import { describe, expect, it } from 'vitest'
import { render, screen } from '@testing-library/react'
import { axe } from 'vitest-axe'
import { Stack } from './Stack'

HTMLCanvasElement.prototype.getContext = (() => ({ measureText: () => ({ width: 0 }) })) as unknown as typeof HTMLCanvasElement.prototype.getContext

describe('Stack', () => {
  it('renders children in order', () => {
    render(
      <Stack data-testid="stack">
        <span>Alpha</span>
        <span>Beta</span>
      </Stack>,
    )
    expect(screen.getByText('Alpha')).toBeTruthy()
    expect(screen.getByText('Beta')).toBeTruthy()
  })

  it('applies the gap token var and min-width overflow guard', () => {
    render(<Stack data-testid="stack" gap="6">Body</Stack>)
    const stack = screen.getByTestId('stack')
    expect(stack.style.getPropertyValue('--stack-gap')).toBe('var(--mod-space-6)')
    expect(stack.style.gap).toBe('var(--stack-gap)')
    expect(stack.style.minWidth).toBe('0px')
  })

  it('stays axe-clean', async () => {
    const { container } = render(<Stack><span>Item</span></Stack>)
    await expect(axe(container)).resolves.toHaveNoViolations()
  })
})