test case added

Author: Niranjan Ojha

test/lib-http-proxy-passes-web-outgoing-test.js

@@ -191,6 +191,28 @@ describe('lib/http-proxy/passes/web-outgoing.js', function () {
       expect(proxyRes.headers.connection).to.eql('keep-alive');
     });
 
+    it('don`t set connection with 2.0 if exist', function() {
+      var proxyRes = { headers: {} };
+      httpProxy.setConnection({
+        httpVersion: '2.0',
+        headers: {
+          connection: 'namstey'
+        }
+      }, {}, proxyRes);
+
+      expect(proxyRes.headers.connection).to.eql(undefined);
+    });
+
+    it('don`t set connection with 2.0 if doesn`t exist', function() {
+      var proxyRes = { headers: {} };
+      httpProxy.setConnection({
+        httpVersion: '2.0',
+        headers: {}
+      }, {}, proxyRes);
+
+      expect(proxyRes.headers.connection).to.eql(undefined);
+    })
+
   });
 
   describe('#writeStatusCode', function () {