관리자 빈 화면 진단 로그 추가

apps/api/app/test_client_diagnostics.py

@@ -0,0 +1,56 @@
+"""Client diagnostics telemetry tests."""
+
+from __future__ import annotations
+
+import unittest
+from types import SimpleNamespace
+
+from .routes import client_diagnostics
+
+
+class ClientDiagnosticsTest(unittest.IsolatedAsyncioTestCase):
+    async def test_client_diagnostic_logs_safe_structural_payload(self) -> None:
+        payload = client_diagnostics.ClientDiagnosticRequest(
+            reason="watchdog",
+            path="/admin/users",
+            href="https://vignette.chanpaca.net/admin/users",
+            asset="index-R5KK7hZI.js",
+            elapsed_ms=3510,
+            body_text_length=0,
+            root_text_length=0,
+            root_child_count=1,
+            visible_nodes=0,
+            document_ready_state="complete",
+            viewport="1920x1080",
+            user_agent="Playwright",
+            errors=[
+                client_diagnostics.ClientDiagnosticError(
+                    kind="unhandledrejection",
+                    detail="Cannot read properties of null",
+                    at="2026-07-03T00:00:00.000Z",
+                )
+            ],
+        )
+        request = SimpleNamespace(
+            client=SimpleNamespace(host="127.0.0.1"),
+            headers={
+                "origin": "https://vignette.chanpaca.net",
+                "referer": "https://vignette.chanpaca.net/admin/users",
+                "cf-ray": "test-ray",
+            },
+        )
+
+        with self.assertLogs("vignette.client_diagnostics", level="WARNING") as logs:
+            result = await client_diagnostics.record_client_diagnostic(payload, request)
+
+        joined = "\n".join(logs.output)
+        self.assertEqual(result, {"ok": True})
+        self.assertIn("client_diagnostic", joined)
+        self.assertIn("/admin/users", joined)
+        self.assertIn("body_text_length", joined)
+        self.assertIn("Cannot read properties of null", joined)
+        self.assertNotIn("body_text=", joined)
+
+
+if __name__ == "__main__":
+    unittest.main()