Adding new-style signal/slot tests.

Based on Marcelo Lira's source code.

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

tests/signals/ref04_test.py

@@ -0,0 +1,56 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import unittest
+from PySide.QtCore import QObject, Signal
+
+class ExtQObject(QObject):
+
+    mySignal = Signal()
+
+    def __init__(self):
+        QObject.__init__(self)
+
+
+class UserSignalTest(unittest.TestCase):
+
+    def setUp(self):
+        self.emitter = ExtQObject()
+        self.counter = 0
+
+    def tearDown(self):
+        del self.emitter
+        del self.counter
+
+    def testConnectEmitDisconnect(self):
+
+        def slot():
+            self.counter += 1
+
+        self.emitter.mySignal.connect(slot)
+
+        self.assertEqual(self.counter, 0)
+        self.emitter.mySignal.emit()
+        self.assertEqual(self.counter, 1)
+        self.emitter.mySignal.emit()
+        self.assertEqual(self.counter, 2)
+
+        self.emitter.mySignal.disconnect(slot)
+
+        self.emitter.mySignal.emit()
+        self.assertEqual(self.counter, 2)
+
+#    def testConnectWithConfigureMethod(self):
+#
+#        def slot():
+#            self.counter += 1
+#
+#        self.emitter.pyqtConfigure(mySignal=slot)
+#        self.assertEqual(self.counter, 0)
+#        self.emitter.mySignal.emit()
+#        self.assertEqual(self.counter, 1)
+
+
+if __name__ == '__main__':
+    unittest.main()
+