Initial commit of 001code-html Scratch frontend project.

Includes scratch-gui, scratch-vm, scratch-blocks, scratch-render, scratch-l10n, and deployment config.

Co-authored-by: Cursor <cursoragent@cursor.com>

scratch-vm/test/unit/serialization_sb2.js

@@ -0,0 +1,104 @@
+const path = require('path');
+const test = require('tap').test;
+const extractProjectJson = require('../fixtures/readProjectFile').extractProjectJson;
+
+const RenderedTarget = require('../../src/sprites/rendered-target');
+const Runtime = require('../../src/engine/runtime');
+const sb2 = require('../../src/serialization/sb2');
+
+test('spec', t => {
+    t.type(sb2, 'object');
+    t.type(sb2.deserialize, 'function');
+    t.end();
+});
+
+test('default', t => {
+    // Get SB2 JSON (string)
+    const uri = path.resolve(__dirname, '../fixtures/default.sb2');
+    const json = extractProjectJson(uri);
+
+    // Create runtime instance & load SB2 into it
+    const rt = new Runtime();
+    sb2.deserialize(json, rt).then(({targets}) => {
+        // Test
+        t.type(json, 'object');
+        t.type(rt, 'object');
+        t.type(targets, 'object');
+
+        t.ok(targets[0] instanceof RenderedTarget);
+        t.type(targets[0].id, 'string');
+        t.type(targets[0].blocks, 'object');
+        t.type(targets[0].variables, 'object');
+        t.type(targets[0].comments, 'object');
+
+        t.equal(targets[0].isOriginal, true);
+        t.equal(targets[0].currentCostume, 0);
+        t.equal(targets[0].isOriginal, true);
+        t.equal(targets[0].isStage, true);
+
+        t.ok(targets[1] instanceof RenderedTarget);
+        t.type(targets[1].id, 'string');
+        t.type(targets[1].blocks, 'object');
+        t.type(targets[1].variables, 'object');
+        t.type(targets[1].comments, 'object');
+
+        t.equal(targets[1].isOriginal, true);
+        t.equal(targets[1].currentCostume, 0);
+        t.equal(targets[1].isOriginal, true);
+        t.equal(targets[1].isStage, false);
+        t.end();
+    });
+});
+
+test('data scoping', t => {
+    // Get SB2 JSON (string)
+    const uri = path.resolve(__dirname, '../fixtures/data.sb2');
+    const json = extractProjectJson(uri);
+
+    // Create runtime instance & load SB2 into it
+    const rt = new Runtime();
+    sb2.deserialize(json, rt).then(({targets}) => {
+        const globalVariableIds = Object.keys(targets[0].variables);
+        const localVariableIds = Object.keys(targets[1].variables);
+        t.equal(targets[0].variables[globalVariableIds[0]].name, 'foo');
+        t.equal(targets[1].variables[localVariableIds[0]].name, 'local');
+        t.end();
+    });
+});
+
+test('whenclicked blocks imported separately', t => {
+    // This sb2 fixture has a single "whenClicked" block on both sprite and stage
+    const uri = path.resolve(__dirname, '../fixtures/when-clicked.sb2');
+    const json = extractProjectJson(uri);
+
+    // Create runtime instance & load SB2 into it
+    const rt = new Runtime();
+    sb2.deserialize(json, rt).then(({targets}) => {
+        const stage = targets[0];
+        t.equal(stage.isStage, true); // Make sure we have the correct target
+        const stageOpcode = stage.blocks.getBlock(stage.blocks.getScripts()[0]).opcode;
+        t.equal(stageOpcode, 'event_whenstageclicked');
+
+        const sprite = targets[1];
+        t.equal(sprite.isStage, false); // Make sure we have the correct target
+        const spriteOpcode = sprite.blocks.getBlock(sprite.blocks.getScripts()[0]).opcode;
+        t.equal(spriteOpcode, 'event_whenthisspriteclicked');
+
+        t.end();
+    });
+});
+
+test('Ordering', t => {
+    // This SB2 has 3 sprites that have been reordered in scratch 2
+    // so the order in the file is not the order specified by the indexInLibrary property.
+    const uri = path.resolve(__dirname, '../fixtures/ordering.sb2');
+    const json = extractProjectJson(uri);
+    const rt = new Runtime();
+    sb2.deserialize(json, rt).then(({targets}) => {
+        // Would fail with any other ordering.
+        t.equal(targets[1].sprite.name, 'First');
+        t.equal(targets[2].sprite.name, 'Second');
+        t.equal(targets[3].sprite.name, 'Third');
+        t.end();
+    });
+});