def test_get_session_id_for_client_not_there():
manager = SessionManager()
manager.get_sessions_list = MagicMock(return_value=[])
id = manager.get_session_id_for_client("name")
assert id is None
def test_get_session_id_for_client():
manager = SessionManager()
manager.get_sessions_list = MagicMock(return_value=["name"])
manager._sessions["name"] = MagicMock()
id = manager.get_session_id_for_client("name")
assert id is not None
def test_client_names_returned():
client = MagicMock()
manager = SessionManager()
manager.add_session("name0", client)
manager.add_session("name1", client)
assert_equals({"name0", "name1"}, set(manager.get_sessions_list()))