Mocha API Testing: getting 'TypeError: app.address is not a function'
You don't export anything in your app module. Try adding this to your app.js file:
module.exports = server
It's important to export the http.Server object returned by app.listen(3000) instead of just the function app, otherwise you will get TypeError: app.address is not a function.
Example:
index.js
const koa = require('koa');const app = new koa();module.exports = app.listen(3000);index.spec.js
const request = require('supertest');const app = require('./index.js');describe('User Registration', () => { const agent = request.agent(app); it('should ...', () => {
This may also help, and satisfies @dman point of changing application code to fit a test.
make your request to the localhost and port as neededchai.request('http://localhost:5000')
instead of
chai.request(server)
this fixed the same error message I had using Koa JS (v2) and ava js.