From 5ef31360f7cce01a2181ac28abaebbe9e1a02251 Mon Sep 17 00:00:00 2001
From: David Capello <davidcapello@gmail.com>
Date: Mon, 20 Aug 2018 14:50:21 -0300
Subject: [PATCH] Add app.transaction() test

---
 scripts/app_transaction.js | 40 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 scripts/app_transaction.js

diff --git a/scripts/app_transaction.js b/scripts/app_transaction.js
new file mode 100644
index 000000000..79734d4dd
--- /dev/null
+++ b/scripts/app_transaction.js
@@ -0,0 +1,40 @@
+// Copyright (C) 2018  David Capello
+//
+// This file is released under the terms of the MIT license.
+// Read LICENSE.txt for more information.
+
+var s = new Sprite(16, 32)
+console.assert(s.width == 16)
+console.assert(s.height == 32)
+
+s.width = 20
+console.assert(s.width == 20)
+console.assert(s.height == 32)
+
+s.height = 40
+console.assert(s.width == 20)
+console.assert(s.height == 40)
+
+app.undo()
+console.assert(s.width == 20)
+console.assert(s.height == 32)
+
+app.undo()
+console.assert(s.width == 16)
+console.assert(s.height == 32)
+
+app.transaction(
+    function() {
+        s.width = 20
+        s.height = 40
+    })
+console.assert(s.width == 20)
+console.assert(s.height == 40)
+
+app.undo()
+console.assert(s.width == 16)
+console.assert(s.height == 32)
+
+app.redo()
+console.assert(s.width == 20)
+console.assert(s.height == 40)