Creates a minimal Express server for testing. 

Creates a minimal Express server for testing

lukechilds

create-test-server

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{{- packageName}} - npm Package Compare versions

  "description": "Creates a minimal Express server for testing",

    "coverage": "nyc report --reporter=text-lcov | coveralls"

    "url": "git+https://github.com/lukechilds/create-test-server.git"

  "author": "Luke Childs <lukechilds123@gmail.com> (http://lukechilds.co.uk)",

    "url": "https://github.com/lukechilds/create-test-server/issues"

  "homepage": "https://github.com/lukechilds/create-test-server",

    "eslint-config-xo-lukechilds": "^1.0.0",

> Creates a minimal Express server for testing

[![Build Status](https://travis-ci.org/lukechilds/create-test-server.svg?branch=master)](https://travis-ci.org/lukechilds/create-test-server)

[![Coverage Status](https://coveralls.io/repos/github/lukechilds/create-test-server/badge.svg?branch=master)](https://coveralls.io/github/lukechilds/create-test-server?branch=master)

[![npm](https://img.shields.io/npm/dm/create-test-server.svg)](https://www.npmjs.com/package/create-test-server)

[![npm](https://img.shields.io/npm/v/create-test-server.svg)](https://www.npmjs.com/package/create-test-server)

Inspired by the `createServer()` helper function in the [Got tests](https://github.com/sindresorhus/got/blob/1f1b6ffb6da13f483ef7f6bd92dd33f022e7de47/test/helpers/server.js).

A simple interface for creating a preconfigured Express instance listening for both HTTP and HTTPS traffic.

Ports are chosen at random for HTTP/HTTPS. A self signed certificate is automatically generated, along with an associated CA certificate for you to validate against.

Created because mocking is dirty and can [break between Node.js releases](https://github.com/node-nock/nock/issues/922). Why mock HTTP requests when you can test locally against a real server in a few lines code?

npm install --save-dev create-test-server

const createTestServer = require('create-test-server');

  // You could use any Express middleware too

  // server.url + '/foo' and server.sslUrl + '/foo' will respond with 'bar'

The following `Content-Type` headers will be parsed and exposed via `req.body`:

- URL-encoded form (`application/x-www-form-urlencoded`)

`createTestServer()` has a Promise based API that pairs well with a modern asynchronous test runner such as [AVA](https://github.com/avajs/ava).

You can create a separate server per test:

import createTestServer from 'create-test-server';

  const server = await createTestServer();

  server.get('/foo', (req, res) => res.send('bar'));

  const response = await got(`${server.url}/foo`);

Body parser options to be passed to [`body-parser`](https://github.com/expressjs/body-parser) methods.

Express instance resolved from `createTestServer()`

This is just a normal Express instance with a few extra properties.

The url you can reach the HTTP server on.

`undefined` while the server is not listening.

The port number you can reach the HTTP server on.

The url you can reach the HTTPS server on.

The port number you can reach the HTTPS server on.

The CA certificate to validate the server certificate against.˜

Returns a Promise that resolves when both the HTTP and HTTPS servers are listening.

Once the servers are listening, `server.url` and `server.sslUrl` will be updated.

Please note, this function doesn't take a port argument, it uses a new randomised port each time. Also, you don't need to manually call this after creating a server, it will start listening automatically.

Returns a Promise that resolves when both the HTTP and HTTPS servers have stopped listening.

Once the servers have stopped listening, `server.url` and `server.sslUrl` will be set to `undefined`.

- [`create-cert`](https://github.com/lukechilds/create-cert) - Super simple self signed certificates

const createCert = require('create-cert');

const bodyParser = require('body-parser');

const createTestServer = opts => createCert(opts && opts.certificate)

		const sslServer = https.createServer(keys, app);

		const send = fn => (req, res, next) => {

			const cb = typeof fn === 'function' ? fn(req, res, next) : fn;

			new Promise(resolve => resolve(cb)).then(val => {

		app.use(bodyParser.json({ type: 'application/json' }));

		app.use(bodyParser.text({ type: 'text/plain' }));

		app.use(bodyParser.urlencoded({ type: 'application/x-www-form-urlencoded', extended: true }));

		app.use(bodyParser.raw({ type: 'application/octet-stream' }));

		app.use(bodyParser.json(Object.assign({ limit: '1mb', type: 'application/json' }, opts && opts.bodyParser)));

		app.use(bodyParser.text(Object.assign({ limit: '1mb', type: 'text/plain' }, opts && opts.bodyParser)));

		app.use(bodyParser.urlencoded(Object.assign({ limit: '1mb', type: 'application/x-www-form-urlencoded', extended: true }, opts && opts.bodyParser)));

		app.use(bodyParser.raw(Object.assign({ limit: '1mb', type: 'application/octet-stream' }, opts && opts.bodyParser)));

