Adding config option to restrict based on the size of the response co…

test/unit/adapters/http.js

@@ -127,4 +127,31 @@ module.exports = {
       });
     });
   },
+  
+  testMaxContentLength: function(test) {
+    var str = Array(100000).join('ж');
+
+    server = http.createServer(function (req, res) {
+      res.setHeader('Content-Type', 'text/html; charset=UTF-8');
+      res.end(str);
+    }).listen(4444, function () {
+      var success = false, failure = false, error;
+
+      axios.get('http://localhost:4444/', {
+        maxContentLength: 2000
+      }).then(function (res) {
+        success = true;
+      }).catch(function (res) {
+        error = res;
+        failure = true;
+      });
+      
+      setTimeout(function () {
+        test.equal(success, false, 'request should not succeed');
+        test.equal(failure, true, 'request should fail');
+        test.equal(error.message, 'maxContentLength size of 2000 exceeded');
+        test.done();
+      }, 100);
+    });
+  }
 };