def test_retina(self):
get_thumbnail(self.im, '50x50')
actions = [
# save regular resolution, same as in StorageTestCase
'open: retina.jpg',
'save: test/cache/19/10/1910dc350bbe9ee55fd9d8d3d5e38e19.jpg',
'get_available_name: test/cache/19/10/1910dc350bbe9ee55fd9d8d3d5e38e19.jpg',
'exists: test/cache/19/10/1910dc350bbe9ee55fd9d8d3d5e38e19.jpg',
# save the 1.5x resolution version
'save: test/cache/19/10/[email protected]',
'get_available_name: test/cache/19/10/[email protected]',
'exists: test/cache/19/10/[email protected]',
# save the 2x resolution version
'save: test/cache/19/10/[email protected]',
'get_available_name: test/cache/19/10/[email protected]',
'exists: test/cache/19/10/[email protected]'
]
self.assertEqual(self.log, actions)
with open(pjoin(settings.MEDIA_ROOT, 'test/cache/19/10/[email protected]')) as fp:
engine = PILEngine()
self.assertEqual(engine.get_image_size(engine.get_image(ImageFile(file_=fp))), (75, 75))
def test_retina(self):
get_thumbnail(self.im, '50x50')
actions = [
'exists: test/cache/19/10/1910dc350bbe9ee55fd9d8d3d5e38e19.jpg',
# save regular resolution, same as in StorageTestCase
'open: retina.jpg',
'save: test/cache/19/10/1910dc350bbe9ee55fd9d8d3d5e38e19.jpg',
'get_available_name: test/cache/19/10/1910dc350bbe9ee55fd9d8d3d5e38e19.jpg',
'exists: test/cache/19/10/1910dc350bbe9ee55fd9d8d3d5e38e19.jpg',
# save the 1.5x resolution version
'save: test/cache/19/10/[email protected]',
'get_available_name: test/cache/19/10/[email protected]',
'exists: test/cache/19/10/[email protected]',
# save the 2x resolution version
'save: test/cache/19/10/[email protected]',
'get_available_name: test/cache/19/10/[email protected]',
'exists: test/cache/19/10/[email protected]'
]
self.assertEqual(self.log, actions)
p = pjoin(
settings.MEDIA_ROOT,
'test/cache/19/10/[email protected]')
with open(p) as fp:
engine = PILEngine()
self.assertEqual(
engine.get_image_size(engine.get_image(ImageFile(file_=fp))),
(75, 75))
def test_retina(self):
get_thumbnail(self.image, '50x50')
actions = [
'exists: test/cache/91/bb/91bb06cf9169e4c52132bb113f2d4c0d.jpg',
# save regular resolution, same as in StorageTestCase
'open: retina.jpg',
'save: test/cache/91/bb/91bb06cf9169e4c52132bb113f2d4c0d.jpg',
'get_available_name: test/cache/91/bb/91bb06cf9169e4c52132bb113f2d4c0d.jpg',
'exists: test/cache/91/bb/91bb06cf9169e4c52132bb113f2d4c0d.jpg',
# save the 1.5x resolution version
'save: test/cache/91/bb/[email protected]',
'get_available_name: test/cache/91/bb/[email protected]',
'exists: test/cache/91/bb/[email protected]',
# save the 2x resolution version
'save: test/cache/91/bb/[email protected]',
'get_available_name: test/cache/91/bb/[email protected]',
'exists: test/cache/91/bb/[email protected]'
]
self.assertEqual(self.log, actions)
path = os.path.join(settings.MEDIA_ROOT,
'test/cache/91/bb/[email protected]')
with open(path) as fp:
engine = PILEngine()
self.assertEqual(engine.get_image_size(engine.get_image(ImageFile(file_=fp))), (75, 75))
def test_orientation(self):
ref = Image.open(pjoin(DATA_DIR, '1_topleft.jpg'))
top = ref.getpixel((14, 7))
left = ref.getpixel((7, 14))
engine = PILEngine()
def epsilon(x, y):
if isinstance(x, (tuple, list)):
x = sum(x) / len(x)
if isinstance(y, (tuple, list)):
y = sum(y) / len(y)