			pify(server.listen.bind(server))().then(() => {

				app.url = `http://localhost:${app.port}`;

			pify(sslServer.listen.bind(sslServer))().then(() => {

				app.sslPort = sslServer.address().port;

				app.sslUrl = `https://localhost:${app.sslPort}`;

			pify(server.close.bind(server))().then(() => {

			pify(sslServer.close.bind(sslServer))().then(() => {

			// TODO: Use destructuring when targeting Node.js v6

test('createTestServer is a function', t => {

	t.is(typeof createTestServer, 'function');

test('createTestServer returns a Promise', t => {

	t.true(createTestServer() instanceof Promise);

test('server instance exposes useful properties', async t => {

	const server = await createTestServer();

	t.true(typeof server.port === 'number');

	t.true(typeof server.sslPort === 'number');

	t.true(typeof server.sslUrl === 'string');

	t.true(typeof server.caCert === 'string');

	t.true(typeof server.listen === 'function');

	t.true(typeof server.close === 'function');

	const { body } = await got(server.url + '/foo');

test('server can be stopped and restarted', async t => {

	await got(closedUrl + '/foo', { timeout: 100 }).catch(err => {

	const { body: bodyRestarted } = await got(server.url + '/foo');

test('server uses a new port on each listen', async t => {

test('server listens for SSL traffic', async t => {

	const { body } = await got(server.sslUrl + '/foo', { rejectUnauthorized: false });

test('server automatically parses JSON request body', async t => {

		headers: { 'content-type': 'application/json' },

test('server automatically parses text request body', async t => {

test('opts.bodyParser is passed through to bodyParser', async t => {

	const smallServer = await createTestServer({ bodyParser: { limit: '100kb' } });

	const bigServer = await createTestServer({ bodyParser: { limit: '200kb' } });

	// Custom error handler so we don't dump the stack trace in the test output

	smallServer.use((err, req, res, next) => { // eslint-disable-line no-unused-vars

		t.true(req.body.length === buf.length);

		{
		"name": "create-test-server",
		"version": "2.3.1",
		"version": "2.4.0",
		"description": "Creates a minimal Express server for testing",
		@@ -5,0 +5,0 @@ "main": "src/index.js",

		@@ -167,2 +167,9 @@ # create-test-server

		##### options.bodyParser

		Type: `object`
		Default: `undefined`

		Body parser options to be passed to [`body-parser`](https://github.com/expressjs/body-parser) methods.

		### server
		@@ -169,0 +176,0 @@

		@@ -156,2 +156,35 @@ import querystring from 'querystring';

		test('opts.bodyParser is passed through to bodyParser', async t => {
		const smallServer = await createTestServer({ bodyParser: { limit: '100kb' } });
		const bigServer = await createTestServer({ bodyParser: { limit: '200kb' } });
		const buf = Buffer.alloc(150 * 1024);

		// Custom error handler so we don't dump the stack trace in the test output
		smallServer.use((err, req, res, next) => { // eslint-disable-line no-unused-vars
		res.status(500).end();
		});

		t.plan(3);

		smallServer.post('/', (req, res) => {
		t.fail();
		res.end();
		});

		bigServer.post('/', (req, res) => {
		t.true(req.body.length === buf.length);
		res.end();
		});

		await t.throws(got.post(smallServer.url, {
		headers: { 'content-type': 'application/octet-stream' },
		body: buf
		}));

		await t.notThrows(got.post(bigServer.url, {
		headers: { 'content-type': 'application/octet-stream' },
		body: buf
		}));
		});

		test('support returning body directly', async t => {
		@@ -158,0 +191,0 @@ const server = await createTestServer();

		@@ -27,7 +27,6 @@ 'use strict';
		app.set('etag', false);
		app.use(bodyParser.json({ type: 'application/json' }));
		app.use(bodyParser.text({ type: 'text/plain' }));
		app.use(bodyParser.urlencoded({ type: 'application/x-www-form-urlencoded', extended: true }));
		app.use(bodyParser.raw({ type: 'application/octet-stream' }));

		app.use(bodyParser.json(Object.assign({ limit: '1mb', type: 'application/json' }, opts && opts.bodyParser)));
		app.use(bodyParser.text(Object.assign({ limit: '1mb', type: 'text/plain' }, opts && opts.bodyParser)));
		app.use(bodyParser.urlencoded(Object.assign({ limit: '1mb', type: 'application/x-www-form-urlencoded', extended: true }, opts && opts.bodyParser)));
		app.use(bodyParser.raw(Object.assign({ limit: '1mb', type: 'application/octet-stream' }, opts && opts.bodyParser)));
		app.caCert = keys.caCert;
		@@ -34,0 +33,0 @@

Improved metrics