text: """Unit tests for simple items."""
  
  from gaphas import View
  
  from gaphor.diagram.general.simpleitem import Ellipse, Line
  from gaphor.tests import TestCase
  
  
  class SimpleItemTestCase(TestCase):
      def setUp(self):
          super().setUp()
          self.view = View(self.diagram.canvas)
  
      def test_line(self):
          """
          """
          self.diagram.create(Line)
  
      def test_box(self):
          """
          """
          self.diagram.create(Line)
  
      def test_ellipse(self):
          """
          """
          self.diagram.create(Ellipse)
  