Fix a minor corner case related to server status button when canceling a scheduled share. Leverage scheduled shares in order to test 'cancel' action in local mode for better test coverage

tests/local_onionshare_share_mode_cancel_share_test.py

@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+import pytest
+import unittest
+
+from .GuiShareTest import GuiShareTest
+
+class LocalShareModeCancelTest(unittest.TestCase, GuiShareTest):
+    @classmethod
+    def setUpClass(cls):
+        test_settings = {
+           "startup_timer": True,
+        }
+        cls.gui = GuiShareTest.set_up(test_settings)
+
+    @classmethod
+    def tearDownClass(cls):
+        GuiShareTest.tear_down()
+
+    @pytest.mark.gui
+    def test_gui(self):
+        self.run_all_common_setup_tests()
+        self.run_all_share_mode_setup_tests()
+        self.cancel_the_share(self.gui.share_mode)
+
+if __name__ == "__main__":
+    unittest.main()