Handle aborting properly

HearingTestGUI.py

@@ -213,8 +213,13 @@ class TestWindow(QMainWindow):
 
     def aborted(self):
         self.log.append('Test aborted')
+        self.title.setText(self.start_text)
+        self.test = None
+        self.test_running = False
 
     def test_finished(self):
+        if not self.test_running:
+            return
         self.test_running = False
         self.title.setText(self.start_text)
         self.log.append("Finished test")