Signal emission tests with non QtGui tests

Reviewer: Marcelo Lira <marcelo.lira@openbossa.org>

tests/signals/signal_emission_test.py

@@ -5,10 +5,11 @@
 import sys
 import unittest
 
-from PySide.QtCore import QObject, QTimer, QCoreApplication, SIGNAL, SLOT, QProcess
+from PySide.QtCore import QObject, SIGNAL, SLOT, QProcess, QTimeLine
+from PySide.QtCore import QTimer, QThread
 
 try:
-    from PySide.QtGui import QSpinBox, QPushButton, QApplication
+    from PySide.QtGui import QSpinBox, QPushButton
 except ImportError:
     QSpinBox = object
     QPushButton = object
@@ -135,6 +136,70 @@ class MoreArgsOnEmit(UsesQCoreApplication):
         process = QProcess()
         self.assertRaises(TypeError, process.emit, SIGNAL('finished(int)'), 55, 55)
 
+class Dummy(QObject):
+    '''Dummy class'''
+    pass
+
+
+class PythonSignalToCppSlots(UsesQCoreApplication):
+    '''Connect python signals to C++ slots'''
+
+    def testWithoutArgs(self):
+        '''Connect python signal to QTimeLine.toggleDirection()'''
+        timeline = QTimeLine()
+        dummy = Dummy()
+        QObject.connect(dummy, SIGNAL('dummy()'),
+                        timeline, SLOT('toggleDirection()'))
+
+        orig_dir = timeline.direction()
+        dummy.emit(SIGNAL('dummy()'))
+        new_dir = timeline.direction()
+
+        if orig_dir == QTimeLine.Forward:
+            self.assertEqual(new_dir, QTimeLine.Backward)
+        else:
+            self.assertEqual(new_dir, QTimeLine.Forward)
+
+    def testWithArgs(self):
+        '''Connect python signals to QTimeLine.setCurrentTime(int)'''
+        timeline = QTimeLine()
+        dummy = Dummy()
+
+        QObject.connect(dummy, SIGNAL('dummy(int)'),
+                        timeline, SLOT('setCurrentTime(int)'))
+
+        current = timeline.currentTime()
+        dummy.emit(SIGNAL('dummy(int)'), current+42)
+        self.assertEqual(timeline.currentTime(), current+42)
+
+class CppSignalsToCppSlots(UsesQCoreApplication):
+    '''Connection between C++ slots and signals'''
+
+    def testWithoutArgs(self):
+        '''Connect QThread.started() to QTimeLine.togglePaused()'''
+        thread = QThread()
+        timeline = QTimeLine()
+
+        QObject.connect(thread, SIGNAL('started()'),
+                        timeline, SLOT('toggleDirection()'))
+        QObject.connect(thread, SIGNAL('started()'),
+                        self.exit_app_cb)
+
+        orig_dir = timeline.direction()
+
+        timer = QTimer.singleShot(1000, self.exit_app_cb) # Just for safety
+
+        thread.start()
+        self.app.exec_()
+        thread.wait()
+
+        new_dir = timeline.direction()
+
+        if orig_dir == QTimeLine.Forward:
+            self.assertEqual(new_dir, QTimeLine.Backward)
+        else:
+            self.assertEqual(new_dir, QTimeLine.Forward)
+
 
 if __name__ == '__main__':
     unittest.main()