github-comment-manager/test/comments.js

import { expect } from 'chai'
import sinon from 'sinon'

import sample from './sample'
import Builds from '../src/builds'
import Comments from '../src/comments'

let comments, client, builds

/* expected comment based on given builds */
const COMMENT = `
### Jenkins Builds
| :grey_question: | Commit | :hash: | Finished (UTC) | Duration | Platform | Result |
|-|-|-|-|-|-|-|
| :heavy_check_mark: | COMMIT-1 | [ID-1](URL-1) | 2018-12-20 08:26:33 | DURATION-1 | \`PLATFORM-1\` | [:package: package](PKG_URL-1) |
| | | | | | | |
| :x: | COMMIT-2 | [ID-2](URL-2) | 2018-12-20 08:45:28 | DURATION-2 | \`PLATFORM-2\` | [:page_facing_up: build log](URL-2consoleText) |
`

describe('Comments', () => {
  beforeEach(() => {
    client = {
      issues: {
        createComment: sinon.stub().returns({ data: { id: 'ISSUE-ID' }}),
        updateComment: sinon.stub().returns({ data: { id: 'ISSUE-ID' }}),
      },
    }
    builds = sinon.createStubInstance(Builds, {
      getBuilds: sample.BUILDS,
    })
    comments = new Comments(client, 'owner', 'repo', builds)
  })
  
  describe('renderComment', () => {
    it('should fail with no builds', async () => {
      builds.getBuilds.returns([])
      expect(comments.renderComment('PR-ID')).rejectedWith('No builds exist for this PR')
    })

    it('should render correctly', async () => {
      let body = await comments.renderComment('PR-ID')
      expect(body).to.eq(COMMENT)
    })
  })

  describe('postComment', () => {
    it('should create a new comment', async () => {
      let id = await comments.postComment('PR-ID')
      expect(id).to.eq('ISSUE-ID')
      expect(client.issues.createComment).calledOnceWith({
        body: sinon.match.any,
        number: 'PR-ID',
        owner: 'owner',
        repo: 'repo',
      })
    })
  })

  describe('updateComment', () => {
    it('should update existing comment', async () => {
      let id = await comments.updateComment('PR-ID', 'COMMENT-ID')
      expect(id).to.eq('ISSUE-ID')
      expect(client.issues.updateComment).calledOnceWith({
        body: sinon.match.any,
        comment_id: 'COMMENT-ID',
        owner: 'owner',
        repo: 'repo',
      })
    })
  })
})