我有以下功能用于打开数据库连接并运行我的 fastify 服务器实例(server.js)
import fastify from "fastify";
import fastifyCors from "fastify-cors";
import { MongoClient } from "mongodb";
import characterRoute from "./routes/character";
import gearRoute from "./routes/gear";
import CharacterDAO from "./dao/character";
import GearDAO from "./dao/gear";
import { seedData } from "./dataSeed";
let connection;
let serverInstance;
// server startup command
export const startServer = async port => {
try {
serverInstance = fastify({ logger: false });
serverInstance.register(fastifyCors, {
origin: "*"
});
serverInstance.register(characterRoute);
serverInstance.register(gearRoute);
await serverInstance.listen(port, "0.0.0.0");
} catch (err) {
serverInstance.log.error(err);
process.exit(1);
}
};
// server shutdown command
export const killServer = async () => {
await serverInstance.close();
console.log("server instance closed");
await connection.close();
console.log("db connection closed");
};
// connect mongoDb, seed data if needed, run fastify server
export const runServer = async ({ dbUrl, dbName, environment, port }) => {
// test seed data when starting server if running a test suite
if (environment === "test") {
await seedData({
hostUrl: dbUrl,
databaseName: dbName
});
}
connection = await MongoClient.connect(dbUrl, {
poolSize: 50,
useNewUrlParser: true,
useUnifiedTopology: true,
wtimeout: 2500
});
const database = await connection.db(dbName);
// inject database connection into DAO objects
CharacterDAO.injectDB(database);
GearDAO.injectDB(database);
// start the fastify server
await startServer(port);
};
现在我想对正在运行的服务器实例运行一些测试,然后退出运行程序。我一直在阅读fastify 文档并尝试将设置调整为开玩笑。这是我的测试文件:
import { killServer, runServer } from "../server";
const serverOptions = {
dbUrl: process.env.dbUrl,
dbName: process.env.dbName,
environment: process.env.environment,
port: process.env.port
};
beforeAll(async () => {
// run the server instance we are testing against
await runServer({
...serverOptions
});
});
afterAll(async () => {
// figure out a way to kill the test server here
await killServer();
});
但是在我的测试完成后,我在控制台中收到以下警告:
Jest did not exit one second after the test run has completed.
This usually means that there are asynchronous operations that weren't stopped in your tests. Consider running Jest with `--detectOpenHandles` to troubleshoot this issue.
而且我必须手动结束测试套件。
这可能是什么原因?在测试套件完成后,我的.close()
函数似乎被正确调用(之后我得到了 console.logs)。
供参考,jestconfig.json
{
"transform": {
"^.+\\.(t|j)sx?$": "babel-jest"
},
"testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",
"moduleFileExtensions": ["ts", "tsx", "js", "jsx", "json", "node"]
}
npm 测试脚本(参数省略)
dbUrl=mongodb+srv://saw-dsadw-dsawad@cluster0-dsa.dsa.dsa dbName=dsa-fwa- environment=test port=4000 npx jest --config jestconfig.json
运行相同的脚本--detectOpenHandles
不提供任何额外的输出。