def test_invoke_for_report(mock_report):
robot = Robot()
robot.invoke('REPORT', None)
mock_report.assert_called_once_with(robot)
def test_invoke_for_turn_right(mock_turn_right):
robot = Robot()
robot.invoke('RIGHT', None)
mock_turn_right.assert_called_once_with(robot)
def test_invoke_for_move(mock_move):
robot = Robot()
robot.invoke('MOVE', None)
mock_move.assert_called_once_with(robot)
def test_invoke_for_turn_left(mock_turn_left):
robot = Robot()
robot.invoke('LEFT', None)
mock_turn_left.assert_called_once_with(robot)
def test_invoke_for_place(mock_place):
robot = Robot()
robot.invoke('PLACE', [0, 0, 'NORTH'])
mock_place.assert_called_once_with(robot, [0, 0, 'NORTH'])
