Updated downloads example with acceptance tests.

examples/downloads/app.js

@@ -4,7 +4,7 @@
  */
 
 var express = require('../../')
-  , app = express();
+  , app = module.exports = express();
 
 app.get('/', function(req, res){
   res.send('<ul>'
@@ -28,15 +28,19 @@ app.get('/files/:file(*)', function(req, res, next){
 // will respond with 500 "Internal Server Error".
 app.use(function(err, req, res, next){
   // log all errors
-  console.error(err.stack);
-
+  if ('test' != process.env.NODE_ENV)
+    console.error(err.stack);
+
   // special-case 404s
   if (404 == err.status) {
+    res.statusCode = 404;
     res.send('Cant find that file, sorry!');
   } else {
     next(err);
   }
 });
 
-app.listen(3000);
-console.log('Express started on port 3000');
+if (!module.parent) {
+  app.listen(3000);
+  console.log('Express started on port 3000');
+}

test/acceptance/downloads.js

@@ -0,0 +1,32 @@
+var app = require('../../examples/downloads/app')
+  , request = require('../support/http');
+
+describe('downloads', function(){
+  describe('GET /', function(){
+    it('should have a link to amazing.txt', function(done){
+      request(app)
+        .get('/')
+        .expect(/href="\/files\/amazing.txt"/,done)
+    })
+  })
+
+  describe('GET /files/amazing.txt', function(){
+    it('should have a download header', function(done){
+      request(app)
+        .get('/files/amazing.txt')
+        .end(function(res){
+          res.should.have.property('statusCode',200)
+          res.headers.should.have.property('content-disposition', 'attachment; filename="amazing.txt"')
+          done()
+        })
+    })
+  })
+
+  describe('GET /files/missing.txt', function(){
+    it('should respond with 404', function(done){
+      request(app)
+        .get('/files/missing.txt')
+        .expect(404,done)
+    })
+  })
+})