deepseek-harness/packages/experimental/webworker-runtime/tests/transport/frames.spec.ts

import { describe, expect, it } from 'vitest'
import { parseInboundFrame } from '../../src/transport/frames.ts'

describe('tunnel init frame', () => {
  it('retains the selected overlay order', () => {
    expect(parseInboundFrame({
      t: 'init',
      image: 'base.tar.gz',
      overlays: ['workspace.tar.gz', 'session.tar.gz'],
    })).toEqual({
      t: 'init',
      image: 'base.tar.gz',
      overlays: ['workspace.tar.gz', 'session.tar.gz'],
    })
  })

  it('rejects a missing or non-string overlay list', () => {
    expect(() => parseInboundFrame({ t: 'init', image: 'base.tar.gz' })).toThrow(/array of string overlay urls/)
    expect(() => parseInboundFrame({ t: 'init', image: 'base.tar.gz', overlays: [1] }))
      .toThrow(/array of string overlay urls/)
  })
})