Add features & update project

apps/next/tests/unit/workspace-languages.test.ts

@@ -0,0 +1,27 @@
+import { describe, expect, it } from 'vitest';
+
+import {
+  basename,
+  languageForPath,
+} from '../../src/components/agent-workspace/languages';
+
+describe('workspace language helpers', () => {
+  it('maps common code file extensions to Monaco languages', () => {
+    expect(languageForPath('src/app.ts')).toBe('typescript');
+    expect(languageForPath('src/app.tsx')).toBe('typescript');
+    expect(languageForPath('src/app.js')).toBe('javascript');
+    expect(languageForPath('package.json')).toBe('json');
+    expect(languageForPath('README.md')).toBe('markdown');
+    expect(languageForPath('.env.local')).toBe('plaintext');
+  });
+
+  it('lets Monaco fall back for unknown paths', () => {
+    expect(languageForPath('Gemfile')).toBeUndefined();
+    expect(languageForPath()).toBeUndefined();
+  });
+
+  it('returns a useful basename for file tabs', () => {
+    expect(basename('src/components/button.tsx')).toBe('button.tsx');
+    expect(basename('README.md')).toBe('README.md');
+  });
+});