test: check list_entries on empty index

tests/test_entries_empty.py

@@ -0,0 +1,19 @@
+import sys
+from pathlib import Path
+from tempfile import TemporaryDirectory
+from cryptography.fernet import Fernet
+
+sys.path.append(str(Path(__file__).resolve().parents[1]))
+
+from password_manager.encryption import EncryptionManager
+from password_manager.entry_management import EntryManager
+
+
+def test_list_entries_empty():
+    with TemporaryDirectory() as tmpdir:
+        key = Fernet.generate_key()
+        enc_mgr = EncryptionManager(key, Path(tmpdir))
+        entry_mgr = EntryManager(enc_mgr, Path(tmpdir))
+
+        entries = entry_mgr.list_entries()
+        assert entries == []