chore: update to prettier@2 (#9692)

Author: SimenB

.circleci/config.yml

@@ -24,6 +24,8 @@ jobs:
       - image: circleci/node:8
     steps:
       - checkout
+      - run:
+          command: yarn remove-prettier-dep
       - restore-cache: *restore-cache
       - run: *install
       - save-cache: *save-cache

.github/workflows/nodejs.yml

@@ -80,6 +80,9 @@ jobs:
         uses: actions/setup-node@v1
         with:
           node-version: ${{ matrix.node-version }}
+      - name: remove prettier dep
+        run: yarn remove-prettier-dep
+        if: matrix.node-version == '8.17.0'
       - name: install
         run: yarn install-no-ts-build
       - name: run tests

docs/Configuration.md

@@ -429,7 +429,7 @@ module.exports = async () => {
 
 ```js
 // teardown.js
-module.exports = async function() {
+module.exports = async function () {
   await global.__MONGOD__.stop();
 };
 ```

docs/Es6ClassMocks.md

@@ -221,7 +221,7 @@ In order to mock a constructor function, the module factory must return a constr
 
 ```javascript
 jest.mock('./sound-player', () => {
-  return function() {
+  return function () {
     return {playSoundFile: () => {}};
   };
 });

docs/MockFunctionAPI.md

@@ -202,7 +202,7 @@ Expected mock function "mockedFunction" to have been called, but it was not call
 Syntactic sugar function for:
 
 ```js
-jest.fn(function() {
+jest.fn(function () {
   return this;
 });
 ```

docs/MockFunctions.md

@@ -86,10 +86,7 @@ const myMock = jest.fn();
 console.log(myMock());
 // > undefined
 
-myMock
-  .mockReturnValueOnce(10)
-  .mockReturnValueOnce('x')
-  .mockReturnValue(true);
+myMock.mockReturnValueOnce(10).mockReturnValueOnce('x').mockReturnValue(true);
 
 console.log(myMock(), myMock(), myMock(), myMock());
 // > 10, 'x', true, true
@@ -169,7 +166,7 @@ The `mockImplementation` method is useful when you need to define the default im
 
 ```js
 // foo.js
-module.exports = function() {
+module.exports = function () {
   // some implementation;
 };
 
@@ -220,7 +217,7 @@ const myObj = {
 // is the same as
 
 const otherObj = {
-  myMethod: jest.fn(function() {
+  myMethod: jest.fn(function () {
     return this;
   }),
 };

docs/Puppeteer.md

@@ -63,7 +63,7 @@ const os = require('os');
 
 const DIR = path.join(os.tmpdir(), 'jest_puppeteer_global_setup');
 
-module.exports = async function() {
+module.exports = async function () {
   const browser = await puppeteer.launch();
   // store the browser instance so we can teardown it later
   // this global is only available in the teardown but not in TestEnvironments
@@ -127,7 +127,7 @@ const rimraf = require('rimraf');
 const path = require('path');
 
 const DIR = path.join(os.tmpdir(), 'jest_puppeteer_global_setup');
-module.exports = async function() {
+module.exports = async function () {
   // close the browser instance
   await global.__BROWSER_GLOBAL__.close();
 

e2e/MockStdinWatchPlugin.js

@@ -12,7 +12,7 @@ class MockStdinWatchPlugin {
   constructor({stdin, config}) {
     this._stdin = stdin;
     if (typeof this._stdin.setRawMode !== 'function') {
-      this._stdin.setRawMode = function() {};
+      this._stdin.setRawMode = function () {};
     }
     this._config = config;
   }

e2e/__tests__/environmentAfterTeardown.test.ts

@@ -10,10 +10,7 @@ import runJest from '../runJest';
 
 test('prints useful error for environment methods after test is done', () => {
   const {stderr} = runJest('environment-after-teardown');
-  const interestingLines = stderr
-    .split('\n')
-    .slice(9, 18)
-    .join('\n');
+  const interestingLines = stderr.split('\n').slice(9, 18).join('\n');
 
   expect(wrap(interestingLines)).toMatchSnapshot();
   expect(stderr.split('\n')[9]).toBe(

e2e/__tests__/listTests.test.ts

@@ -24,12 +24,7 @@ describe('--listTests flag', () => {
 
     expect(exitCode).toBe(0);
     expect(
-      wrap(
-        normalizePaths(stdout)
-          .split('\n')
-          .sort()
-          .join('\n'),
-      ),
+      wrap(normalizePaths(stdout).split('\n').sort().join('\n')),
     ).toMatchSnapshot();
   });
 
@@ -39,13 +34,7 @@ describe('--listTests flag', () => {
     expect(exitCode).toBe(0);
     expect(() => JSON.parse(stdout)).not.toThrow();
     expect(
-      wrap(
-        JSON.stringify(
-          JSON.parse(stdout)
-            .map(normalizePaths)
-            .sort(),
-        ),
-      ),
+      wrap(JSON.stringify(JSON.parse(stdout).map(normalizePaths).sort())),
     ).toMatchSnapshot();
   });
 });