我在单独的文件beforAll
中定义了afterAll
和bootstrap.js
,但是我无法进行集成测试。我正在使用无服务器堆栈。我从github寻求帮助,但是该示例是用摩卡编写的,因此我尝试将其转换为玩笑。
bootstrap.js
beforeAll(async () => {
console.log('[Tests Bootstrap] Start');
await startSlsOffline((err) => {
if (err) {
console.log(err);
}
console.log('[Tests Bootstrap] Done');
});
}, 30000);
afterAll(async () => {
console.log('[Tests Teardown] Start');
await stopSlsOffline();
console.log('[Tests Teardown] Done');
});
handler.test.js
describe('get Endpoints', () => {
const server = request(`http://localhost:3005`);
test('should run get example', async () => {
const res = await server.get('/example');
console.log('res', res.body);
});
});
我的笑话配置是
module.exports = {
verbose: true,
bail: true,
coverageDirectory: 'output/coverage/jest',
setupFilesAfterEnv: [ './bootstrap.js' ]
};
我得到的输出是
> jest --config test/jest.config.js
FAIL test/handler.test.js
get Endpoints
✕ should run get example (38ms)
● get Endpoints › should run get example
connect ECONNREFUSED 127.0.0.1:3005
console.log test/bootstrap.js:6
[Tests Bootstrap] Start
console.log test/bootstrap.js:30
Serverless: Offline started with PID : 5587 and PORT: 3005
console.log test/bootstrap.js:18
[Tests Teardown] Start
console.log test/bootstrap.js:47
Serverless Offline stopped
console.log test/bootstrap.js:22
[Tests Teardown] Done
Test Suites: 1 failed, 1 total
Tests: 1 failed, 1 total
Snapshots: 0 total
Time: 2.825s
Ran all test suites.
npm ERR! Test failed. See above for more details.
答案 0 :(得分:1)
全局设置无法按您期望的方式工作。如果您看到日志,则在执行测试之后,您的beforeAll日志就会出现。您应该使用其他方式进行设置和下午茶。 Jest具有globalSetup
和globalTeardown
的概念,我想这更适合您的情况。在此过程中,您可以启动和停止服务器。配置看起来像这样
在此处了解更多-https://jestjs.io/docs/en/configuration#globalsetup-string
module.exports = {
verbose: true,
bail: true,
coverageDirectory: 'output/coverage/jest',
globalSetup: "./bootstrap.js",
globalTeardown: "./bootstrap.js"
};
您的引导程序将如下所示
const { spawn} = require('child_process');
let slsOfflineProcess;
module.exports = async () => {
console.log('[Tests Bootstrap] Start');
await startSlsOffline((err) => {
if (err) {
console.log(err);
}
console.log('[Tests Bootstrap] Done');
});
}
const startSlsOffline = (done) => {
if (slsOfflineProcess) {
slsOfflineProcess.kill('SIGINT');
console.log('Serverless Offline stopped');
done();
}
slsOfflineProcess = spawn('sls', [ 'offline', 'start', '--port', 3005 ]);
console.log(`Serverless: Offline started with PID : ${slsOfflineProcess.pid} and PORT: 3005`);
slsOfflineProcess.stdout.on('data', (data) => {
if (data.includes('Offline listening on')) {
console.log(data.toString().trim());
done();
}
});
slsOfflineProcess.stderr.on('data', (errData) => {
console.log(`Error starting Serverless Offline:\n${errData}`);
done(errData);
});
};
答案 1 :(得分:0)
我在使用globalSetup
和globalTeardown
的第一个答案的帮助下使用此配置解决了我的问题。
在此处了解更多-https://jestjs.io/docs/en/configuration#globalsetup-string
bootstrap.js
const { spawn } = require('child_process');
let slsOfflineProcess;
module.exports = async () => {
console.log('[Tests Bootstrap] Start');
await startSlsOffline().catch((e) => {
console.error(e);
return;
});
global.__SERVERD__ = slsOfflineProcess;
};
function startSlsOffline() {
slsOfflineProcess = slsOfflineProcess = spawn('sls', [ 'offline', 'start', '--port', 3005 ]);
return finishLoading();
}
const finishLoading = () =>
new Promise((resolve, reject) => {
slsOfflineProcess.stdout.on('data', (data) => {
if (data.includes('Serverless: Offline [HTTP] listening on')) {
console.log(data.toString().trim());
console.log(`Serverless: Offline started with PID : ${slsOfflineProcess.pid}`);
resolve('ok');
}
if (data.includes('address already in use')) {
reject(data.toString().trim());
}
});
slsOfflineProcess.stderr.on('data', (errData) => {
console.log(`Error starting Serverless Offline:\n${errData}`);
reject(errData);
});
});
teardown.js
module.exports = async function() {
let slsOfflineProcess = global.__SERVERD__;
slsOfflineProcess.stdin.write('q\n');
slsOfflineProcess.stdin.pause();
await slsOfflineProcess.kill('SIGINT');
console.log('Serverless Offline stopped');
};
在此链接上找到示例:https://github.com/bilalsha/sls-test-jest
如果测试失败, P.S globalTeardown
不起作用。一旦有了解决方案,我就会发布解决方案。