Testing

test1.js

import * as sut from './index1'
import * as sinon from 'sinon'
import { expect } from 'chai'

describe('_saveAndProcessPayload', () => {
  it('will return a formatted API payload', () => {
    const mockPayload = [
      { name: 'name1', value: 'value1' },
      { name: 'name2', value: 'value2' },
    ]
    const apiStub = { save: sinon.stub().returns(mockPayload) }

    const result = sut._saveAndProcessReturn(apiStub, 'testPayload')

    const expected = [
      { name1: 'value1' },
      { name2: 'value2' }
    ]

    expect(result).to.deep.equal(expected)
  })
})