scraper/test/trim.test.js

const filter = require('../src/filter/trim')
const assert = require('assert')

describe('Check "trim"', () => {
  it('Should return ""', () => {
    assert.equal(filter(""), "")
  })

  it('Should return ""', () => {
    assert.equal(filter(" "), "")
  })

  it('Should return "foo"', () => {
    assert.equal(filter(" foo "), "foo")
  })

  it('Should return "foo bar"', () => {
    assert.equal(filter(" foo bar \n"), "foo bar")
  })
});