Adding an initial unit test for the UI

tests/test_ui.py

@@ -0,0 +1,35 @@
+#
+#  test_ui.py
+#  
+#  Copyright The GOLDS-UFSC Telemetry Viewer Contributors.
+#  
+#  This file is part of GOLDS-UFSC Telemetry Viewer.
+#
+#  GOLDS-UFSC Telemetry Viewer is free software; you can redistribute it
+#  and/or modify it under the terms of the GNU General Public License as
+#  published by the Free Software Foundation, either version 3 of the
+#  License, or (at your option) any later version.
+#  
+#  GOLDS-UFSC Telemetry Viewer is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#  
+#  You should have received a copy of the GNU General Public
+#  License along with GOLDS-UFSC Telemetry Viewer; if not, see
+#  <http://www.gnu.org/licenses/>.
+#  
+#
+
+import gi
+gi.require_version('Gtk', '3.0')
+from gi.repository import Gtk
+
+def test_ui():
+    builder = Gtk.Builder()
+    builder.add_from_file("gutv/data/ui/gutv.glade")
+
+    # Main window
+    window                          = builder.get_object("window_main")
+
+    assert window                           != None