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

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

describe('Divider', () => {
  it('renders a separator', () => {
    render(<Divider data-testid="divider" />)
    expect(screen.getByTestId('divider')).toBeTruthy()
  })

  it('applies the gap token var and min-width overflow guard', () => {
    render(<Divider data-testid="divider" gap="2" />)
    const divider = screen.getByTestId('divider')
    expect(divider.style.getPropertyValue('--divider-gap')).toBe('var(--mod-space-2)')
    expect(divider.style.marginBlock).toBe('var(--divider-gap)')
    expect(divider.style.minWidth).toBe('0px')
  })

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