code: def test_ellipse_draw():
      """Test drawing transformed ellipses using EllipseVisual"""
      with TestingCanvas() as c:
          ellipse = visuals.Ellipse(
              center=(0.0, 0.0),
              radius=(20, 15),
              color=(0, 0, 1, 1),
              parent=c.scene,
          )
          ellipse.transform = transforms.STTransform(
              scale=(2.0, 3.0), translate=(50, 50)
          )
          assert_image_approved(c.render(), "visuals/ellipse1.png")
  
          ellipse.parent = None
          ellipse = visuals.Ellipse(
              center=(0.0, 0.0),
              radius=(20, 15),
              color=(0, 0, 1, 1),
              border_color=(1, 0, 0, 1),
              parent=c.scene,
          )
          ellipse.transform = transforms.STTransform(
              scale=(2.0, 3.0), translate=(50, 50)
          )
          assert_image_approved(c.render(), "visuals/ellipse2.png")
  
          ellipse.parent = None
          ellipse = visuals.Ellipse(
              center=(0.0, 0.0),
              radius=(20, 15),
              border_color=(1, 0, 0, 1),
              parent=c.scene,
          )
          ellipse.transform = transforms.STTransform(
              scale=(2.0, 3.0), translate=(50, 50)
          )
          assert_image_approved(
              c.render(), "visuals/ellipse3.png", min_corr=0.7
          )
  
imports: from vispy.scene import visuals, transforms
  from vispy.testing import requires_application, TestingCanvas, run_tests_if_main
  from vispy.testing.image_tester import assert_image_approved
label_desc: Use image node_id 2 for calling a global function with example usage: test_ellipse_draw() without return types