Split signal tests into gui and core tests

Can't use a QApplication and a QCoreApplication in
the same process

tests/signals/lambda_test.py

@@ -7,15 +7,7 @@ import unittest
 
 from PySide.QtCore import QObject, SIGNAL, QProcess
 
-try:
-    from PySide.QtGui import QApplication, QSpinBox, QPushButton
-except ImportError:
-    QApplication = object
-    QSpinBox = object
-    QPushButton = object
-
-from helper import UsesQApplication, UsesQCoreApplication
-from helper import decorators
+from helper import UsesQCoreApplication
 
 
 class Dummy(QObject):
@@ -69,25 +61,5 @@ class QtSigLambda(UsesQCoreApplication):
         self.assertEqual(dummy.called, proc.exitCode())
 
 
-@decorators.requires('PySide.QtGui')
-class QtGuiSigLambda(UsesQApplication):
-
-    def testButton(self):
-        #Connecting a lambda to a QPushButton.clicked()
-        obj = QPushButton('label')
-        QObject.connect(obj, SIGNAL('clicked()'),
-                        lambda: setattr(obj, 'called', True))
-        obj.click()
-        self.assert_(obj.called)
-
-    def testSpinButton(self):
-        #Connecting a lambda to a QPushButton.clicked()
-        obj = QSpinBox()
-        arg = 444
-        QObject.connect(obj, SIGNAL('valueChanged(int)'),
-                        lambda x: setattr(obj, 'arg', 444))
-        obj.setValue(444)
-        self.assertEqual(obj.arg, arg)
-
 if __name__ == '__main__':
     unittest.main()