first commit

tests/unit/design/theme.test.ts

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+import { theme } from 'antd'
+import { describe, expect, it } from 'vitest'
+import { getInitialTheme, setTheme, themes } from '../../../src/design/theme'
+
+describe('theme registry', () => {
+  it('uses Ant Design dark rendering for the blue scheme', () => {
+    expect(themes.blue.algorithm).toBe(theme.darkAlgorithm)
+  })
+
+  it('registers the blue and light visual schemes', () => {
+    expect(Object.keys(themes)).toEqual(['blue', 'light'])
+  })
+
+  it('persists a valid theme and ignores invalid stored values', () => {
+    setTheme('light')
+    expect(document.documentElement.dataset.theme).toBe('light')
+    expect(getInitialTheme()).toBe('light')
+    localStorage.setItem('safety-theme', 'unknown')
+    expect(getInitialTheme()).toBe('blue')
+  })
+})