epam/miew

import chai, { expect } from 'chai'
import dirtyChai from 'dirty-chai'
import GROReader from './GROReader'

chai.use(dirtyChai)

const sourceLines = ['the 1st line contains 42 and -12.75', '']

const source = sourceLines.join('\n')

describe('GROReader', () => {
  let stream = null

  beforeEach(() => {
    stream = new GROReader(source)
  })

  describe('.getNext()', () => {
    it('returns exact end position of line', () => {
      expect(stream.getNext()).to.equal(35)
    })

    it('returns zero number for empty line', () => {
      const emptyStream = new GROReader('')
      expect(emptyStream.getNext()).to.equal(0)
    })
  })
})