Added req.ip tests

test/req.ip.js

@@ -0,0 +1,57 @@
+
+var express = require('../')
+  , request = require('./support/http');
+
+describe('req', function(){
+  describe('.ip', function(){
+    describe('when X-Forwarded-For is present', function(){
+      describe('when "trust proxy" is enabled', function(){
+        it('should return the client addr', function(done){
+          var app = express();
+
+          app.enable('trust proxy');
+
+          app.use(function(req, res, next){
+            res.send(req.ip);
+          });
+
+          request(app)
+          .get('/')
+          .set('X-Forwarded-For', 'client, p1, p2')
+          .expect('client', done);
+        })
+      })
+
+      describe('when "trust proxy" is disabled', function(){
+        it('should return the remote address', function(done){
+          var app = express();
+
+          app.use(function(req, res, next){
+            res.send(req.ip);
+          });
+
+          request(app)
+          .get('/')
+          .set('X-Forwarded-For', 'client, p1, p2')
+          .expect('127.0.0.1', done);
+        })
+      })
+    })
+
+    describe('when X-Forwarded-For is not present', function(){
+      it('should return the remote address', function(done){
+        var app = express();
+
+        app.enable('trust proxy');
+
+        app.use(function(req, res, next){
+          res.send(req.ip);
+        });
+
+        request(app)
+        .get('/')
+        .expect('127.0.0.1', done);
+      })
+    })
+  })
+})