Sanity test for SunImagePlugin.py

Tests/test_file_sun.py

@@ -0,0 +1,23 @@
+from helper import unittest, PillowTestCase
+
+from PIL import Image
+
+
+class TestFileSun(PillowTestCase):
+
+    def test_sanity(self):
+        # Arrange
+        # Created with ImageMagick: convert lena.ppm lena.ras
+        test_file = "Tests/images/lena.ras"
+
+        # Act
+        im = Image.open(test_file)
+
+        # Assert
+        self.assertEqual(im.size, (128, 128))
+
+
+if __name__ == '__main__':
+    unittest.main()
+
+# End of file