Avoid failing when req.setTimeout is called.

lib/unexpectedExpress.js

@@ -226,6 +226,10 @@ module.exports = {
                 req.push(null);
             }
 
+            // Make req.connection.setTimeout a no-op so that req.setTimeout doesn't break
+            // in this mocked state:
+            req.connection.setTimeout = function () {};
+
             req.httpVersion = httpRequest.protocolVersion;
             var matchProtocolVersion = String(httpRequest.protocolVersion).match(/^(\d+)(?:\.(\d+))$/);
             if (matchProtocolVersion) {
@@ -261,7 +265,6 @@ module.exports = {
                 rawResponseChunks.push(chunk);
                 cb();
             };
-
             var isAsync = false,
                 isDestroyed = false,
                 requestDestroyed = false,

test/unexpectedExpress.js

@@ -123,6 +123,16 @@ describe('unexpectedExpress', function () {
         }), 'to yield exchange satisfying', {response: 404});
     });
 
+    it('should not break when req.setTimeout is called', function () {
+        return expect(express().use(function (req, res, next) {
+            req.setTimeout(10);
+            res.status(200).end();
+        }), 'to yield exchange satisfying', {
+            request: 'GET /',
+            response: 200
+        });
+    });
+
     it('should allow overriding the HTTP version', function () {
         return expect(express().use(function (req, res, next) {
             expect(req.httpVersion, 'to equal', '2.0');