import * as Timeout from './Timeout.js'

describe('duration', () => {
  test('uses a 15 second default', () => {
    expect(Timeout.duration).toBe(15_000)
  })
})

describe('signal', () => {
  test('preserves a caller signal and otherwise creates a deadline', () => {
    const caller = new AbortController().signal

    expect(Timeout.signal({ signal: caller })).toBe(caller)
    expect(Timeout.signal()).toBeInstanceOf(AbortSignal)
  })
})

describe('wait', () => {
  test('rejects with the abort reason and clears its timer', async () => {
    vi.useFakeTimers()
    try {
      const controller = new AbortController()
      const reason = new DOMException('deadline exceeded', 'TimeoutError')
      const waiting = Timeout.wait({ milliseconds: 1_000, signal: controller.signal })
      const rejection = expect(waiting).rejects.toBe(reason)

      controller.abort(reason)

      await rejection
      expect(vi.getTimerCount()).toBe(0)
    } finally {
      vi.useRealTimers()
    }
  })
})