/*! * Copyright (c) Meta Platforms, Inc. and affiliates. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. */ 'use strict'; const { patchConsoleMethods, resetAllUnexpectedConsoleCalls, assertConsoleLogsCleared, } = require('internal-test-utils/consoleMock'); const spyOn = jest.spyOn; // Spying on console methods in production builds can mask errors. // This is why we added an explicit spyOnDev() helper. // It's too easy to accidentally use the more familiar spyOn() helper though, // So we disable it entirely. // Spying on both dev and prod will require using both spyOnDev() and spyOnProd(). global.spyOn = function () { throw new Error( 'Do not use spyOn(). ' + 'It can accidentally hide unexpected errors in production builds. ' + 'Use spyOnDev(), spyOnProd(), or spyOnDevAndProd() instead.' ); }; global.spyOnDev = function (...args) { if (__DEV__) { return spyOn(...args); } }; global.spyOnDevAndProd = spyOn; global.spyOnProd = function (...args) { if (!__DEV__) { return spyOn(...args); } }; // Patch the console to assert that all console error/warn/log calls assert. patchConsoleMethods({includeLog: !!process.env.CI}); beforeEach(resetAllUnexpectedConsoleCalls); afterEach(assertConsoleLogsCleared); // TODO: enable this check so we don't forget to reset spyOnX mocks. // afterEach(() => { // if ( // console[methodName] !== mockMethod && // !jest.isMockFunction(console[methodName]) // ) { // throw new Error( // `Test did not tear down console.${methodName} mock properly.` // ); // } // }); expect.extend({ ...require('../matchers/reactTestMatchers'), ...require('../matchers/toThrow'), });