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/extension_text_to_speech.js

@@ -0,0 +1,44 @@
+const test = require('tap').test;
+const TextToSpeech = require('../../src/extensions/scratch3_text2speech/index.js');
+
+const fakeStage = {
+    textToSpeechLanguage: null
+};
+
+const fakeRuntime = {
+    getTargetForStage: () => fakeStage,
+    on: () => {} // Stub out listener methods used in constructor.
+};
+
+const ext = new TextToSpeech(fakeRuntime);
+
+test('if no language is saved in the project, use default', t => {
+    t.strictEqual(ext.getCurrentLanguage(), 'en');
+    t.end();
+});
+
+test('if an unsupported language is dropped onto the set language block, use default', t => {
+    ext.setLanguage({LANGUAGE: 'nope'});
+    t.strictEqual(ext.getCurrentLanguage(), 'en');
+    t.end();
+});
+
+test('if a supported language name is dropped onto the set language block, use it', t => {
+    ext.setLanguage({LANGUAGE: 'español'});
+    t.strictEqual(ext.getCurrentLanguage(), 'es');
+    t.end();
+});
+
+test('get the extension locale for a supported locale that differs', t => {
+    ext.setLanguage({LANGUAGE: 'ja-hira'});
+    t.strictEqual(ext.getCurrentLanguage(), 'ja');
+    t.end();
+});
+
+test('use localized spoken language name in place of localized written language name', t => {
+    ext.getEditorLanguage = () => 'es';
+    const languageMenu = ext.getLanguageMenu();
+    const localizedNameForChineseInSpanish = languageMenu.find(el => el.value === 'zh-cn').text;
+    t.strictEqual(localizedNameForChineseInSpanish, 'Chino (Mandarín)'); // i.e. should not be 'Chino (simplificado)'
+    t.end();
+});