[app][test] avoid sending lo messages to graylog during test

tomwer/app/test_.py

@@ -31,6 +31,7 @@ import sys
 import argparse
 import logging
 import unittest
+import os
 
 
 class StreamHandlerUnittestReady(logging.StreamHandler):
@@ -100,6 +101,9 @@ def main(argv):
                              "including debug messages and test help strings.")
     parser.add_argument("--qt-binding", dest="qt_binding", default=None,
                         help="Force using a Qt binding: 'PyQt5' or 'PySide2'")
+    parser.add_argument("--web", dest="web_log", default=False,
+                       help="Force unit test to export his log to graylog'",
+                       action="store_true")
     utils.test_options.add_parser_argument(parser)
 
     options = parser.parse_args(argv[1:])
@@ -134,6 +138,9 @@ def main(argv):
         else:
             raise ValueError("Qt binding '%s' is unknown" % options.qt_binding)
 
+    previous_web_log_value = os.environ.get("ORANGE_WEB_LOG")
+    os.environ["ORANGE_WEB_LOG"] = str(options.web_log)
+
     # Configure test options
     utils.test_options.configure(options)
 
@@ -154,6 +161,12 @@ def main(argv):
     test_suite.addTest(orangecontrib.tomwer.test.suite())
     result = runner.run(test_suite)
 
+    # reset the if ORANGE_WEB_LOG value
+    if previous_web_log_value is None:
+        del os.environ["ORANGE_WEB_LOG"]
+    else:
+        os.environ["ORANGE_WEB_LOG"] = previous_web_log_value
+
     if result.wasSuccessful():
         exit_status = 0
     else: