Lu Yifei
d5ebe6cb47
Build offline specialized players from the matching Scratch VM, with audited linking, pruning and scheduling-property renaming across browser, Node and standalone outputs.
53 lines
3.0 KiB
JavaScript
53 lines
3.0 KiB
JavaScript
import {test} from 'node:test';
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import assert from 'node:assert/strict';
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import {createRequire} from 'node:module';
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import {fixtureProject} from './specialized-fixtures.mjs';
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import {installForTest} from './specialized-differential.mjs';
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const require = createRequire(new URL('../../scratch-vm/package.json', import.meta.url));
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const VM = require('./src/virtual-machine');
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const FakeRenderer = require('./test/fixtures/fake-renderer');
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const {lower} = require('./src/compiler/continuation');
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test('movement, effects and pen renderer operations match JS AOT', async () => {
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const previousDocument = globalThis.document;
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globalThis.document = {hidden: false};
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const project = fixtureProject();
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project.monitors = []; project.extensions = ['pen']; project.targets[0].blocks = {};
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const sprite = structuredClone(project.targets[0]);
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Object.assign(sprite, {isStage: false, name: 'Sprite', variables: {}, x: 0, y: 0, direction: 90,
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size: 100, visible: true, draggable: false, rotationStyle: 'all around', layerOrder: 1});
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project.targets.push(sprite);
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const block = (opcode, parent, next, inputs = {}, fields = {}) => ({opcode, parent, next, inputs, fields, topLevel: !parent});
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sprite.blocks = {
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hat: block('event_whenflagclicked', null, 'clear'),
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clear: block('pen_clear', 'hat', 'down'),
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down: block('pen_penDown', 'clear', 'repeat'),
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repeat: block('control_repeat', 'down', 'up', {TIMES: [1, [4, '10']], SUBSTACK: [2, 'move']}),
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move: block('motion_changexby', 'repeat', 'effect', {DX: [1, [4, '2']]}),
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effect: block('looks_changeeffectby', 'move', null, {CHANGE: [1, [4, '5']]}, {EFFECT: ['ghost', null]}),
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up: block('pen_penUp', 'repeat', null)
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};
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const run = async specialized => {
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const vm = new VM(), renderer = new FakeRenderer(), trace = [];
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for (const name of ['createPenSkin', 'penClear', 'penLine', 'penPoint', 'penStamp', 'destroySkin', 'destroyDrawable', 'draw']) renderer[name] = () => 1;
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renderer.getNativeSize = () => [480, 360];
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for (const name of ['updateDrawablePosition', 'updateDrawableEffect', 'penClear', 'penLine', 'penPoint', 'penStamp']) {
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const original = renderer[name];
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renderer[name] = (...args) => { trace.push([name, JSON.parse(JSON.stringify(args))]); return original.apply(renderer, args); };
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}
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try {
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vm.attachRenderer(renderer); vm.setCompilerOptions({enabled: true});
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await vm.loadProject(JSON.stringify(project));
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if (specialized) installForTest(vm, lower(vm.exportSpecializedProjectBuildInput(), 51));
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trace.length = 0; vm.greenFlag();
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for (let tick = 0; tick < 50 && vm.runtime.threads.length; tick++) vm.runtime._step();
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assert(!vm.runtime.threads.length);
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return trace;
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} finally { vm.quit(); }
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};
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const expected = await run(false), actual = await run(true);
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assert(expected.some(([method]) => method === 'penLine'));
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assert.deepEqual(actual, expected);
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if (previousDocument === undefined) delete globalThis.document; else globalThis.document = previousDocument;
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});
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