Create unit test for bug #816.

Reviewer: Marcelo Lira <marcelo.lira@openbossa.org>
          Hugo Parente Lima <hugo.pl@gmail.com>

tests/pysidetest/application_test.py

@@ -0,0 +1,23 @@
+#!/usr/bin/python
+
+import unittest
+from testbinding import TestObject
+from PySide.QtGui import QApplication
+
+class QApplicationInstance(unittest.TestCase):
+
+    def appDestroyed(self):
+        sefl.assert_(False)
+
+    def testInstanceObject(self):
+        TestObject.createApp()
+        app1 = QApplication.instance()
+        app2 = QApplication.instance()
+        app1.setObjectName("MyApp")
+        self.assertEqual(app1, app2)
+        self.assertEqual(app2.objectName(), app1.objectName())
+        app1.destroyed.connect(self.appDestroyed)
+
+if __name__ == '__main__':
+    unittest.main()
+