chore: initialize project repository

tests/unit/infrastructure/test_memory_cache.py

@@ -0,0 +1,23 @@
+import pytest
+
+from app.infrastructure.memory_cache import MemoryCacheAdapter
+
+
+class FailingCache:
+    async def get(self, key: str) -> str:
+        raise ConnectionError("redis unavailable")
+
+    async def set(self, key: str, value: str, ex: int | None = None) -> None:
+        raise ConnectionError("redis unavailable")
+
+
+@pytest.mark.asyncio
+async def test_cache_read_degrades_without_raising() -> None:
+    result = await MemoryCacheAdapter(FailingCache()).get("memory:1")
+    assert result.value is None
+    assert result.degraded is True
+
+
+@pytest.mark.asyncio
+async def test_cache_write_failure_does_not_block_primary_store() -> None:
+    assert not await MemoryCacheAdapter(FailingCache()).set("memory:1", "value")