xfd, 0x39,
|
|
0x7a, 0xd5, 0x9c, 0xc5, 0x80, 0x80, 0x48, 0x3c,
|
|
0xcb, 0x0c, 0xd3, 0x26, 0xde, 0x20, 0x9e, 0xde,
|
|
0xb4, 0x0d, 0xce, 0xfb, 0xc4, 0x11, 0x56, 0x94,
|
|
0x55, 0xe2, 0x73, 0xe2, 0x31, 0x93, 0x2e, 0x48,
|
|
0xfc, 0xc8, 0x75, 0xc5, 0xe3, 0x37, 0xce, 0x05,
|
|
0x97, 0x05, 0x9e, 0x19, 0x31, 0xd3, 0xa9, 0x79,
|
|
0xe2, 0x08, 0xb1, 0x58, 0x68, 0x63, 0xa5, 0x8d,
|
|
0x59, 0xd1, 0xd4, 0x88, 0xa7, 0x88, 0xa3, 0xaa,
|
|
0xa6, 0x53, 0xbe, 0x90, 0xf1, 0x58, 0xe5, 0xbc,
|
|
0xc5, 0x59, 0x2b, 0x57, 0x59, 0xf3, 0x9e, 0xfc,
|
|
0x85, 0xe1, 0x9c, 0xbe, 0xb2, 0xcc, 0x75, 0x5a,
|
|
0x43, 0x48, 0x60, 0x11, 0x4b, 0x90, 0x20, 0x42,
|
|
0x41, 0x15, 0x25, 0x94, 0x61, 0x23, 0x46, 0xbb,
|
|
0x4e, 0x8a, 0x85, 0x14, 0x9d, 0xc7, 0x7d, 0xfc,
|
|
0x83, 0xae, 0x5f, 0x22, 0x97, 0x42, 0xae, 0x12,
|
|
0x18, 0x39, 0x16, 0x50, 0x81, 0x06, 0xd9, 0xf5,
|
|
0x83, 0xff, 0xc1, 0xef, 0xde, 0x5a, 0xf9, 0xc9,
|
|
0x09, 0x2f, 0x29, 0x1c, 0x07, 0x3a, 0x5f, 0x1c,
|
|
0xe7, 0x63, 0x04, 0x08, 0xed, 0x02, 0x8d, 0x9a,
|
|
0xe3, 0x7c, 0x1f, 0x3b, 0x4e, 0xe3, 0x04, 0x08,
|
|
0x3e, 0x03, 0x57, 0x7a, 0xcb, 0x5f, 0xa9, 0x03,
|
|
0x33, 0x9f, 0xa4, 0xd7, 0x5a, 0x5a, 0xf4, 0x08,
|
|
0xe8, 0xdb, 0x06, 0x2e, 0xae, 0x5b, 0x9a, 0xb2,
|
|
0x07, 0x5c, 0xee, 0x00, 0x03, 0x4f, 0x86, 0x6c,
|
|
0xca, 0xae, 0x14, 0xa4, 0x25, 0xe4, 0xf3, 0xc0,
|
|
0xfb, 0x19, 0x7d, 0x53, 0x16, 0xe8, 0xbf, 0x05,
|
|
0x7a, 0xd6, 0xbc, 0xbe, 0x35, 0xcf, 0x71, 0xfa,
|
|
0x00, 0xa4, 0xa9, 0x57, 0xc9, 0x1b, 0xe0, 0xe0,
|
|
0x10, 0x18, 0x2d, 0x50, 0xf6, 0xba, 0xcf, 0xbb,
|
|
0xbb, 0xdb, 0xfb, 0xf6, 0x6f, 0x4d, 0xb3, 0x7f,
|
|
0x3f, 0x0a, 0x27, 0x72, 0x7d, 0x49, 0x29, 0x8b,
|
|
0xbb, 0x00, 0x00, 0x00, 0x09, 0x70, 0x48, 0x59,
|
|
0x73, 0x00, 0x00, 0x2e, 0x23, 0x00, 0x00, 0x2e,
|
|
0x23, 0x01, 0x78, 0xa5, 0x3f, 0x76, 0x00, 0x00,
|
|
0x00, 0x07, 0x74, 0x49, 0x4d, 0x45, 0x07, 0xe4,
|
|
0x06, 0x06, 0x0c, 0x23, 0x1d, 0x3f, 0x9f, 0xbb,
|
|
0x94, 0x00, 0x00, 0x00, 0x19, 0x74, 0x45, 0x58,
|
|
0x74, 0x43, 0x6f, 0x6d, 0x6d, 0x65, 0x6e, 0x74,
|
|
0x00, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x64,
|
|
0x20, 0x77, 0x69, 0x74, 0x68, 0x20, 0x47, 0x49,
|
|
0x4d, 0x50, 0x57, 0x81, 0x0e, 0x17, 0x00, 0x00,
|
|
0x00, 0x1e, 0x49, 0x44, 0x41, 0x54, 0x08, 0xd7,
|
|
0x65, 0xc9, 0xb1, 0x0d, 0x00, 0x00, 0x08, 0x03,
|
|
0x20, 0xea, 0xff, 0x3f, 0xd7, 0xd5, 0x44, 0x56,
|
|
0x52, 0x90, 0xc2, 0x38, 0xa2, 0xd0, 0xbc, 0x59,
|
|
0x8a, 0x9f, 0x04, 0x05, 0x6b, 0x38, 0x7b, 0xb2,
|
|
0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4e, 0x44,
|
|
0xae, 0x42, 0x60, 0x82,
|
|
];
|
|
|
|
let decodeDone = testDecodeRect(decoder, 0, 0, 4, 4, data, display, 24);
|
|
expect(decodeDone).to.be.true;
|
|
|
|
let targetData = new Uint8Array([
|
|
0xff, 0x00, 0x00, 255, 0xff, 0x00, 0x00, 255, 0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255,
|
|
0xff, 0x00, 0x00, 255, 0xff, 0x00, 0x00, 255, 0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255,
|
|
0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255, 0xff, 0x00, 0x00, 255, 0xff, 0x00, 0x00, 255,
|
|
0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255, 0xff, 0x00, 0x00, 255, 0xff, 0x00, 0x00, 255
|
|
]);
|
|
|
|
// Firefox currently has some very odd rounding bug:
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=1667747
|
|
function almost(a, b) {
|
|
let diff = Math.abs(a - b);
|
|
return diff < 30;
|
|
}
|
|
|
|
display.onflush = () => {
|
|
expect(display).to.have.displayed(targetData, almost);
|
|
done();
|
|
};
|
|
display.flush();
|
|
});
|
|
});
|