Add notification tracking and tests

src/tests/test_manager_current_notification.py

@@ -0,0 +1,45 @@
+import queue
+
+from pathlib import Path
+import sys
+
+sys.path.append(str(Path(__file__).resolve().parents[1]))
+
+from password_manager.manager import PasswordManager, Notification
+from constants import NOTIFICATION_DURATION
+
+
+def _make_pm():
+    pm = PasswordManager.__new__(PasswordManager)
+    pm.notifications = queue.Queue()
+    pm._current_notification = None
+    pm._notification_expiry = 0.0
+    return pm
+
+
+def test_notify_sets_current(monkeypatch):
+    pm = _make_pm()
+    current = {"val": 100.0}
+    monkeypatch.setattr("password_manager.manager.time.time", lambda: current["val"])
+    pm.notify("hello")
+    note = pm._current_notification
+    assert isinstance(note, Notification)
+    assert note.message == "hello"
+    assert pm._notification_expiry == 100.0 + NOTIFICATION_DURATION
+    assert pm.notifications.qsize() == 1
+
+
+def test_get_current_notification_ttl(monkeypatch):
+    pm = _make_pm()
+    now = {"val": 0.0}
+    monkeypatch.setattr("password_manager.manager.time.time", lambda: now["val"])
+    pm.notify("note1")
+
+    assert pm.get_current_notification().message == "note1"
+    assert pm.notifications.qsize() == 1
+
+    now["val"] += NOTIFICATION_DURATION - 1
+    assert pm.get_current_notification().message == "note1"
+
+    now["val"] += 2
+    assert pm.get_current_notification() is None