def test_true_2(self):
     self.assertTrue(validate_ean("9783815820865"))
 def test_true(self):
     self.assertTrue(validate_ean('4003301018398'))
 def test_false_3(self):
     self.assertFalse(validate_ean("9783815820864"))
 def test_false_2(self):
     self.assertFalse(validate_ean('4003301018392'))
 def test_false(self):
     self.assertFalse(validate_ean("0000000000010"))
 def test_true_3(self):
     self.assertTrue(validate_ean("9783827317100"))