diff --git a/tests/unit_tests/core/security/auth_cache/test_auth_cache_integration.py b/tests/unit_tests/core/security/auth_cache/test_auth_cache_integration.py
new file mode 100644
index 000000000..76d06185e
--- /dev/null
+++ b/tests/unit_tests/core/security/auth_cache/test_auth_cache_integration.py
@@ -0,0 +1,153 @@
+import asyncio
+
+import pytest
+from authlib.integrations.starlette_client import OAuth
+
+from mealie.routes.auth.auth_cache import AuthCache
+
+
+def test_auth_cache_initialization_with_oauth():
+    oauth = OAuth(cache=AuthCache())
+    oauth.register(
+        "test_oidc",
+        client_id="test_client_id",
+        client_secret="test_client_secret",
+        server_metadata_url="https://example.com/.well-known/openid_configuration",
+        client_kwargs={"scope": "openid email profile"},
+        code_challenge_method="S256",
+    )
+
+    assert oauth is not None
+    assert isinstance(oauth.cache, AuthCache)
+    assert "test_oidc" in oauth._clients
+
+
+@pytest.mark.asyncio
+async def test_oauth_cache_operations():
+    cache = AuthCache(threshold=500, default_timeout=300)
+    cache_key = "oauth_state_12345"
+    oauth_data = {
+        "state": "12345",
+        "code_verifier": "dBjftJeZ4CVP-mB92K27uhbUJU1p1r_wW1gFWFOEjXk",
+        "redirect_uri": "http://localhost:3000/login",
+    }
+
+    result = await cache.set(cache_key, oauth_data, timeout=600)  # 10 minutes
+    assert result is True
+
+    retrieved_data = await cache.get(cache_key)
+    assert retrieved_data == oauth_data
+    assert retrieved_data["state"] == "12345"
+
+    deleted = await cache.delete(cache_key)
+    assert deleted is True
+    assert await cache.get(cache_key) is None
+
+
+@pytest.mark.asyncio
+async def test_oauth_cache_handles_token_expiration():
+    cache = AuthCache()
+    token_key = "access_token_user123"
+    token_data = {
+        "access_token": "eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiJ9...",
+        "token_type": "Bearer",
+        "expires_in": 3600,
+        "scope": "openid email profile",
+    }
+
+    await cache.set(token_key, token_data, timeout=0.1)
+    assert await cache.has(token_key) is True
+
+    await asyncio.sleep(0.15)
+    assert await cache.has(token_key) is False
+    assert await cache.get(token_key) is None
+
+
+@pytest.mark.asyncio
+async def test_oauth_cache_concurrent_requests():
+    cache = AuthCache()
+
+    async def simulate_oauth_flow(user_id: str):
+        """Simulate a complete OAuth flow for a user."""
+        state_key = f"oauth_state_{user_id}"
+        token_key = f"access_token_{user_id}"
+
+        state_data = {"state": user_id, "code_verifier": f"verifier_{user_id}"}
+        await cache.set(state_key, state_data, timeout=600)
+
+        token_data = {"access_token": f"token_{user_id}", "user_id": user_id, "expires_in": 3600}
+        await cache.set(token_key, token_data, timeout=3600)
+
+        state = await cache.get(state_key)
+        token = await cache.get(token_key)
+
+        return state, token
+
+    results = await asyncio.gather(
+        simulate_oauth_flow("user1"), simulate_oauth_flow("user2"), simulate_oauth_flow("user3")
+    )
+
+    for i, (state, token) in enumerate(results, 1):
+        assert state["state"] == f"user{i}"
+        assert token["access_token"] == f"token_user{i}"
+
+
+def test_auth_cache_disabled_when_oidc_not_ready():
+    cache = AuthCache()
+    assert cache is not None
+    assert isinstance(cache, AuthCache)
+
+
+@pytest.mark.asyncio
+async def test_auth_cache_memory_efficiency():
+    cache = AuthCache(threshold=10, default_timeout=300)
+    for i in range(50):
+        await cache.set(f"token_{i}", f"data_{i}", timeout=0)  # Never expire
+
+    assert len(cache._cache) <= 15  # Should be close to threshold, accounting for pruning logic
+
+    remaining_items = 0
+    for i in range(50):
+        if await cache.has(f"token_{i}"):
+            remaining_items += 1
+
+    assert 0 < remaining_items < 50
+
+
+@pytest.mark.asyncio
+async def test_auth_cache_with_real_oauth_data_structure():
+    cache = AuthCache()
+    oauth_token = {
+        "access_token": "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCIsImtpZCI6IjEifQ...",
+        "id_token": "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCIsImtpZCI6IjEifQ...",
+        "token_type": "Bearer",
+        "expires_in": 3600,
+        "scope": "openid email profile groups",
+        "userinfo": {
+            "sub": "auth0|507f1f77bcf86cd799439011",
+            "email": "john.doe@example.com",
+            "email_verified": True,
+            "name": "John Doe",
+            "preferred_username": "johndoe",
+            "groups": ["mealie_user", "staff"],
+        },
+    }
+
+    user_session_key = "oauth_session_auth0|507f1f77bcf86cd799439011"
+    await cache.set(user_session_key, oauth_token, timeout=3600)
+
+    retrieved = await cache.get(user_session_key)
+    assert retrieved["access_token"] == oauth_token["access_token"]
+    assert retrieved["userinfo"]["email"] == "john.doe@example.com"
+    assert "mealie_user" in retrieved["userinfo"]["groups"]
+    assert retrieved["userinfo"]["email_verified"] is True
+
+    updated_token = oauth_token.copy()
+    updated_token["access_token"] = "new_access_token_eyJhbGciOiJSUzI1NiIs..."
+    updated_token["userinfo"]["last_login"] = "2024-01-01T12:00:00Z"
+
+    await cache.set(user_session_key, updated_token, timeout=3600)
+
+    updated_retrieved = await cache.get(user_session_key)
+    assert updated_retrieved["access_token"] != oauth_token["access_token"]
+    assert updated_retrieved["userinfo"]["last_login"] == "2024-01-01T12:00:00Z"