from unittest.mock import MagicMock
from GramAddict.core.q_nav_graph import QNavGraph

mock_device = MagicMock()
mock_device._get_current_app.return_value = "com.android.vending"

mock_engine = MagicMock()
mock_engine.find_best_node.return_value = {"x": 50, "y": 50, "semantic_string": "fake profile link", "source": "vlm"}

nav_graph = QNavGraph(mock_device)
print(nav_graph._execute_transition("tap_post_username", zero_engine=mock_engine))
print(mock_engine.find_best_node.called)