feat: add collapsible resizable navigation

netbox_utilities/tests/test_navigation_helpers.py

@@ -1,6 +1,13 @@
 from django.test import SimpleTestCase
 
-from netbox_utilities.navigation_helpers import normalize_preferences
+from netbox_utilities.navigation_helpers import (
+    SIDEBAR_WIDTH_DEFAULT,
+    SIDEBAR_WIDTH_MAX,
+    SIDEBAR_WIDTH_MIN,
+    normalize_preferences,
+    normalize_sidebar_width,
+    update_sidebar_layout,
+)
 
 
 class NormalizePreferencesTest(SimpleTestCase):
@@ -19,3 +26,29 @@ class NormalizePreferencesTest(SimpleTestCase):
 
         self.assertEqual(order, ["devices", "vpn"])
         self.assertEqual(hidden, [])
+
+
+class SidebarLayoutTest(SimpleTestCase):
+    def test_normalizes_width_to_supported_steps(self):
+        self.assertEqual(normalize_sidebar_width(None), SIDEBAR_WIDTH_DEFAULT)
+        self.assertEqual(normalize_sidebar_width(100), SIDEBAR_WIDTH_MIN)
+        self.assertEqual(normalize_sidebar_width(500), SIDEBAR_WIDTH_MAX)
+        self.assertEqual(normalize_sidebar_width(300), 312)
+
+    def test_toggles_icon_only_mode(self):
+        collapsed, width = update_sidebar_layout(False, SIDEBAR_WIDTH_DEFAULT, "toggle")
+
+        self.assertTrue(collapsed)
+        self.assertEqual(width, SIDEBAR_WIDTH_DEFAULT)
+
+    def test_resizes_within_limits(self):
+        self.assertEqual(update_sidebar_layout(False, SIDEBAR_WIDTH_MIN, "smaller")[1], SIDEBAR_WIDTH_MIN)
+        self.assertEqual(update_sidebar_layout(False, SIDEBAR_WIDTH_MAX, "larger")[1], SIDEBAR_WIDTH_MAX)
+        self.assertLess(
+            update_sidebar_layout(False, SIDEBAR_WIDTH_DEFAULT, "smaller")[1],
+            SIDEBAR_WIDTH_DEFAULT,
+        )
+
+    def test_rejects_unknown_action(self):
+        with self.assertRaisesMessage(ValueError, "Unbekannte Navigationsaktion"):
+            update_sidebar_layout(False, SIDEBAR_WIDTH_DEFAULT, "invalid")

netbox_utilities/tests/test_navigation_views.py

@@ -0,0 +1,37 @@
+import json
+from unittest.mock import MagicMock, patch
+
+from django.test import RequestFactory, SimpleTestCase
+
+from netbox_utilities.views import NavigationLayoutView
+
+
+class NavigationLayoutViewTest(SimpleTestCase):
+    def setUp(self):
+        self.factory = RequestFactory()
+
+    @patch("netbox_utilities.views.navigation_customization_enabled", return_value=True)
+    @patch("netbox_utilities.views.NavigationPreference.objects.get_or_create")
+    def test_toggles_and_persists_icon_mode(self, get_or_create, _feature_enabled):
+        preference = MagicMock(sidebar_collapsed=False, sidebar_width=288)
+        get_or_create.return_value = (preference, False)
+        request = self.factory.post("/plugins/utilities/navigation/layout/", {"action": "toggle"})
+        request.user = MagicMock()
+
+        response = NavigationLayoutView().post(request)
+
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(json.loads(response.content), {"collapsed": True, "width": 288})
+        self.assertTrue(preference.sidebar_collapsed)
+        preference.save.assert_called_once_with(update_fields=("sidebar_collapsed", "sidebar_width", "updated"))
+
+    @patch("netbox_utilities.views.navigation_customization_enabled", return_value=True)
+    @patch("netbox_utilities.views.NavigationPreference.objects.get_or_create")
+    def test_rejects_unknown_layout_action(self, get_or_create, _feature_enabled):
+        get_or_create.return_value = (MagicMock(sidebar_collapsed=False, sidebar_width=288), False)
+        request = self.factory.post("/plugins/utilities/navigation/layout/", {"action": "unknown"})
+        request.user = MagicMock()
+
+        response = NavigationLayoutView().post(request)
+
+        self.assertEqual(response.status_code, 400)