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WMF/EMF: Compare to reference PNG rendering

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This commit is contained in:
aagaidiu 2016-11-25 15:45:41 -08:00
parent c7faca7e0f
commit b06103acc7
1 changed files with 14 additions and 2 deletions
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16
Tests/test_file_wmf.py
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@ -1,9 +1,21 @@
from helper import unittest, PillowTestCase
from PIL import Image
from io import BytesIO
class TestFileWmf(PillowTestCase):
def as_png(self, im):
# Pass the image through PNG save/load
out = BytesIO()
im.save(out, "PNG")
test_bytes = out.tell()
out.seek(0)
im = Image.open(out)
im.bytes = test_bytes # for testing only
im.load()
return im
def test_load_raw(self):
# Test basic EMF open and rendering
@ -14,7 +26,7 @@ class TestFileWmf(PillowTestCase):
# Compare to reference rendering
imref = Image.open('Tests/images/drawing_emf_ref.png')
imref.load()
self.assert_image_equal(im, imref)
self.assert_image_equal(self.as_png(im), imref)
# Test basic WMF open and rendering
im = Image.open('Tests/images/drawing.wmf')
@ -24,7 +36,7 @@ class TestFileWmf(PillowTestCase):
# Compare to reference rendering
imref = Image.open('Tests/images/drawing_wmf_ref.png')
imref.load()
self.assert_image_equal(im, imref)
self.assert_image_equal(self.as_png(im), imref)
if __name__ == '__main__':