test: mock update check in tests

Author: Murat Mehmet

src/__tests__/unit/cli.spec.ts

@@ -1,4 +1,5 @@
 require('../mocks/mockAll');
+const mockSpawn = jest.spyOn(require('child_process'), 'spawn');
 
 import { resolve } from 'path';
 import * as process from 'process';
@@ -11,6 +12,21 @@ describe('cli', () => {
     options.get().manual = true;
   });
   it('should exist', () => {
+    mockSpawn.mockImplementationOnce(() => ({
+      on: (_event: string, cb: (exitCode: number) => void) => {
+        cb(0);
+      },
+      stdout: {
+        on: (_event: string, cb: (...args: any[]) => void) => {
+          cb('stdout');
+        },
+      },
+      stderr: {
+        on: (_event: string, cb: (...args: any[]) => void) => {
+          cb('stderr');
+        },
+      },
+    }));
     const mock = jest.spyOn(require('../../integrate'), 'integrate');
     const cli = require(resolve(__dirname, '../../cli'));
 

src/__tests__/unit/integrate.spec.ts

@@ -4,6 +4,7 @@ const {
   writeMockAppDelegate,
   writeMockLock,
 } = require('../mocks/mockAll');
+const mockSpawn = jest.spyOn(require('child_process'), 'spawn');
 
 const mockRunTask = jest.spyOn(require('../../utils/runTask'), 'runTask');
 const mockParseConfig = jest.spyOn(
@@ -17,6 +18,23 @@ import { integrate } from '../../integrate';
 import { mockPrompter, writeMockProject } from '../mocks/mockAll';
 
 describe('integrate', () => {
+  beforeEach(() => {
+    mockSpawn.mockImplementationOnce(() => ({
+      on: (_event: string, cb: (exitCode: number) => void) => {
+        cb(0);
+      },
+      stdout: {
+        on: (_event: string, cb: (...args: any[]) => void) => {
+          cb('stdout');
+        },
+      },
+      stderr: {
+        on: (_event: string, cb: (...args: any[]) => void) => {
+          cb('stderr');
+        },
+      },
+    }));
+  });
   it('should not run tasks when lock does not exist (first run)', async () => {
     const spinner = mockPrompter.spinner();
     spinner.stop.mockReset();

src/__tests__/unit/upgrade-cli.spec.ts

@@ -28,6 +28,21 @@ describe('upgrade-cli', () => {
         },
       },
     }));
+    mockSpawn.mockImplementationOnce(() => ({
+      on: (_event: string, cb: (exitCode: number) => void) => {
+        cb(0);
+      },
+      stdout: {
+        on: (_event: string, cb: (...args: any[]) => void) => {
+          cb('stdout');
+        },
+      },
+      stderr: {
+        on: (_event: string, cb: (...args: any[]) => void) => {
+          cb('stderr');
+        },
+      },
+    }));
     const mock = jest.spyOn(require('../../upgrade'), 'upgrade');
     const cli = require(resolve(__dirname, '../../upgrade-cli'));
 

src/__tests__/unit/upgrade.spec.ts

@@ -43,6 +43,21 @@ describe('upgrade', () => {
         },
       },
     }));
+    mockSpawn.mockImplementationOnce(() => ({
+      on: (_event: string, cb: (exitCode: number) => void) => {
+        cb(0);
+      },
+      stdout: {
+        on: (_event: string, cb: (...args: any[]) => void) => {
+          cb('stdout');
+        },
+      },
+      stderr: {
+        on: (_event: string, cb: (...args: any[]) => void) => {
+          cb('stderr');
+        },
+      },
+    }));
   });
   it('should skip import when import path is empty', async () => {
     mockPrompter.text.mockImplementationOnce(() => '');