hal2dy / html-scan

src/test/helper/input.test.js

const inputHelper = require('../../helper/input')

describe('Input helper', () => {
  const spy = jest.spyOn(console, 'error').mockImplementation(() => {})

The variable jest seems to be never declared. If this is a global, consider adding a /** global: jest */ comment.

  it('input is a file path', () => {
    const mockCallback = jest.fn()

The variable jest seems to be never declared. If this is a global, consider adding a /** global: jest */ comment.

    inputHelper('src/test/sample.html', mockCallback)
    expect(mockCallback.mock.calls.length).toBe(1)
    expect(mockCallback.mock.calls[0][0]).toMatchSnapshot()
  })

  it('input is a not existed file path', () => {
    const mockCallback = jest.fn()

The variable jest seems to be never declared. If this is a global, consider adding a /** global: jest */ comment.

    inputHelper('src/test/dummy.html', mockCallback)
    expect(spy).toHaveBeenCalled()
    expect(mockCallback.mock.calls.length).toBe(0)
    expect(spy.mock.calls[0][0]).toContain('Cannot read file')
  })

  it('input is a read stream', done => {
    const Readable = require('stream').Readable
    const readable = new Readable()
    const mockCallback = jest.fn(() => {})

The variable jest seems to be never declared. If this is a global, consider adding a /** global: jest */ comment.

    readable._read = () => {}
    readable.push('streamData 1')
    readable.push('streamData 2')
    readable.push('streamData 3')
    inputHelper(readable, mockCallback)
    setTimeout(() => {
      try {
        expect(mockCallback.mock.calls[0][0]).toBe('streamData 1')
        expect(mockCallback.mock.calls[1][0]).toBe('streamData 2')
        expect(mockCallback.mock.calls[2][0]).toBe('streamData 3')
        done()
      } catch (err) {
        done.fail(err)
      }
    }, 2000)
  })

  it('input is invalid', () => {
    inputHelper(null)
    expect(spy).toHaveBeenCalled()
    expect(spy.mock.calls[1][0]).toContain('Invalid Input')
  })
})