return abs(x - y)
data_images = ('1_topleft.jpg', '2_topright.jpg', '3_bottomright.jpg',
'4_bottomleft.jpg', '5_lefttop.jpg', '6_righttop.jpg',
'7_rightbottom.jpg', '8_leftbottom.jpg')
for name in data_images:
th = self.backend.get_thumbnail('data/%s' % name, '30x30')
im = engine.get_image(th)
self.assertLess(epsilon(top, im.getpixel((14, 7))), 10)
self.assertLess(epsilon(left, im.getpixel((7, 14))), 10)
exif = im._getexif()
if exif:
self.assertEqual(exif.get(0x0112), 1)
def test_orientation(self):
ref = Image.open(os.path.join(DATA_DIR, '1_topleft.jpg'))
top = ref.getpixel((14, 7))
left = ref.getpixel((7, 14))
engine = PILEngine()
def epsilon(x, y):
if isinstance(x, (tuple, list)):
x = sum(x) / len(x)
if isinstance(y, (tuple, list)):
y = sum(y) / len(y)
return abs(x - y)
data_images = ('1_topleft.jpg', '2_topright.jpg', '3_bottomright.jpg',
'4_bottomleft.jpg', '5_lefttop.jpg', '6_righttop.jpg',
'7_rightbottom.jpg', '8_leftbottom.jpg')
for name in data_images:
th = self.BACKEND.get_thumbnail('data/%s' % name, '30x30')
im = engine.get_image(th)
self.assertLess(epsilon(top, im.getpixel((14, 7))), 10)
self.assertLess(epsilon(left, im.getpixel((7, 14))), 10)
exif = im._getexif()
# no exif editor in GraphicsMagick
if exif and not (settings.THUMBNAIL_CONVERT.endswith('gm convert')
or 'pgmagick_engine'
in settings.THUMBNAIL_ENGINE):
self.assertEqual(exif.get(0x0112), 1)
def test_orientation(self):
ref = Image.open(pjoin(DATA_DIR, '1_topleft.jpg'))
top = ref.getpixel((14, 7))
left = ref.getpixel((7, 14))
engine = PILEngine()
def epsilon(x, y):
if isinstance(x, (tuple, list)):
x = sum(x) / len(x)
if isinstance(y, (tuple, list)):
y = sum(y) / len(y)
return abs(x - y)
data_images = (
'1_topleft.jpg',
'2_topright.jpg',
'3_bottomright.jpg',
'4_bottomleft.jpg',
'5_lefttop.jpg',
'6_righttop.jpg',
'7_rightbottom.jpg',
'8_leftbottom.jpg'
)
for name in data_images:
th = self.backend.get_thumbnail('data/%s' % name, '30x30')
im = engine.get_image(th)
self.assertLess(epsilon(top, im.getpixel((14, 7))), 10)
self.assertLess(epsilon(left, im.getpixel((7, 14))), 10)
exif = im._getexif()
if exif:
self.assertEqual(exif.get(0x0112), 1)
def test_retina(self):
get_thumbnail(self.image, '50x50')
actions = [
'exists: test/cache/91/bb/91bb06cf9169e4c52132bb113f2d4c0d.jpg',
# save regular resolution, same as in StorageTestCase
'open: retina.jpg',
'save: test/cache/91/bb/91bb06cf9169e4c52132bb113f2d4c0d.jpg',
'get_available_name: test/cache/91/bb/91bb06cf9169e4c52132bb113f2d4c0d.jpg',
'exists: test/cache/91/bb/91bb06cf9169e4c52132bb113f2d4c0d.jpg',
# save the 1.5x resolution version
'save: test/cache/91/bb/[email protected]',
'get_available_name: test/cache/91/bb/[email protected]',
'exists: test/cache/91/bb/[email protected]',
# save the 2x resolution version
'save: test/cache/91/bb/[email protected]',
'get_available_name: test/cache/91/bb/[email protected]',
'exists: test/cache/91/bb/[email protected]'
]
self.assertEqual(self.log, actions)
path = os.path.join(
settings.MEDIA_ROOT,
'test/cache/91/bb/[email protected]')
with open(path) as fp:
engine = PILEngine()
self.assertEqual(
engine.get_image_size(engine.get_image(ImageFile(file_=fp))),
(75, 75))
def test_truncated_validation(self):
"""
Test that is_valid_image returns false for a truncated image.
