@remote.it/core/src/FileWatcher.test.ts

Core remote.it JavasScript/TypeScript library

import { File } from './File'
import { FileWatcher } from './FileWatcher'
import { TempFilePath } from './TempFilePath'

describe('FileWatcher', () => {
  let file: File
  let watcher: FileWatcher

  beforeEach(() => {
    const tmpPath = new TempFilePath().toString()
    console.log('TMPPATH:', tmpPath)
    file = new File(tmpPath)
    watcher = new FileWatcher(file.location)
  })

  afterEach(() => {
    file.remove()
    watcher.stop()
  })

  test('should emit "ready" event when watcher is ready', async done => {
    watcher.on('created', () => {
      expect(file.exists).toBe(true)
      done()
    })

    file.write('foo')
  })

  test('should emit "created" event when file is created', async done => {
    watcher.on('created', () => {
      expect(file.exists).toBe(true)
      done()
    })

    file.write('foo')
  })

  test('should emit "updated" event when file is changed', async done => {
    file.write('foo')

    setTimeout(() => {
      watcher.on('updated', () => {
        expect(file.exists).toBe(true)
        expect(file.read()).toBe('bar')
        done()
      })
      file.write('bar')
    }, 200)
  })

  test('should emit "removed" event when file is deleted', async done => {
    file.write('foo')

    setTimeout(() => {
      watcher.on('removed', () => {
        expect(file.exists).toBe(false)
        done()
      })
      file.remove()
    }, 200)
  })
})