@johngw/stream/test/sources/immediatelyClosingReadableStream.test.ts

Reactive programming tools using the WHATWG Streams API.

import { immediatelyClosingReadableStream } from '@johngw/stream/sources/immediatelyClosingReadableStream'

test('it closes the stream immediately', async () => {
  const fn = jest.fn()
  await immediatelyClosingReadableStream().pipeTo(
    new WritableStream({ write: fn })
  )
  expect(fn).not.toHaveBeenCalled()
})