feat: add support for enabling/disabling the wiki app (#28889)

Currently the wiki app can't be enabled or configured. This change allows enabling/disabling the wiki app which effectively hides/shows the wiki tab.

openedx/core/djangoapps/course_apps/tests/test_wiki_app.py

@@ -0,0 +1,55 @@
+"""
+Tests for wiki course app.
+"""
+
+from common.djangoapps.student.tests.factories import AdminFactory, UserFactory
+from lms.djangoapps.course_wiki.plugins.course_app import WikiCourseApp
+from openedx.core.djangolib.testing.utils import skip_unless_cms
+from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
+from xmodule.modulestore.tests.factories import CourseFactory
+
+
+@skip_unless_cms
+class WikiCourseAppTestCase(ModuleStoreTestCase):
+    """Test cases for Wiki CourseApp."""
+
+    def setUp(self):
+        super().setUp()
+        self.course = CourseFactory.create()
+        self.instructor = AdminFactory.create()
+        self.user = UserFactory()
+
+    def get_wiki_tab(self, course_key):
+        """
+        Reload the course and fetch the wiki tab if present.
+        """
+        course = self.store.get_course(course_key)
+        return next((tab for tab in course.tabs if tab.type == 'wiki'), None)
+
+    def test_app_disabled_by_default(self):
+        """
+        Test that the wiki tab is disabled by default.
+        """
+        assert not WikiCourseApp.is_enabled(self.course.id)
+
+    def test_app_enabling(self):
+        """
+        Test that enabling and disable the app enabled/disables the tab.
+        """
+        WikiCourseApp.set_enabled(self.course.id, True, self.instructor)
+        wiki_tab = self.get_wiki_tab(self.course.id)
+        assert not wiki_tab.is_hidden
+        WikiCourseApp.set_enabled(self.course.id, False, self.instructor)
+        wiki_tab = self.get_wiki_tab(self.course.id)
+        assert wiki_tab.is_hidden
+
+    def test_app_adds_wiki(self):
+        """
+        Test that enabling the app for a course that doesn't have the wiki tab
+        adds the wiki tab.
+        """
+        self.course.tabs = [tab for tab in self.course.tabs if tab.type != 'wiki']
+        self.store.update_item(self.course, self.instructor.id)
+        assert self.get_wiki_tab(self.course.id) is None
+        WikiCourseApp.set_enabled(self.course.id, True, self.instructor)
+        assert self.get_wiki_tab(self.course.id) is not None

openedx/core/djangoapps/courseware_api/tests/test_views.py

@@ -155,7 +155,7 @@ class CourseApiTestViews(BaseCoursewareTests, MasqueradeMixin):
                 enrollment = response.data['enrollment']
                 assert enrollment_mode == enrollment['mode']
                 assert enrollment['is_active']
-                assert len(response.data['tabs']) == 6
+                assert len(response.data['tabs']) == 5
                 found = False
                 for tab in response.data['tabs']:
                     if tab['type'] == 'external_link':