'Check scores on the output after apply'

def test_output_scores(self):

    self.send_signal(self.widget.Inputs.data, self.iris)
    output = self.get_output(self.widget.Outputs.scores)
    self.assertIsInstance(output, Table)
    self.assertEqual(output.X.shape, (len(self.iris.domain.attributes), 2))
    self.send_signal(self.widget.Inputs.data, None)
    self.assertIsNone(self.get_output(self.widget.Outputs.scores))
