Created unit test for bug #1002.

Reviewer: Hugo Parente <hugo.lima@openbossa.org>
          Luciano Wolf <luciano.wolf@openbossa.org>

tests/QtGui/bug_1002.py

@@ -0,0 +1,19 @@
+import unittest
+import sys
+from PySide.QtGui import QWidget, QPushButton
+
+from helper import UsesQApplication
+
+class TestBug1002 (UsesQApplication):
+    def testReturnWindow(self):
+        widget = QWidget()
+        button = QPushButton(widget)
+        self.assertEqual(sys.getrefcount(widget), 2)
+        window = button.window()
+        self.assertEqual(sys.getrefcount(widget), 3)
+        self.assertEqual(sys.getrefcount(window), 3)
+
+        del widget
+
+if __name__ == '__main__':
+    unittest.main()