Created unit test for bug #451.

Reviewer: Hugo Parente Lima <hugo.pl@gmail.com>
          Luciano Wolf <luciano.wolf@openbossa.org>

tests/QtDeclarative/bug_451.py

@@ -0,0 +1,65 @@
+''' Test bug 451: http://bugs.openbossa.org/show_bug.cgi?id=451'''
+
+from PySide import QtCore, QtGui, QtDeclarative
+from helper import adjust_filename
+import sys
+import unittest
+
+class PythonObject(QtCore.QObject):
+    def __init__(self):
+        QtCore.QObject.__init__(self, None)
+        self._called = ""
+        self._arg1 = None
+        self._arg2 = None
+
+    def setCalled(self, v):
+        self._called = v
+
+    def setArg1(self, v):
+        self._arg1 = v
+
+    def setArg2(self, v):
+        self._arg2 = v
+
+    def getCalled(self):
+        return self._called
+
+    def getArg1(self):
+        return self._arg1
+
+    def getArg2(self):
+        return self._arg2
+
+    called = QtCore.Property(str, getCalled, setCalled)
+    arg1 = QtCore.Property(int, getArg1, setArg1)
+    arg2 = QtCore.Property('QVariant', getArg2, setArg2)
+
+class TestBug(unittest.TestCase):
+    def testQMLFunctionCall(self):
+        app = QtGui.QApplication(sys.argv)
+        view = QtDeclarative.QDeclarativeView()
+
+        obj = PythonObject()
+        context = view.rootContext()
+        context.setContextProperty("python", obj)
+        view.setSource(adjust_filename('bug_451.qml', __file__))
+        root = view.rootObject()
+        root.simpleFunction()
+        self.assertEqual(obj.called, "simpleFunction")
+
+        root.oneArgFunction(42)
+        self.assertEqual(obj.called, "oneArgFunction")
+        self.assertEqual(obj.arg1, 42)
+
+        root.twoArgFunction(10, app)
+        self.assertEqual(obj.called, "twoArgFunction")
+        self.assertEqual(obj.arg1, 10)
+        self.assertEqual(obj.arg2, app)
+
+        rvalue = root.returnFunction()
+        self.assertEqual(obj.called, "returnFunction")
+        self.assertEqual(rvalue, 42)
+
+
+if __name__ == '__main__':
+    unittest.main()