Changed the position impl

Author: Zhen

lib/result-summary.js

@@ -231,10 +231,21 @@ class Notification {
    * @param {Object} notification - Object with notification data
    */
   constructor(notification) {
-    this.code = notifications.code;
-    this.title = notifications.title;
-    this.description = notifications.desciption;
-    this.position[offset, line, column] = notifications.position;
+    this.code = notification.code;
+    this.title = notification.title;
+    this.description = notification.desciption;
+    this.position = this._constructPosition(notification.position);
+  }
+
+  _constructPosition(pos) {
+    if(!pos) {
+      return {};
+    }
+    return {
+      offset: pos.offset.toInt(),
+      line: pos.line.toInt(),
+      column: pos.column.toInt()
+    }
   }
 }
 

test/session.test.js

@@ -198,7 +198,9 @@ describe('session', function() {
     result.then(function( records ) {
       var sum = result.summarize();
       expect(sum.notifications.length).toBeGreaterThan(0);
-      expect(sum.notifications[0].position.offset).toBeGreaterThan(0);
+      expect(sum.notifications[0].code).toBe("Neo.ClientNotification.Statement.CartesianProduct");
+      expect(sum.notifications[0].title).toBe("This query builds a cartesian product between disconnected patterns.");
+      expect(sum.notifications[0].position.column).toBeGreaterThan(0);
       driver.close(); 
       done();
     });