Pillow/Tests/test_file_sun.py

from helper import unittest, PillowTestCase, hopper

from PIL import Image, SunImagePlugin


class TestFileSun(PillowTestCase):

    def test_sanity(self):
        # Arrange
        # Created with ImageMagick: convert hopper.jpg hopper.ras
        test_file = "Tests/images/hopper.ras"

        # Act
        im = Image.open(test_file)

        # Assert
        self.assertEqual(im.size, (128, 128))

        self.assert_image_similar(im, hopper(), 5) # visually verified
        
        invalid_file = "Tests/images/flower.jpg"
        self.assertRaises(SyntaxError,
                          lambda: SunImagePlugin.SunImageFile(invalid_file))

    def test_im1(self):
        im = Image.open('Tests/images/sunraster.im1')
        target = Image.open('Tests/images/sunraster.im1.png')
        self.assert_image_equal(im, target)
        
if __name__ == '__main__':
    unittest.main()