text: from .helper import PillowTestCase, hopper
  
  from PIL import Image
  
  import os
  
  
  class TestImageLoad(PillowTestCase):
  
      def test_sanity(self):
  
          im = hopper()
  
          pix = im.load()
  
          self.assertEqual(pix[0, 0], (20, 20, 70))
  
      def test_close(self):
          im = Image.open("Tests/images/hopper.gif")
          im.close()
          self.assertRaises(ValueError, im.load)
          self.assertRaises(ValueError, im.getpixel, (0, 0))
  
      def test_contextmanager(self):
          fn = None
          with Image.open("Tests/images/hopper.gif") as im:
              fn = im.fp.fileno()
              os.fstat(fn)
  
          self.assertRaises(OSError, os.fstat, fn)
  
      def test_contextmanager_non_exclusive_fp(self):
          with open("Tests/images/hopper.gif", "rb") as fp:
              with Image.open(fp):
                  pass
  
              self.assertFalse(fp.closed)
  