From 1d6f6ffa109d0faa29047ddcf9be979676b71826 Mon Sep 17 00:00:00 2001 From: wiredfool Date: Tue, 5 Nov 2013 20:59:57 -0800 Subject: [PATCH] error test for bw compression on RGB file --- Tests/test_file_libtiff.py | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Tests/test_file_libtiff.py b/Tests/test_file_libtiff.py index 848b2f584..843d98896 100644 --- a/Tests/test_file_libtiff.py +++ b/Tests/test_file_libtiff.py @@ -212,3 +212,11 @@ def test_cmyk_save(): im.save(out, compression='tiff_adobe_deflate') im2 = Image.open(out) assert_image_equal(im, im2) + +def test_bw_compression_wRGB(): + im = lena('RGB') + out = tempfile('temp.tif') + + assert_exception(IOError, lambda: im.save(out, compression='tiff_ccitt')) + assert_exception(IOError, lambda: im.save(out, compression='group3')) + assert_exception(IOError, lambda: im.save(out, compression='group4'))