Persist last used fingerprint

src/tests/test_last_used_fingerprint.py

@@ -0,0 +1,60 @@
+import importlib
+from pathlib import Path
+from tempfile import TemporaryDirectory
+
+import constants
+import password_manager.manager as manager_module
+from utils.fingerprint_manager import FingerprintManager
+from password_manager.manager import EncryptionMode
+
+from helpers import TEST_SEED
+
+
+def test_last_used_fingerprint(monkeypatch):
+    with TemporaryDirectory() as tmpdir:
+        tmp_path = Path(tmpdir)
+        monkeypatch.setattr(Path, "home", lambda: tmp_path)
+
+        importlib.reload(constants)
+        importlib.reload(manager_module)
+
+        fm = FingerprintManager(constants.APP_DIR)
+        fp = fm.add_fingerprint(TEST_SEED)
+        assert fm.current_fingerprint == fp
+
+        # Ensure persistence on reload
+        fm2 = FingerprintManager(constants.APP_DIR)
+        assert fm2.current_fingerprint == fp
+
+        def init_fm(self):
+            self.fingerprint_manager = fm2
+
+        monkeypatch.setattr(
+            manager_module.PasswordManager, "initialize_fingerprint_manager", init_fm
+        )
+        monkeypatch.setattr(
+            manager_module.PasswordManager,
+            "setup_encryption_manager",
+            lambda *a, **k: True,
+        )
+        monkeypatch.setattr(
+            manager_module.PasswordManager, "initialize_bip85", lambda self: None
+        )
+        monkeypatch.setattr(
+            manager_module.PasswordManager, "initialize_managers", lambda self: None
+        )
+        monkeypatch.setattr(
+            manager_module.PasswordManager,
+            "sync_index_from_nostr_if_missing",
+            lambda self: None,
+        )
+        monkeypatch.setattr(
+            manager_module.PasswordManager, "verify_password", lambda *a, **k: True
+        )
+        monkeypatch.setattr(
+            "builtins.input",
+            lambda *a, **k: (_ for _ in ()).throw(AssertionError("prompted")),
+        )
+
+        pm = manager_module.PasswordManager()
+        assert pm.current_fingerprint == fp