"""
name = 'data/broken.jpeg'
with open(name, 'rb') as broken_jpeg:
data = broken_jpeg.read()
engine = PILEngine()
self.assertFalse(engine.is_valid_image(data))
def test_smart_crop(self):
th = self.BACKEND.get_thumbnail('data/white_border.jpg',
'32x32',
crop='smart')
self.assertEqual(th.x, 32)
self.assertEqual(th.y, 32)
engine = PILEngine()
im = engine.get_image(th)
self.assertEqual(im.size[0], 32)
self.assertEqual(im.size[1], 32)
def test_truncated_validation(self):
"""
Test that is_valid_image returns false for a truncated image.
"""
name = 'data/broken.jpeg'
with open(name, 'rb') as broken_jpeg:
data = broken_jpeg.read()
engine = PILEngine()
self.assertFalse(engine.is_valid_image(data))
def _clean_image(self):
from sorl.thumbnail.engines.pil_engine import Engine
from sorl.thumbnail.images import ImageFile
e = Engine()
f = ImageFile(self.image.file)
tmp_image = e.get_image(f)
tmp_image = e._orientation(tmp_image)
new_file = StringIO()
tmp_image.save(new_file, 'jpeg')
file_content = ContentFile(new_file.getvalue())
self.image.save(self.image.name, file_content, save=False)
def test_crop_image_with_icc_profile(self):
name = 'data/icc_profile_test.jpg'
item, _ = Item.objects.get_or_create(image=name)
im = ImageFile(item.image)
th = self.BACKEND.get_thumbnail(im, '100x100')
engine = PILEngine()
self.assertEqual(
engine.get_image(im).info.get('icc_profile'),
engine.get_image(th).info.get('icc_profile'))
def test_crop_image_with_icc_profile(self):
name = 'data/icc_profile_test.jpg'
item, _ = Item.objects.get_or_create(image=name)
im = ImageFile(item.image)
th = self.BACKEND.get_thumbnail(im, '100x100')
engine = PILEngine()
self.assertEqual(
engine.get_image(im).info.get('icc_profile'),
engine.get_image(th).info.get('icc_profile')
)
def _clean_image(self):
from sorl.thumbnail.engines.pil_engine import Engine
from sorl.thumbnail.images import ImageFile
e = Engine()
f = ImageFile(self.image.file)
tmp_image = e.get_image(f)
tmp_image = e._orientation(tmp_image)
tmp_image = tmp_image.convert('RGB')
new_file = BytesIO()
tmp_image.save(new_file, 'jpeg')
file_content = ContentFile(new_file.getvalue())
self.image.save(self.image.name, file_content, save=False)
def test_orientation(self):
data_dir = pjoin(settings.MEDIA_ROOT, 'data')
shutil.copytree(settings.DATA_ROOT, data_dir)
ref = Image.open(pjoin(data_dir, '1_topleft.jpg'))
top = ref.getpixel((14, 7))
left = ref.getpixel((7, 14))
engine = PILEngine()
def epsilon(x, y):
if isinstance(x, (tuple, list)):
x = sum(x) / len(x)
if isinstance(y, (tuple, list)):
y = sum(y) / len(y)
return abs(x - y)
for name in sorted(os.listdir(data_dir)):
th = self.backend.get_thumbnail('data/%s' % name, '30x30')
im = engine.get_image(th)
self.assertLess(epsilon(top, im.getpixel((14, 7))), 10)
self.assertLess(epsilon(left, im.getpixel((7, 14))), 10)
exif = im._getexif()
if exif:
self.assertEqual(exif.get(0x0112), 1)
def test_orientation(self):
data_dir = pjoin(settings.MEDIA_ROOT, 'data')
shutil.copytree(settings.DATA_ROOT, data_dir)
ref = Image.open(pjoin(data_dir, '1_topleft.jpg'))
top = ref.getpixel((14, 7))
left = ref.getpixel((7, 14))
engine = PILEngine()
def epsilon(x, y):
if isinstance(x, (tuple, list)):
x = sum(x) / len(x)
if isinstance(y, (tuple, list)):
y = sum(y) / len(y)
return abs(x - y)
for name in sorted(os.listdir(data_dir)):
