create test application for msc streaming

asn1_value_editor/test_msc_streaming.py

+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+    TASTE ASN.1 Value Editor
+
+    Testing module for the MSC Streaming function
+
+    Copyright (c) 2012-2018 European Space Agency
+
+    Contact: maxime.perrotin@esa.int
+
+    License is LGPLv3 - Check the LICENSE file
+"""
+
+import sys
+import signal
+
+from PySide.QtGui import QGraphicsView, QApplication
+from PySide.QtCore import Qt
+
+from mscStreamingScene import MscStreamingScene
+
+def test_msc():
+    ''' Create an MSC Scene and add items to check if streaming is ok '''
+    app = QApplication(sys.argv)
+
+
+    msc_scene = MscStreamingScene()
+    msc_view  = QGraphicsView(msc_scene)
+
+    # Create two MSC instances on the diagram
+    env_x          = 80.0
+    taste_x        = 600.0
+    gui_instance   = msc_scene.addInstance(env_x, 0, label="GUI")
+    taste_instance = msc_scene.addInstance(taste_x, 0, label="SYSTEM")
+
+    next_y          = 130.0
+    increase_factor = 30
+
+    counter = 1
+
+    msc_view.show()
+
+    item = msc_scene.addMessage(gui_instance,
+                                taste_instance,
+                                next_y,
+                                "Hello World ({})".format(counter))
+
+    item.show()
+    msc_scene.visible_items.append (item)
+
+    counter += 1
+    next_y  += increase_factor
+    app.exec_()
+
+
+if __name__ == '__main__':
+    # Exit app on Ctrl-C
+    signal.signal(signal.SIGINT, signal.SIG_DFL)
+    sys.exit(test_msc())
+