feat(restruct tests):

tests/unit/test_cache_config.py

@@ -0,0 +1,25 @@
+import os
+from pathlib import Path
+
+from agentic_security.cache_config import ensure_cache_dir
+
+
+def test_ensure_cache_dir_creates_dir_and_sets_env(tmp_path, monkeypatch):
+    monkeypatch.delenv("DISK_CACHE_DIR", raising=False)
+    target_dir = tmp_path / "cache_to_disk"
+
+    resolved = ensure_cache_dir(target_dir)
+
+    assert resolved == target_dir
+    assert resolved.is_dir()
+    assert Path(os.environ["DISK_CACHE_DIR"]) == resolved
+
+
+def test_ensure_cache_dir_respects_existing_env(tmp_path, monkeypatch):
+    env_dir = tmp_path / "preconfigured"
+    monkeypatch.setenv("DISK_CACHE_DIR", str(env_dir))
+
+    resolved = ensure_cache_dir()
+
+    assert resolved == env_dir
+    assert resolved.exists()