th = self.backend.get_thumbnail('data/%s' % name, '30x30')
im = engine.get_image(th)
self.assertLess(epsilon(top, im.getpixel((14, 7))), 10)
self.assertLess(epsilon(left, im.getpixel((7, 14))), 10)
exif = im._getexif()
if exif:
self.assertEqual(exif.get(0x0112), 1)
def testPortraitCrop(self):
def mean_pixel(x, y):
values = im.getpixel((x, y))
if not isinstance(values, (tuple, list)):
values = [values]
return reduce(operator.add, values) / len(values)
for crop in ("center", "88% 50%", "50px"):
th = self.backend.get_thumbnail(self.portrait, "100x100", crop=crop)
engine = PILEngine()
im = engine.get_image(th)
self.assertEqual(mean_pixel(50, 0), 255)
self.assertEqual(mean_pixel(50, 45), 255)
self.assertEqual(250 < mean_pixel(50, 49) <= 255, True)
self.assertEqual(mean_pixel(50, 55), 0)
self.assertEqual(mean_pixel(50, 99), 0)
for crop in ("top", "0%", "0px"):
th = self.backend.get_thumbnail(self.portrait, "100x100", crop=crop)
engine = PILEngine()
im = engine.get_image(th)
for x in xrange(0, 99, 10):
for y in xrange(0, 99, 10):
self.assertEqual(250 < mean_pixel(x, y) <= 255, True)
for crop in ("bottom", "100%", "100px"):
th = self.backend.get_thumbnail(self.portrait, "100x100", crop=crop)
engine = PILEngine()
im = engine.get_image(th)
for x in xrange(0, 99, 10):
for y in xrange(0, 99, 10):
self.assertEqual(0 <= mean_pixel(x, y) < 5, True)
def PIL_test_portrait_crop(self):
def mean_pixel(x, y):
values = im.getpixel((x, y))
if not isinstance(values, (tuple, list)):
values = [values]
return sum(values) / len(values)
# Center Crop
th = self.BACKEND.get_thumbnail(self.portrait, '100x100', cropbox="0,50,100,150")
engine = PILEngine()
im = engine.get_image(th)
# Top half should be color, bottom not
self.assertEqual(mean_pixel(0, 0), 255)
self.assertEqual(mean_pixel(50, 0), 255)
self.assertEqual(mean_pixel(50, 45), 255)
self.assertEqual(mean_pixel(50, 55), 0)
self.assertEqual(mean_pixel(50, 99), 0)
# Top Crop
th = self.BACKEND.get_thumbnail(self.portrait, '100x100', cropbox="0,0,100,100")
engine = PILEngine()
im = engine.get_image(th)
for x in range(0, 99, 10):
for y in range(0, 99, 10):
self.assertEqual(250 < mean_pixel(x, y) <= 255, True)
# Bottom Crop
th = self.BACKEND.get_thumbnail(self.portrait, '100x100', cropbox="0,100,100,200")
engine = PILEngine()
im = engine.get_image(th)
for x in range(0, 99, 10):
for y in range(0, 99, 10):
self.assertEqual(0 <= mean_pixel(x, y) < 5, True)
def PIL_test_landscape_crop(self):
def mean_pixel(x, y):
values = im.getpixel((x, y))
if not isinstance(values, (tuple, list)):
values = [values]
return sum(values) / len(values)
# Center
th = self.BACKEND.get_thumbnail(self.landscape, '100x100', cropbox="50,0,150,100")
engine = PILEngine()
im = engine.get_image(th)
self.assertEqual(mean_pixel(0, 50), 255)
self.assertEqual(mean_pixel(45, 50), 255)
self.assertEqual(250 < mean_pixel(49, 50) <= 255, True)
self.assertEqual(mean_pixel(55, 50), 0)
self.assertEqual(mean_pixel(99, 50), 0)
# Left
th = self.BACKEND.get_thumbnail(self.landscape, '100x100', cropbox="0,0,100,100")
engine = PILEngine()
im = engine.get_image(th)
for x in range(0, 99, 10):
for y in range(0, 99, 10):
self.assertEqual(250 < mean_pixel(x, y) <= 255, True)
# Right
th = self.BACKEND.get_thumbnail(self.landscape, '100x100', cropbox="100,0,200,100")
