old_contents: # -*- coding: utf-8 -*-
  # Copyright (c) 2015, Vispy Development Team.
  # Distributed under the (new) BSD License. See LICENSE.txt for more info.
  
  import numpy as np
  
  from vispy.visuals.line.arrow import ARROW_TYPES
  from vispy.scene import visuals, transforms
  from vispy.testing import (requires_application, TestingCanvas,
                             run_tests_if_main, raises)
  from vispy.testing.image_tester import assert_image_approved
  
  @requires_application()
  def test_line_draw():
      """Test drawing arrows without transforms"""
  
      vertices = np.array([
          [25, 25],
          [25, 75],
          [50, 25],
          [50, 75],
          [75, 25],
          [75, 75]
      ]).astype('f32')
  
      arrows = np.array([
          vertices[:2],
          vertices[3:1:-1],
          vertices[4:],
          vertices[-1:-3:-1]
      ]).reshape((4, 4))
  
      with TestingCanvas() as c:
          for arrow_type in ARROW_TYPES:
              arrow = visuals.Arrow(pos=vertices, arrow_type=arrow_type,
                                    arrows=arrows, arrow_size=10, color='red',
                                    connect="segments", parent=c.scene)
  
              assert_image_approved(c.render(), 'visuals/arrow_type_%s.png' %
                                    arrow_type)
  
              arrow.parent = None
  
  run_tests_if_main()
  
  
new_contents: # -*- coding: utf-8 -*-
  # Copyright (c) 2015, Vispy Development Team.
  # Distributed under the (new) BSD License. See LICENSE.txt for more info.
  
  import numpy as np
  
  from vispy.visuals.line.arrow import ARROW_TYPES
  from vispy.scene import visuals, transforms
  from vispy.testing import (requires_application, TestingCanvas,
                             run_tests_if_main, raises)
  from vispy.testing.image_tester import assert_image_approved
  
  @requires_application()
  def test_line_draw():
      """Test drawing arrows without transforms"""
  
      vertices = np.array([
          [25, 25],
          [25, 75],
          [50, 25],
          [50, 75],
          [75, 25],
          [75, 75]
      ]).astype('f32')
  
      vertices += 0.33
  
      arrows = np.array([
          vertices[:2],
          vertices[3:1:-1],
          vertices[4:],
          vertices[-1:-3:-1]
      ]).reshape((4, 4))
  
      with TestingCanvas() as c:
          for arrow_type in ARROW_TYPES:
              arrow = visuals.Arrow(pos=vertices, arrow_type=arrow_type,
                                    arrows=arrows, arrow_size=10, color='red',
                                    connect="segments", parent=c.scene)
  
              assert_image_approved(c.render(), 'visuals/arrow_type_%s.png' %
                                    arrow_type)
  
              arrow.parent = None
  
  run_tests_if_main()
  
  
subject: Add 0.33 to the vertices to prevent misalignment