Resync Connection String Spec Tests (#1656)

* test(connection string): update to latest tests from specs

* fix(url-parser): catch errors thrown by url parser

Author: Jessica Lord

lib/url_parser.js

@@ -10,7 +10,13 @@ module.exports = function(url, options, callback) {
   if (typeof options === 'function') (callback = options), (options = {});
   options = options || {};
 
-  let result = parser.parse(url, true);
+  let result;
+  try {
+    result = parser.parse(url, true);
+  } catch (e) {
+    return callback(new Error('URL malformed, cannot be parsed'));
+  }
+
   if (result.protocol !== 'mongodb:' && result.protocol !== 'mongodb+srv:') {
     return callback(new Error('Invalid schema, expected `mongodb` or `mongodb+srv`'));
   }