test(web/m7-362): tokens-to-css generator unit test

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-03 13:52:13 -04:00
parent e40fa0d252
commit 0f83b2d6ae
2 changed files with 44 additions and 1 deletions
@@ -0,0 +1,43 @@
+import { describe, expect, test } from 'vitest';
+import { emit } from './tokens-to-css.js';
+
+const sample = {
+  colors: {
+    dark:  { obsidian: '#000', parchment: '#FFF' },
+    light: { obsidian: '#FFF', parchment: '#000' },
+    flat:  { accent: '#4A6B5C', 'on-action': '#E8E4D8' }
+  },
+  radii: { sm: '4px' },
+  fontStacks: {
+    display: "'Fraunces', serif",
+    body:    "'Inter', sans-serif",
+    mono:    "'JetBrains Mono', monospace"
+  }
+};
+
+describe('tokens-to-css emit()', () => {
+  test('emits :root block with dark and flat tokens', () => {
+    const css = emit(sample);
+    expect(css).toMatch(/:root \{[\s\S]*--fs-obsidian: #000;[\s\S]*--fs-parchment: #FFF;[\s\S]*--fs-accent: #4A6B5C;[\s\S]*--fs-on-action: #E8E4D8;[\s\S]*\}/);
+  });
+
+  test('emits [data-theme="light"] block with light tokens only', () => {
+    const css = emit(sample);
+    expect(css).toMatch(/\[data-theme="light"\] \{[\s\S]*--fs-obsidian: #FFF;[\s\S]*--fs-parchment: #000;[\s\S]*\}/);
+  });
+
+  test('flat tokens are not duplicated into the light block', () => {
+    const css = emit(sample);
+    const match = css.match(/\[data-theme="light"\] \{([\s\S]*?)\}/);
+    expect(match).not.toBeNull();
+    const lightBlock = match[1];
+    expect(lightBlock).not.toContain('--fs-accent');
+    expect(lightBlock).not.toContain('--fs-on-action');
+  });
+
+  test('preserves radii and font stacks in :root', () => {
+    const css = emit(sample);
+    expect(css).toContain('--fs-radius-sm: 4px;');
+    expect(css).toContain("--fs-font-display: 'Fraunces', serif;");
+  });
+});