| 1 | /*! |
| 2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
| 3 | * |
| 4 | * This source code is licensed under the MIT license found in the |
| 5 | * LICENSE file in the root directory of this source tree. |
| 6 | */ |
| 7 | |
| 8 | 'use strict'; |
| 9 | |
| 10 | const { |
| 11 | patchConsoleMethods, |
| 12 | resetAllUnexpectedConsoleCalls, |
| 13 | assertConsoleLogsCleared, |
| 14 | } = require('internal-test-utils/consoleMock'); |
| 15 | const spyOn = jest.spyOn; |
| 16 | |
| 17 | // Spying on console methods in production builds can mask errors. |
| 18 | // This is why we added an explicit spyOnDev() helper. |
| 19 | // It's too easy to accidentally use the more familiar spyOn() helper though, |
| 20 | // So we disable it entirely. |
| 21 | // Spying on both dev and prod will require using both spyOnDev() and spyOnProd(). |
| 22 | global.spyOn = function () { |
| 23 | throw new Error( |
| 24 | 'Do not use spyOn(). ' + |
| 25 | 'It can accidentally hide unexpected errors in production builds. ' + |
| 26 | 'Use spyOnDev(), spyOnProd(), or spyOnDevAndProd() instead.' |
| 27 | ); |
| 28 | }; |
| 29 | |
| 30 | global.spyOnDev = function (...args) { |
| 31 | if (__DEV__) { |
| 32 | return spyOn(...args); |
| 33 | } |
| 34 | }; |
| 35 | |
| 36 | global.spyOnDevAndProd = spyOn; |
| 37 | |
| 38 | global.spyOnProd = function (...args) { |
| 39 | if (!__DEV__) { |
| 40 | return spyOn(...args); |
| 41 | } |
| 42 | }; |
| 43 | |
| 44 | // Patch the console to assert that all console error/warn/log calls assert. |
| 45 | patchConsoleMethods({includeLog: !!process.env.CI}); |
| 46 | beforeEach(resetAllUnexpectedConsoleCalls); |
| 47 | afterEach(assertConsoleLogsCleared); |
| 48 | |
| 49 | // TODO: enable this check so we don't forget to reset spyOnX mocks. |
| 50 | // afterEach(() => { |
| 51 | // if ( |
| 52 | // console[methodName] !== mockMethod && |
| 53 | // !jest.isMockFunction(console[methodName]) |
| 54 | // ) { |
| 55 | // throw new Error( |
| 56 | // `Test did not tear down console.${methodName} mock properly.` |
| 57 | // ); |
| 58 | // } |
| 59 | // }); |
| 60 | |
| 61 | expect.extend({ |
| 62 | ...require('../matchers/reactTestMatchers'), |
| 63 | }); |