Pillow/Tests/test_file_sun.py

48 lines
1.6 KiB
Python

import os
import unittest
from PIL import Image, SunImagePlugin
from .helper import PillowTestCase, assert_image_equal, assert_image_similar, hopper
EXTRA_DIR = "Tests/images/sunraster"
class TestFileSun(PillowTestCase):
def test_sanity(self):
# Arrange
# Created with ImageMagick: convert hopper.jpg hopper.ras
test_file = "Tests/images/hopper.ras"
# Act
with Image.open(test_file) as im:
# Assert
self.assertEqual(im.size, (128, 128))
assert_image_similar(im, hopper(), 5) # visually verified
invalid_file = "Tests/images/flower.jpg"
self.assertRaises(SyntaxError, SunImagePlugin.SunImageFile, invalid_file)
def test_im1(self):
with Image.open("Tests/images/sunraster.im1") as im:
with Image.open("Tests/images/sunraster.im1.png") as target:
assert_image_equal(im, target)
@unittest.skipUnless(os.path.exists(EXTRA_DIR), "Extra image files not installed")
def test_others(self):
files = (
os.path.join(EXTRA_DIR, f)
for f in os.listdir(EXTRA_DIR)
if os.path.splitext(f)[1] in (".sun", ".SUN", ".ras")
)
for path in files:
with Image.open(path) as im:
im.load()
self.assertIsInstance(im, SunImagePlugin.SunImageFile)
target_path = "%s.png" % os.path.splitext(path)[0]
# im.save(target_file)
with Image.open(target_path) as target:
assert_image_equal(im, target)