refactored res.get() tests

test/res.get.js

@@ -1,23 +1,14 @@
 
 var express = require('../')
-  , request = require('./support/http');
+  , res = express.response;
 
 describe('res', function(){
   describe('.get(field)', function(){
-    it('should get the response header field', function(done){
-      var app = express();
-
-      app.use(function(req, res){
-        res.setHeader('Content-Type', 'text/x-foo');
-        res.end(res.get('Content-Type'));
-      });
-
-      request(app)
-      .get('/')
-      .end(function(res){
-        res.body.should.equal('text/x-foo');
-        done();
-      })
+    it('should get the response header field', function(){
+      res.setHeader('Content-Type', 'text/x-foo');
+      res.get('Content-Type').should.equal('text/x-foo');
+      res.get('Content-type').should.equal('text/x-foo');
+      res.get('content-type').should.equal('text/x-foo');
     })
   })
 })