/**
 * Ensures /bin/clear stays aligned with bare-os-booter terminal-escapes.js
 * (kernel scripts cannot import the booter module).
 */
import test from 'node:test'
import assert from 'node:assert/strict'
import { readFile } from 'node:fs/promises'
import { dirname, join } from 'node:path'
import { fileURLToPath } from 'node:url'

const __dirname = dirname(fileURLToPath(import.meta.url))
/** Source must use hex escapes (not raw ESC bytes) so the file stays printable UTF-8 */
const expectedSourceLiteral =
  "const seq = '\\x1b[H\\x1b[3J\\x1b[2J\\x1b[0m'"

test('clear.js uses xterm scrollback + viewport clear sequence', async () => {
  const src = await readFile(join(__dirname, '../src/clear.js'), 'utf8')
  assert.ok(
    src.includes(expectedSourceLiteral),
    'clear.js must use the canonical xterm clear sequence (sync with bare-os-booter terminal-escapes.js)'
  )
})