node.js 中的 Mocha 测试挂起或丢失
Mocha tests in node.js hanging or missing
目前我正在做一个项目,我应该在 node.js 中使用 express.js 编写路由。
项目的测试和其他部分不是我写的,因此我认为它们没有错误。
我遇到的问题是:在程序的当前阶段,当我 运行“npm test”时,我的测试挂起并且控制无法返回到命令行。我注意到当我注释掉 server.js、api.js 和 employees.js 中的所有行时,测试 运行 顺利进行。
此外,有时只执行一部分测试,比如其中的 1/3。
知道为什么测试挂起,以及如何修复它们吗?
这里是 package.json 文件加上目前项目的主要文件。
提前致谢。
package.json
{
"name": "expresso",
"version": "1.0.0",
"description": "",
"main": "server.js",
"scripts": {
"test": "mocha"
},
"author": "",
"license": "ISC",
"dependencies": {
"body-parser": "^1.19.0",
"chai": "^4.1.2",
"cors": "^2.8.5",
"errorhandler": "^1.5.1",
"express": "^4.17.1",
"mocha": "^6.1.4",
"react": "^15.6.1",
"react-dom": "^15.6.1",
"react-router-dom": "^4.2.2",
"sqlite3": "^4.0.6",
"supertest": "^3.0.0",
"whatwg-fetch": "^2.0.3"
},
"devDependencies": {
"babel": "^6.23.0",
"babel-core": "^6.26.0",
"babel-loader": "^7.1.2",
"babel-preset-es2015": "^6.24.1",
"babel-preset-react": "^6.24.1",
"babel-preset-stage-2": "^6.24.1",
"webpack": "^3.5.5"
}
}
server.js
const bodyParser = require('body-parser');
const cors = require('cors');
const errorHandler = require('errorhandler');
const express = require('express');
const apiRouter = require('./api/api');
const app = express();
const PORT = process.env.PORT || 4000;
app.use(bodyParser.json());
app.use(cors());
app.use('/api', apiRouter);
app.use(errorHandler());
app.listen(PORT, () => {
console.log(`Listening on port ${PORT}`);
});
module.exports = app;
api.js
const express = require('express');
const apiRouter = express.Router();
const employeesRouter = require('./employees');
// <<< api/employees >>>
apiRouter.use('/employees', employeesRouter);
module.exports = apiRouter;
employees.js
const express = require('express');
const employeesRouter = express.Router();
const sqlite = require('sqlite3');
const db = new sqlite.Database('./database.sqlite');
// <<< api/employees >>>
employeesRouter.get('/', (req, res, next) => {
const sql = 'SELECT * FROM Employee WHERE is_current_employee = 1';
db.all(sql, (error, employees) => {
if (error) {
next(error);
} else {
res.status(200).json({ employees: employees });
}
});
});
module.exports = employeesRouter;
您必须将 scripts -> test
中的标签 --exit
添加到您的 package.json
。
结果应该是这样的:
"scripts": {
"test": "mocha --exit"
}
根据docs
--exit : Force Mocha to quit after tests complete
之后,当测试完成时,命令行再次可用。
目前我正在做一个项目,我应该在 node.js 中使用 express.js 编写路由。
项目的测试和其他部分不是我写的,因此我认为它们没有错误。
我遇到的问题是:在程序的当前阶段,当我 运行“npm test”时,我的测试挂起并且控制无法返回到命令行。我注意到当我注释掉 server.js、api.js 和 employees.js 中的所有行时,测试 运行 顺利进行。
此外,有时只执行一部分测试,比如其中的 1/3。
知道为什么测试挂起,以及如何修复它们吗?
这里是 package.json 文件加上目前项目的主要文件。
提前致谢。
package.json
{
"name": "expresso",
"version": "1.0.0",
"description": "",
"main": "server.js",
"scripts": {
"test": "mocha"
},
"author": "",
"license": "ISC",
"dependencies": {
"body-parser": "^1.19.0",
"chai": "^4.1.2",
"cors": "^2.8.5",
"errorhandler": "^1.5.1",
"express": "^4.17.1",
"mocha": "^6.1.4",
"react": "^15.6.1",
"react-dom": "^15.6.1",
"react-router-dom": "^4.2.2",
"sqlite3": "^4.0.6",
"supertest": "^3.0.0",
"whatwg-fetch": "^2.0.3"
},
"devDependencies": {
"babel": "^6.23.0",
"babel-core": "^6.26.0",
"babel-loader": "^7.1.2",
"babel-preset-es2015": "^6.24.1",
"babel-preset-react": "^6.24.1",
"babel-preset-stage-2": "^6.24.1",
"webpack": "^3.5.5"
}
}
server.js
const bodyParser = require('body-parser');
const cors = require('cors');
const errorHandler = require('errorhandler');
const express = require('express');
const apiRouter = require('./api/api');
const app = express();
const PORT = process.env.PORT || 4000;
app.use(bodyParser.json());
app.use(cors());
app.use('/api', apiRouter);
app.use(errorHandler());
app.listen(PORT, () => {
console.log(`Listening on port ${PORT}`);
});
module.exports = app;
api.js
const express = require('express');
const apiRouter = express.Router();
const employeesRouter = require('./employees');
// <<< api/employees >>>
apiRouter.use('/employees', employeesRouter);
module.exports = apiRouter;
employees.js
const express = require('express');
const employeesRouter = express.Router();
const sqlite = require('sqlite3');
const db = new sqlite.Database('./database.sqlite');
// <<< api/employees >>>
employeesRouter.get('/', (req, res, next) => {
const sql = 'SELECT * FROM Employee WHERE is_current_employee = 1';
db.all(sql, (error, employees) => {
if (error) {
next(error);
} else {
res.status(200).json({ employees: employees });
}
});
});
module.exports = employeesRouter;
您必须将 scripts -> test
中的标签 --exit
添加到您的 package.json
。
结果应该是这样的:
"scripts": {
"test": "mocha --exit"
}
根据docs
--exit : Force Mocha to quit after tests complete
之后,当测试完成时,命令行再次可用。