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Since v5 relies on node >= 18, this is now possible (since v16, v14.18.0 [^1][^2]). It's functionally irrelevant: 1. It's not required for CJS nor ESM (with a few exceptions [^3]) 2. It has no performance promises However, there are upsides to this approach: 1. It brings clear boundaries to what's a built-in and what's an external dependency 2. It reduces the risk of importing unwanted deps where a built-in is expected 3. It's slightly more interoperable with other JS runtimes that provide node compatibility[^4], albeit only during development. Once imported from npm, built-ins are assumed. [^1]:https://nodejs.org/docs/latest-v22.x/api/modules.html#built-in-modules [^2]:https://github.com/nodejs/node/pull/37246 [^3]:https://nodejs.org/api/modules.html#built-in-modules-with-mandatory-node-prefix [^4]:https://docs.deno.com/runtime/fundamentals/node/#using-node's-built-in-modules
83 lines
2.3 KiB
JavaScript
83 lines
2.3 KiB
JavaScript
'use strict'
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var assert = require('node:assert')
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var express = require('../');
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var request = require('supertest');
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describe('exports', function(){
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it('should expose Router', function(){
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assert.strictEqual(typeof express.Router, 'function')
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})
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it('should expose json middleware', function () {
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assert.equal(typeof express.json, 'function')
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assert.equal(express.json.length, 1)
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})
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it('should expose raw middleware', function () {
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assert.equal(typeof express.raw, 'function')
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assert.equal(express.raw.length, 1)
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})
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it('should expose static middleware', function () {
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assert.equal(typeof express.static, 'function')
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assert.equal(express.static.length, 2)
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})
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it('should expose text middleware', function () {
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assert.equal(typeof express.text, 'function')
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assert.equal(express.text.length, 1)
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})
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it('should expose urlencoded middleware', function () {
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assert.equal(typeof express.urlencoded, 'function')
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assert.equal(express.urlencoded.length, 1)
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})
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it('should expose the application prototype', function(){
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assert.strictEqual(typeof express.application, 'object')
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assert.strictEqual(typeof express.application.set, 'function')
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})
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it('should expose the request prototype', function(){
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assert.strictEqual(typeof express.request, 'object')
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assert.strictEqual(typeof express.request.accepts, 'function')
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})
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it('should expose the response prototype', function(){
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assert.strictEqual(typeof express.response, 'object')
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assert.strictEqual(typeof express.response.send, 'function')
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})
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it('should permit modifying the .application prototype', function(){
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express.application.foo = function(){ return 'bar'; };
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assert.strictEqual(express().foo(), 'bar')
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})
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it('should permit modifying the .request prototype', function(done){
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express.request.foo = function(){ return 'bar'; };
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var app = express();
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app.use(function(req, res, next){
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res.end(req.foo());
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});
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request(app)
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.get('/')
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.expect('bar', done);
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})
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it('should permit modifying the .response prototype', function(done){
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express.response.foo = function(){ this.send('bar'); };
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var app = express();
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app.use(function(req, res, next){
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res.foo();
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});
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request(app)
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.get('/')
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.expect('bar', done);
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})
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})
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