Test some things

test/index.test.js

@@ -2,6 +2,11 @@ const {createRobot} = require('probot')
 const app = require('..')
 const payload = require('./fixtures/check_suite.requested')
 
+// Mock out the analysis implementation for these tests
+// https://jestjs.io/docs/en/mock-functions#mock-implementations
+jest.mock('../lib/analysis.js')
+const analyzeTree = require('../lib/analysis')
+
 describe('index', () => {
   let robot
   let github
@@ -18,13 +23,25 @@ describe('index', () => {
 
     // Mock out the GitHub API
     github = {}
+    github.request = jest
+      .fn()
+      .mockResolvedValueOnce({data: {id: 42, url: "https://api.github.com/repos/foo/bar/check-runs/42"}})
+      .mockResolvedValueOnce({data: {id: 42, url: "https://api.github.com/repos/foo/bar/check-runs/42"}})
+
+    analyzeTree.mockResolvedValueOnce([])
 
     // Pass mocked out GitHub API into out robot instance
     robot.auth = () => Promise.resolve(github)
   })
 
   it('works', async () => {
     await robot.receive(event)
+
+    expect(analyzeTree).toHaveBeenCalledTimes(1)
+    expect(analyzeTree.mock.calls[0][0]).toBeDefined()
+    expect(analyzeTree.mock.calls[0][1]).toBe('wintron')
+    expect(analyzeTree.mock.calls[0][2]).toBe('example')
+    expect(analyzeTree.mock.calls[0][3]).toBe('9875bf915c118e6369a610770288cf7f0a415124')
   })
 })