serverless/test/unit/lib/classes/yaml-parser.test.js

'use strict'

/**
 * Test: YamlParser Function Class
 */

const chai = require('chai')
const yaml = require('js-yaml')
const path = require('path')
const Serverless = require('../../../../lib/serverless')
const { getTmpFilePath, getTmpDirPath } = require('../../../utils/fs')

// Configure chai
chai.use(require('chai-as-promised'))
const expect = require('chai').expect

const serverless = new Serverless({ commands: [], options: {} })

describe('YamlParser', () => {
  describe('#parse()', () => {
    it('should parse a simple .yaml file', () => {
      const tmpFilePath = getTmpFilePath('simple.yaml')

      serverless.utils.writeFileSync(tmpFilePath, yaml.dump({ foo: 'bar' }))

      return expect(serverless.yamlParser.parse(tmpFilePath))
        .to.eventually.have.property('foo')
        .to.equal('bar')
    })

    it('should parse a simple .yml file', () => {
      const tmpFilePath = getTmpFilePath('simple.yml')

      serverless.utils.writeFileSync(tmpFilePath, yaml.dump({ foo: 'bar' }))

      return expect(serverless.yamlParser.parse(tmpFilePath))
        .to.eventually.have.property('foo')
        .to.equal('bar')
    })

    it('should parse a .yml file with JSON-REF to YAML', () => {
      const tmpDirPath = getTmpDirPath()

      serverless.utils.writeFileSync(path.join(tmpDirPath, 'ref.yml'), {
        foo: 'bar',
      })

      const testYml = {
        main: {
          $ref: './ref.yml',
        },
      }

      serverless.utils.writeFileSync(path.join(tmpDirPath, 'test.yml'), testYml)

      return expect(
        serverless.yamlParser.parse(path.join(tmpDirPath, 'test.yml')),
      )
        .to.eventually.have.nested.property('main.foo')
        .to.equal('bar')
    })

    it('should parse a .yml file with JSON-REF to JSON', () => {
      const tmpDirPath = getTmpDirPath()

      serverless.utils.writeFileSync(path.join(tmpDirPath, 'ref.json'), {
        foo: 'bar',
      })

      const testYml = {
        main: {
          $ref: './ref.json',
        },
      }

      serverless.utils.writeFileSync(path.join(tmpDirPath, 'test.yml'), testYml)

      return expect(
        serverless.yamlParser.parse(path.join(tmpDirPath, 'test.yml')),
      )
        .to.eventually.have.nested.property('main.foo')
        .to.equal('bar')
    })

    it('should parse a .yml file with recursive JSON-REF', () => {
      const tmpDirPath = getTmpDirPath()

      serverless.utils.writeFileSync(path.join(tmpDirPath, 'three.yml'), {
        foo: 'bar',
      })

      const twoYml = {
        two: {
          $ref: './three.yml',
        },
      }

      serverless.utils.writeFileSync(path.join(tmpDirPath, 'two.yml'), twoYml)

      const oneYml = {
        one: {
          $ref: './two.yml',
        },
      }

      serverless.utils.writeFileSync(path.join(tmpDirPath, 'one.yml'), oneYml)

      return expect(
        serverless.yamlParser.parse(path.join(tmpDirPath, 'one.yml')),
      )
        .to.eventually.have.nested.property('one.two.foo')
        .to.equal('bar')
    })
  })
})