Allow configuring landing page for unauthenticated users (#808)

* allow configuring landing page

* add tests

bookmarks/tests/test_root_view.py

@@ -0,0 +1,40 @@
+from django.test import TestCase
+from django.urls import reverse
+
+from bookmarks.models import GlobalSettings
+from bookmarks.tests.helpers import BookmarkFactoryMixin
+
+
+class AnonymousViewTestCase(TestCase, BookmarkFactoryMixin):
+    def test_unauthenticated_user_redirect_to_login_by_default(self):
+        response = self.client.get(reverse("bookmarks:root"))
+        self.assertRedirects(response, reverse("login"))
+
+    def test_unauthenticated_redirect_to_shared_bookmarks_if_configured_in_global_settings(
+        self,
+    ):
+        settings = GlobalSettings.get()
+        settings.landing_page = GlobalSettings.LANDING_PAGE_SHARED_BOOKMARKS
+        settings.save()
+
+        response = self.client.get(reverse("bookmarks:root"))
+        self.assertRedirects(response, reverse("bookmarks:shared"))
+
+    def test_authenticated_user_always_redirected_to_bookmarks(self):
+        self.client.force_login(self.get_or_create_test_user())
+
+        response = self.client.get(reverse("bookmarks:root"))
+        self.assertRedirects(response, reverse("bookmarks:index"))
+
+        settings = GlobalSettings.get()
+        settings.landing_page = GlobalSettings.LANDING_PAGE_SHARED_BOOKMARKS
+        settings.save()
+
+        response = self.client.get(reverse("bookmarks:root"))
+        self.assertRedirects(response, reverse("bookmarks:index"))
+
+        settings.landing_page = GlobalSettings.LANDING_PAGE_LOGIN
+        settings.save()
+
+        response = self.client.get(reverse("bookmarks:root"))
+        self.assertRedirects(response, reverse("bookmarks:index"))