'Check widget\'s scorer after disconnecting scorer on the input'

def test_input_scorer_disconnect(self):

    self.send_signal(self.widget.Inputs.scorer, self.log_reg, 1)
    self.assertEqual(len(self.widget.learners), 1)
    self.send_signal(self.widget.Inputs.scorer, None, 1)
    self.assertEqual(self.widget.learners, {})
