tests: use main createQuery in tests

Author: dougwilson

test/common.js

@@ -47,6 +47,8 @@ common.createConnection = function(config) {
   return Mysql.createConnection(config);
 };
 
+common.createQuery = Mysql.createQuery;
+
 common.createTestDatabase = function createTestDatabase(connection, callback) {
   var database = common.testDatabase;
 

test/unit/query/test-stream-before-queue.js

@@ -1,7 +1,7 @@
 var assert = require('assert');
 var common = require('../../common');
 
-var query  = common.Connection.createQuery('SELECT 1');
+var query  = common.createQuery('SELECT 1');
 var stream = query.stream();
 
 assert.doesNotThrow(function () {