'check whether added field in model is accessible from children models (_inherits)'

def test_10_access_from_child_to_parent_model(self):

    mother = self.env['test.inherit.mother']
    daughter = self.env['test.inherit.daughter']
    self.assertIn('field_in_mother', mother._fields)
    self.assertIn('field_in_mother', daughter._fields)
