默认情况下,Jest并行运行您的测试套件,但有一个标志( – runInBand)允许您按顺序运行整个套件(如
here所指出)
我有一些不能并行运行的测试,但是顺序运行整个套件需要花费更长的时间,所以我的问题是是否有办法只运行一些测试(例如为这些测试设置一个标志或类似的东西).
解决方法
我也需要相同的功能.我有一大堆我想要运行的Jest集成测试套件.但是,由于需要设置和拆除共享资源,有些不能并行运行.所以,这是我提出的解决方案.
我更新了我的package.json脚本：
{
...
"scripts": {
...
"test": "npm run test:unit && npm run test:integration","test:integration": "jest --config=__tests__/integration/jest.config.js","test:unit": "jest --config=__tests__/unit/jest.config.js"
},...
}
至
{
...
"scripts": {
...
"test": "npm run test:unit && npm run test:integration","test:integration": "npm run test:integration:sequential && npm run test:integration:parallel","test:integration:parallel": "jest --config=__tests__/integration/jest.config.js","test:integration:sequential": "jest --config=__tests__/integration/jest.config.js --runInBand",...
}
然后我更新了__tests __ / integration / jest.config.js
module.exports = {
// Note: rootDir is relative to the directory containing this file.
rootDir: './src',setupFiles: [
'../setup.js',],testPathIgnorePatterns: [
...
],};
至
const Path = require('path');
const { defaults } = require('jest-config');
const klawSync = require('klaw-sync')
const mm = require('micromatch');
// Note: rootDir is relative to the directory containing this file.
const rootDir = './src';
const { testMatch } = defaults;
// TODO: Add the paths to the test suites that need to be run
// sequentially to this array.
const sequentialTestPathMatchPatterns = [
'<rootDir>/TestSuite1ToRunSequentially.spec.js','<rootDir>/TestSuite2ToRunSequentially.spec.js',...
];
const parallelTestPathIgnorePatterns = [
...
];
let testPathIgnorePatterns = [
...parallelTestPathIgnorePatterns,...sequentialTestPathMatchPatterns,];
const sequential = process.argv.includes('--runInBand');
if (sequential) {
const absRootDir = Path.resolve(__dirname,rootDir);
let filenames = klawSync(absRootDir,{ nodir: true })
.map(file => file.path)
.map(file => file.replace(absRootDir,''))
.map(file => file.replace(/\\/g,'/'))
.map(file => '<rootDir>' + file);
filenames = mm(filenames,testMatch);
testPathIgnorePatterns = mm.not(filenames,sequentialTestPathMatchPatterns);
}
module.exports = {
rootDir,testMatch,testPathIgnorePatterns,};
更新的jest.config.js取决于jest-config,klaw-sync和micromatch.
npm install --save-dev jest-config klaw-sync micromatch
现在,您可以运行npm run test：integration：sequential如果您只想运行需要按顺序运行的测试.
或运行npm run test：integration：parallel for parallel tests.
或者运行npm run test：integration来首先运行顺序测试.然后,当完成时,并行测试将运行.
或者运行npm run test来运行单元测试和集成测试.
注意：我在单元和集成测试中使用的目录结构如下：
__tests__
integration
src
*.spec.js
*.test.js
jest.config.js
unit
src
*.spec.js
*.test.js
jest.config.js
