express.static.js — express Source File

Architecture documentation for express.static.js, a javascript file in the express codebase.

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Source Code

'use strict'

var assert = require('node:assert')
var express = require('..')
var path = require('node:path')
const { Buffer } = require('node:buffer');

var request = require('supertest')
var utils = require('./support/utils')

var fixtures = path.join(__dirname, '/fixtures')
var relative = path.relative(process.cwd(), fixtures)

var skipRelative = ~relative.indexOf('..') || path.resolve(relative) === relative

describe('express.static()', function () {
  describe('basic operations', function () {
    before(function () {
      this.app = createApp()
    })

    it('should require root path', function () {
      assert.throws(express.static.bind(), /root path required/)
    })

    it('should require root path to be string', function () {
      assert.throws(express.static.bind(null, 42), /root path.*string/)
    })

    it('should serve static files', function (done) {
      request(this.app)
        .get('/todo.txt')
        .expect(200, '- groceries', done)
    })

    it('should support nesting', function (done) {
      request(this.app)
        .get('/users/tobi.txt')
        .expect(200, 'ferret', done)
    })

    it('should set Content-Type', function (done) {
      request(this.app)
        .get('/todo.txt')
        .expect('Content-Type', 'text/plain; charset=utf-8')
        .expect(200, done)
    })

    it('should set Last-Modified', function (done) {
      request(this.app)
        .get('/todo.txt')
        .expect('Last-Modified', /\d{2} \w{3} \d{4}/)
        .expect(200, done)
    })

    it('should default max-age=0', function (done) {
      request(this.app)
        .get('/todo.txt')
        .expect('Cache-Control', 'public, max-age=0')
        .expect(200, done)
// ... (756 more lines)