How to run koa server before tests in mocha?
How to run koa server before tests in mocha?
1 answer
by
jerad ,
a month ago
@orpha
To run a Koa server before tests in Mocha, you can use the before hook in your Mocha test file to start the server before running your tests. Here's an example of how you can achieve this:
- Install necessary packages:
1
|
npm install koa koa-router supertest mocha --save-dev |
- Create a Koa server file (e.g. server.js):
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 |
const Koa = require('koa');
const Router = require('koa-router');
const app = new Koa();
const router = new Router();
router.get('/', ctx => {
ctx.body = 'Hello, Koa!';
});
app.use(router.routes());
const server = app.listen(3000);
module.exports = server;
|
- Create your test file (e.g. test.js):
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 |
const request = require('supertest');
const server = require('./server');
describe('Koa server', () => {
before(() => {
// Start the server before running tests
});
it('should return "Hello, Koa!"', () => {
return request(server)
.get('/')
.expect(200)
.expect('Hello, Koa!');
});
after(() => {
server.close();
});
});
|
- Run your Mocha tests:
1
|
mocha test.js |
This will start the Koa server before running your tests and close the server after all tests have been executed. It's important to ensure that the server is closed after the tests have finished running to release the server port and prevent any conflicts.