feat(admin): expand exchange admin and unify admin UX

tests/apps/registers/test_admin.py

@@ -46,8 +46,8 @@ class RegistersAdminTest(TestCase):
         self.factory = RequestFactory()
         self.user = UserFactory.create_superuser()
 
-    def _request(self):
-        request = self.factory.get("/admin/registers/registerupload/upload-excel/")
+    def _request(self, path="/admin/registers/registerupload/upload-excel/"):
+        request = self.factory.get(path)
         request.user = self.user
         request.session = {}
         request._messages = FallbackStorage(request)
@@ -78,6 +78,20 @@ class RegistersAdminTest(TestCase):
         self.assertEqual(response.status_code, 200)
         self.assertIn('type="file"', content)
         self.assertIn("mx-upload-file", content)
+        self.assertIn("multiple", content)
+
+    def test_register_upload_changelist_renders_toolbar_buttons(self):
+        admin = RegisterUploadAdmin(RegisterUpload, self.site)
+        response = admin.changelist_view(
+            self._request("/admin/registers/registerupload/")
+        )
+        response.render()
+        content = response.content.decode("utf-8")
+
+        self.assertEqual(response.status_code, 200)
+        self.assertIn("Загрузить справочники из Excel", content)
+        self.assertIn("Добавить загрузку реестра", content)
+        self.assertIn("mx-admin-action-bar", content)
 
     def test_register_upload_admin_upload_excel_success(self):
         admin = RegisterUploadAdmin(RegisterUpload, self.site)
@@ -144,3 +158,38 @@ class RegistersAdminTest(TestCase):
 
         self.assertEqual(response.status_code, 302)
         sync_mock.assert_called_once()
+
+    def test_register_upload_admin_processes_multiple_files(self):
+        admin = RegisterUploadAdmin(RegisterUpload, self.site)
+        registry = RegisterFactory()
+        first_upload = _build_register_excel_upload("registry_1.xlsx")
+        second_upload = _build_register_excel_upload("registry_2.xlsx")
+        request = self._post_request(
+            {
+                "registry": str(registry.id),
+                "actual_date": "2026-03-20",
+                "files": [first_upload, second_upload],
+            }
+        )
+
+        with patch(
+            "apps.registers.admin.RegisterImportService.sync_registry_memberships",
+            side_effect=[
+                {
+                    "registry_name": registry.name,
+                    "rows_in_file": 1,
+                    "organizations_created": 1,
+                    "organizations_updated": 0,
+                },
+                {
+                    "registry_name": registry.name,
+                    "rows_in_file": 1,
+                    "organizations_created": 0,
+                    "organizations_updated": 1,
+                },
+            ],
+        ) as sync_mock:
+            response = admin.upload_excel_view(request)
+
+        self.assertEqual(response.status_code, 302)
+        self.assertEqual(sync_mock.call_count, 2)