feat: ensure board group deletion also removes associated board group memory

backend/tests/test_board_groups_delete.py

@@ -0,0 +1,43 @@
+from __future__ import annotations
+
+from dataclasses import dataclass, field
+from types import SimpleNamespace
+from typing import Any
+from uuid import uuid4
+
+import pytest
+
+from app.api import board_groups
+
+
+@dataclass
+class _FakeSession:
+    executed: list[Any] = field(default_factory=list)
+    committed: int = 0
+
+    async def execute(self, statement: Any) -> None:
+        self.executed.append(statement)
+
+    async def commit(self) -> None:
+        self.committed += 1
+
+
+@pytest.mark.asyncio
+async def test_delete_board_group_cleans_group_memory_first(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    group_id = uuid4()
+
+    async def _fake_require_group_access(*_args: Any, **_kwargs: Any) -> None:
+        return None
+
+    monkeypatch.setattr(board_groups, "_require_group_access", _fake_require_group_access)
+
+    session = _FakeSession()
+    ctx = SimpleNamespace(member=object())
+
+    await board_groups.delete_board_group(group_id=group_id, session=session, ctx=ctx)
+
+    statement_tables = [statement.table.name for statement in session.executed]
+    assert statement_tables == ["boards", "board_group_memory", "board_groups"]
+    assert session.committed == 1