| 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 | * @emails react-core |
| 8 | */ |
| 9 | |
| 10 | 'use strict'; |
| 11 | |
| 12 | const spawnSync = require('child_process').spawnSync; |
| 13 | |
| 14 | describe('ReactClassEquivalence', () => { |
| 15 | it('tests the same thing for es6 classes and CoffeeScript', () => { |
| 16 | const result1 = runJest('ReactCoffeeScriptClass-test.coffee'); |
| 17 | const result2 = runJest('ReactES6Class-test.js'); |
| 18 | compareResults(result1, result2); |
| 19 | }); |
| 20 | |
| 21 | it('tests the same thing for es6 classes and TypeScript', () => { |
| 22 | const result1 = runJest('ReactTypeScriptClass-test.ts'); |
| 23 | const result2 = runJest('ReactES6Class-test.js'); |
| 24 | compareResults(result1, result2); |
| 25 | }); |
| 26 | }); |
| 27 | |
| 28 | function runJest(testFile) { |
| 29 | const cwd = process.cwd(); |
| 30 | const extension = process.platform === 'win32' ? '.cmd' : ''; |
| 31 | const command = process.env.npm_lifecycle_event; |
| 32 | const defaultReporter = '--reporters=default'; |
| 33 | const equivalenceReporter = |
| 34 | '--reporters=<rootDir>/scripts/jest/spec-equivalence-reporter/equivalenceReporter.js'; |
| 35 | if (!command.startsWith('test')) { |
| 36 | throw new Error( |
| 37 | 'Expected this test to run as a result of one of test commands.', |
| 38 | ); |
| 39 | } |
| 40 | const result = spawnSync( |
| 41 | 'yarn' + extension, |
| 42 | [command, testFile, defaultReporter, equivalenceReporter], |
| 43 | { |
| 44 | cwd, |
| 45 | env: Object.assign({}, process.env, { |
| 46 | REACT_CLASS_EQUIVALENCE_TEST: 'true', |
| 47 | }), |
| 48 | }, |
| 49 | ); |
| 50 | |
| 51 | if (result.error) { |
| 52 | throw result.error; |
| 53 | } |
| 54 | |
| 55 | if (result.status !== 0) { |
| 56 | throw new Error( |
| 57 | 'jest process exited with: ' + |
| 58 | result.status + |
| 59 | '\n' + |
| 60 | 'stdout: ' + |
| 61 | result.stdout.toString() + |
| 62 | 'stderr: ' + |
| 63 | result.stderr.toString(), |
| 64 | ); |
| 65 | } |
| 66 | |
| 67 | return result.stdout.toString() + result.stderr.toString(); |
| 68 | } |
| 69 | |
| 70 | function compareResults(a, b) { |
| 71 | const regexp = /EQUIVALENCE.*$/gm; |
| 72 | const aSpecs = (a.match(regexp) || []).sort().join('\n'); |
| 73 | const bSpecs = (b.match(regexp) || []).sort().join('\n'); |
| 74 | |
| 75 | if (aSpecs.length === 0 && bSpecs.length === 0) { |
| 76 | throw new Error('No spec results found in the output'); |
| 77 | } |
| 78 | |
| 79 | expect(aSpecs).toEqual(bSpecs); |
| 80 | } |