'More than one target variable can be moved to a box for target variables
at the same time and moved back as well.
GH-2100
GH-2086'

def test_multiple_target_variable(self):

    iris = Table('iris')
    self.send_signal(self.widget.Inputs.data, iris)
    self.assertVariableCountsEqual(available=0, used=4, classattrs=1)
    self.widget.move_class_button.click()
    self.assertVariableCountsEqual(available=0, used=4, classattrs=1)
    self.widget.used_attrs_view.selectAll()
    self.widget.move_selected(self.widget.used_attrs_view)
    self.assertVariableCountsEqual(available=4, used=0, classattrs=1)
    self.widget.available_attrs_view.selectAll()
    self.widget.move_selected(self.widget.class_attrs_view)
    self.assertVariableCountsEqual(available=0, used=0, classattrs=5)
