Created new unittest model.

Separete unittest for module.
Only run unittest for compiled modules.

Reviewer: Marcelo Lira <marcelo.lira@openbossa.org>,
          Luciano Wolf <luciano.wolf@openbossa.org>

tests/QtGui/qwidget_test.py

@@ -0,0 +1,30 @@
+
+import unittest
+
+from PySide.QtGui import QWidget, QMainWindow
+from helper import UsesQApplication
+
+class QWidgetInherit(QMainWindow):
+    def __init__(self):
+        QWidget.__init__(self)
+
+class QWidgetTest(UsesQApplication):
+
+    def testInheritance(self):
+        newobj = QWidgetInherit()
+        widget = QWidget()
+        newobj.setCentralWidget(widget)
+        self.assertEqual(widget, newobj.centralWidget())
+
+class QWidgetVisible(UsesQApplication):
+
+    def testBasic(self):
+        # Also related to bug #244, on existence of setVisible'''
+        widget = QWidget()
+        self.assert_(not widget.isVisible())
+        widget.setVisible(True)
+        self.assert_(widget.isVisible())
+
+
+if __name__ == '__main__':
+    unittest.main()