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https://github.com/scratchfoundation/scratch-vm.git
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840ffb5df0
Newer versions of `tap` run more asynchronously, so sometimes using `process.nextTick(process.exit)` to end a test would prevent the test from completing correctly. Removing all instances of `process.nextTick(process.exit)` put tests into three categories: * the test still worked correctly -- no fixup needed. * the test would hang because the VM's `_steppingInterval` was keeping Node alive. These tests call a new `quit()` method which ends the stepping interval. * the `load-extensions` test needed special attention because the "Video Sensing" extension starts its own loop using `setTimeout`. I added a `_stopLoop()` method on the extension and directly call that from the test. I'm not completely happy with this solution but anything more general would likely require a change to the extension spec, so I'm leaving that as a followup task.
119 lines
4.1 KiB
JavaScript
119 lines
4.1 KiB
JavaScript
/**
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* This test mocks breaking on loading a corrupted sound.
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* The VM should handle this safely by replacing the sound data with the default (empty) sound,
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* but keeping track of the original sound data and serializing the
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* original sound data back out. The saved project.json should not
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* reflect that the sound is broken and should therefore re-attempt
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* to load the sound if the saved project is re-loaded.
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*/
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const path = require('path');
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const tap = require('tap');
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const md5 = require('js-md5');
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const makeTestStorage = require('../fixtures/make-test-storage');
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const {extractAsset, readFileToBuffer} = require('../fixtures/readProjectFile');
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const VirtualMachine = require('../../src/index');
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const {serializeSounds} = require('../../src/serialization/serialize-assets');
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const projectUri = path.resolve(__dirname, '../fixtures/corrupt_sound.sb3');
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const project = readFileToBuffer(projectUri);
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const soundFileName = '78618aadd225b1db7bf837fa17dc0568.wav';
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const originalSound = extractAsset(projectUri, soundFileName);
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// We need to get the actual md5 because we hand modified the sound file to corrupt it
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// after we downloaded the project from Scratch
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// Loading the project back into the VM will correct the assetId and md5
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const brokenSoundMd5 = md5(originalSound);
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let fakeId = -1;
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const FakeAudioEngine = function () {
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return {
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decodeSoundPlayer: soundData => {
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const soundDataString = soundData.asset.decodeText();
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if (soundDataString.includes('here is some')) {
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return Promise.reject(new Error('mock audio engine broke'));
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}
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// Otherwise return fake data
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return Promise.resolve({
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id: fakeId++,
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buffer: {
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sampleRate: 1,
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length: 1
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}
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});
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},
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createBank: () => null
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};
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};
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let vm;
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let defaultSoundAssetId;
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tap.beforeEach(() => {
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const storage = makeTestStorage();
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vm = new VirtualMachine();
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vm.attachStorage(storage);
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defaultSoundAssetId = vm.runtime.storage.defaultAssetId.Sound;
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vm.attachAudioEngine(FakeAudioEngine());
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return vm.loadProject(project);
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});
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const test = tap.test;
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test('load sb3 project with corrupted sound file', t => {
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t.equal(vm.runtime.targets.length, 2);
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const stage = vm.runtime.targets[0];
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t.ok(stage.isStage);
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const catSprite = vm.runtime.targets[1];
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t.equal(catSprite.getName(), 'Sprite1');
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t.equal(catSprite.getSounds().length, 1);
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const corruptedSound = catSprite.getSounds()[0];
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t.equal(corruptedSound.name, 'Boop Sound Recording');
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t.equal(corruptedSound.assetId, defaultSoundAssetId);
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t.equal(corruptedSound.dataFormat, 'wav');
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// Runtime should have info about broken asset
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t.ok(corruptedSound.broken);
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t.equal(corruptedSound.broken.assetId, brokenSoundMd5);
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// Verify that we saved the original asset data
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t.equal(md5(corruptedSound.broken.asset.data), brokenSoundMd5);
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t.end();
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});
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test('load and then save project with corrupted sound file', t => {
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const resavedProject = JSON.parse(vm.toJSON());
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t.equal(resavedProject.targets.length, 2);
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const stage = resavedProject.targets[0];
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t.ok(stage.isStage);
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const catSprite = resavedProject.targets[1];
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t.equal(catSprite.name, 'Sprite1');
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t.equal(catSprite.sounds.length, 1);
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const corruptedSound = catSprite.sounds[0];
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t.equal(corruptedSound.name, 'Boop Sound Recording');
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// Resaved project costume should have the metadata that corresponds to the original broken costume
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t.equal(corruptedSound.assetId, brokenSoundMd5);
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t.equal(corruptedSound.dataFormat, 'wav');
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// Test that we didn't save any data about the costume being broken
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t.notOk(corruptedSound.broken);
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t.end();
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});
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test('serializeSounds saves orignal broken sound', t => {
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const soundDescs = serializeSounds(vm.runtime, vm.runtime.targets[1].id);
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t.equal(soundDescs.length, 1);
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const sound = soundDescs[0];
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t.equal(sound.fileName, `${brokenSoundMd5}.wav`);
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t.equal(md5(sound.fileContent), brokenSoundMd5);
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t.end();
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});
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