mumble: Convert functional tests to non-BDD python format

Signed-off-by: James Valleroy <jvalleroy@mailbox.org>
Reviewed-by: Sunil Mohan Adapa <sunil@medhas.org>

plinth/modules/mumble/tests/mumble.feature

@@ -1,28 +0,0 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
-
-@apps @mumble
-Feature: Mumble Voice Chat
-  Run Mumble voice chat server.
-
-Background:
-  Given I'm a logged in user
-  Given the mumble application is installed
-
-Scenario: Enable mumble application
-  Given the mumble application is disabled
-  When I enable the mumble application
-  Then the mumble service should be running
-
-# TODO: Improve this to actually check that data such as rooms, identity or
-# certificates are restored.
-@backups
-Scenario: Backup and restore mumble
-  Given the mumble application is enabled
-  When I create a backup of the mumble app data with name test_mumble
-  And I restore the mumble app data backup with name test_mumble
-  Then the mumble service should be running
-
-Scenario: Disable mumble application
-  Given the mumble application is enabled
-  When I disable the mumble application
-  Then the mumble service should not be running

plinth/modules/mumble/tests/test_functional.py

@@ -3,6 +3,37 @@
 Functional, browser based tests for mumble app.
 """
 
-from pytest_bdd import scenarios
+import pytest
+from plinth.tests import functional
 
-scenarios('mumble.feature')
+pytestmark = [pytest.mark.apps, pytest.mark.mumble]
+
+
+@pytest.fixture(scope='module', autouse=True)
+def fixture_background(session_browser):
+    """Login and install the app."""
+    functional.login(session_browser)
+    functional.install(session_browser, 'mumble')
+    yield
+    functional.app_disable(session_browser, 'mumble')
+
+
+def test_enable_disable(session_browser):
+    """Test enabling the app."""
+    functional.app_disable(session_browser, 'mumble')
+
+    functional.app_enable(session_browser, 'mumble')
+    assert functional.service_is_running(session_browser, 'mumble')
+
+    functional.app_disable(session_browser, 'mumble')
+    assert functional.service_is_not_running(session_browser, 'mumble')
+
+
+# TODO: Improve this to actually check that data such as rooms, identity or
+# certificates are restored.
+def test_backup_restore(session_browser):
+    """Test backup and restore."""
+    functional.app_enable(session_browser, 'mumble')
+    functional.backup_create(session_browser, 'mumble', 'test_mumble')
+    functional.backup_restore(session_browser, 'mumble', 'test_mumble')
+    assert functional.service_is_running(session_browser, 'mumble')