First commit

tests/unit/test_cache.py

@@ -0,0 +1,19 @@
+import asyncio
+import pytest
+from agent_framework.cache.cache import InMemoryCache, DistributedCache
+
+@pytest.mark.asyncio
+async def test_in_memory_cache_ttl_expires():
+    cache = InMemoryCache()
+    await cache.set('k', {'v': 1}, ttl_seconds=1)
+    assert await cache.get('k') == {'v': 1}
+    await asyncio.sleep(1.05)
+    assert await cache.get('k') is None
+
+@pytest.mark.asyncio
+async def test_distributed_cache_promotes_l2_to_l1():
+    l1, l2 = InMemoryCache(), InMemoryCache()
+    cache = DistributedCache(l1, l2)
+    await l2.set('x', 'from-l2')
+    assert await cache.get('x') == 'from-l2'
+    assert await l1.get('x') == 'from-l2'