// @vitest-environment node
import { readFileSync } from 'node:fs'
import { resolve } from 'node:path'
import { describe, expect, it } from 'vitest'

describe('design token contract', () => {
  it('defines semantic scales without removing compatibility aliases', () => {
    const tokens = readFileSync(resolve(process.cwd(), 'src/styles/tokens.css'), 'utf8')
    const requiredTokens = [
      '--surface-elevated',
      '--surface-interactive',
      '--text-subtle',
      '--radius-lg: 16px',
      '--radius-xl: 20px',
      '--space-5: 20px',
      '--space-7: 32px',
      '--font-size-page',
      '--font-size-body',
      '--z-popover',
      '--z-tooltip',
      '--ease-standard',
    ]

    requiredTokens.forEach(token => expect(tokens).toContain(token))
    expect(tokens).toContain('--radius-legacy-lg')
    expect(tokens).toContain(':root[data-theme="dark"]')
  })
})