Squash Odysseus development history

tests/test_editor_draft_payload.py

@@ -2,6 +2,9 @@ import sys
 import types
 from unittest.mock import MagicMock
 
+import pytest
+from fastapi import HTTPException
+
 
 def _load_module(monkeypatch):
     db_stub = types.ModuleType("core.database")
@@ -22,3 +25,13 @@ def test_load_payload_rejects_non_object_json(monkeypatch):
     assert mod._load_payload('"draft"') == {}
     assert mod._load_payload("{bad json") == {}
     assert mod._load_payload('{"layers": []}') == {"layers": []}
+
+
+def test_dump_payload_enforces_configured_byte_limit(monkeypatch):
+    mod = _load_module(monkeypatch)
+    monkeypatch.setattr(mod, "EDITOR_DRAFT_MAX_BYTES", 32)
+
+    assert mod._dump_payload({"layers": []}) == '{"layers":[]}'
+    with pytest.raises(HTTPException) as exc:
+        mod._dump_payload({"pixels": "x" * 40})
+    assert exc.value.status_code == 413