@vudash/datasource-random/datasource.spec.js

Random Datasource for Vudash

'use strict'

const RandomTransport = require('./src/random-transport')
const { expect } = require('code')

describe('plugin', () => {
  const MT_SEED = 'a'
  const AN_EMAIL = 'urijihed@ocekode.lr'

  it('Allows method to be specified', () => {
    const transport = new RandomTransport({ method: 'email' }, MT_SEED)
    return transport.fetch().then((email) => {
      expect(email).to.equal(AN_EMAIL)
    })
  })

  it('Unknown method returns an error', () => {
    const transport = new RandomTransport({ method: 'abcdefg' }, MT_SEED)
    expect(transport.fetch.bind(transport)).to.throw(Error, /is not a known chance method/)
  })

  it('Passes options to method', () => {
    const options = { domain: 'xyz.com' }
    const transport = new RandomTransport({ method: 'email', options }, MT_SEED)
    return transport.fetch().then((email) => {
      expect(email).to.endWith(options.domain)
    })
  })

  it('If method is not defaulted, options are not defaulted', () => {
    const transport = new RandomTransport({ method: 'email' }, MT_SEED)
    return transport.fetch().then((email) => {
      expect(email).to.equal(AN_EMAIL)
    })
  })

  it('Allow multiple arguments to options', () => {
    const options = ['chance.integer', 12, { min: 15, max: 32 }]
    const transport = new RandomTransport({ method: 'n', options }, MT_SEED)
    return transport.fetch().then((numbers) => {
      expect(numbers).to.be.an.array()
      expect(numbers.length).to.equal(12)
      for (const val of numbers) {
        expect(val, val).to.be.between(14, 33)
      }
    })
  })

  it('Validate for unknown method references', () => {
    const options = ['chance.abcde']
    const transport = new RandomTransport({ method: 'n', options }, MT_SEED)
    expect(transport.fetch.bind(transport)).to.throw(Error, /is not a known chance method/)
  })

  it('Allow shorthand chance method names', () => {
    const options = ['integer', 12, { min: 0, max: 1 }]
    const transport = new RandomTransport({ method: 'n', options }, MT_SEED)
    expect(transport.fetch.bind(transport)).not.to.throw()
  })
})