engine = PILEngine()
im = engine.get_image(th)
coords = ((x, y) for y in range(0, 99, 10) for x in range(0, 99, 10))
for x, y in coords:
self.assertEqual(0 <= mean_pixel(x, y) < 5, True)
def test_landscape_crop(self):
def mean_pixel(x, y):
values = im.getpixel((x, y))
if not isinstance(values, (tuple, list)):
values = [values]
return sum(values) / len(values)
for crop in ('center', '50% 200%', '50px 700px'):
th = self.backend.get_thumbnail(self.landscape, '100x100', crop=crop)
engine = PILEngine()
im = engine.get_image(th)
self.assertEqual(mean_pixel(0, 50), 255)
self.assertEqual(mean_pixel(45, 50), 255)
self.assertEqual(250 < mean_pixel(49, 50) <= 255, True)
self.assertEqual(mean_pixel(55, 50), 0)
self.assertEqual(mean_pixel(99, 50), 0)
for crop in ('left', '0%', '0px'):
th = self.backend.get_thumbnail(self.landscape, '100x100', crop=crop)
engine = PILEngine()
im = engine.get_image(th)
for x in range(0, 99, 10):
for y in range(0, 99, 10):
self.assertEqual(250 < mean_pixel(x, y) <= 255, True)
for crop in ('right', '100%', '100px'):
th = self.backend.get_thumbnail(self.landscape, '100x100', crop=crop)
engine = PILEngine()
im = engine.get_image(th)
for x in range(0, 99, 10):
for y in range(0, 99, 10):
self.assertEqual(0 <= mean_pixel(x, y) < 5, True)
def test_portrait_crop(self):
def mean_pixel(x, y):
values = im.getpixel((x, y))
if not isinstance(values, (tuple, list)):
values = [values]
return sum(values) / len(values)
for crop in ('center', '88% 50%', '50px'):
th = self.backend.get_thumbnail(self.portrait, '100x100', crop=crop)
engine = PILEngine()
im = engine.get_image(th)
self.assertEqual(mean_pixel(50, 0), 255)
self.assertEqual(mean_pixel(50, 45), 255)
self.assertEqual(250 <= mean_pixel(50, 49) <= 255, True, mean_pixel(50, 49))
self.assertEqual(mean_pixel(50, 55), 0)
self.assertEqual(mean_pixel(50, 99), 0)
for crop in ('top', '0%', '0px'):
th = self.backend.get_thumbnail(self.portrait, '100x100', crop=crop)
engine = PILEngine()
im = engine.get_image(th)
for x in range(0, 99, 10):
for y in range(0, 99, 10):
self.assertEqual(250 < mean_pixel(x, y) <= 255, True)
for crop in ('bottom', '100%', '100px'):
th = self.backend.get_thumbnail(self.portrait, '100x100', crop=crop)
engine = PILEngine()
im = engine.get_image(th)
for x in range(0, 99, 10):
for y in range(0, 99, 10):
self.assertEqual(0 <= mean_pixel(x, y) < 5, True)
def testLandscapeCrop(self):
def mean_pixel(x, y):
values = im.getpixel((x, y))
if not isinstance(values, (tuple, list)):
values = [values]
return reduce(operator.add, values) / len(values)
for crop in ('center', '50% 200%', '50px 700px'):
th = self.backend.get_thumbnail(self.landscape, '100x100', crop=crop)
engine = PILEngine()
im = engine.get_image(th)
self.assertEqual(mean_pixel(0, 50), 255)
self.assertEqual(mean_pixel(45, 50), 255)
self.assertEqual(250 < mean_pixel(49, 50) <= 255, True)
self.assertEqual(mean_pixel(55, 50), 0)
self.assertEqual(mean_pixel(99, 50), 0)
for crop in ('left', '0%', '0px'):
th = self.backend.get_thumbnail(self.landscape, '100x100', crop=crop)
engine = PILEngine()
im = engine.get_image(th)
for x in xrange(0, 99, 10):
for y in xrange(0, 99, 10):
self.assertEqual(250 < mean_pixel(x, y) <= 255, True)
for crop in ('right', '100%', '100px'):
th = self.backend.get_thumbnail(self.landscape, '100x100', crop=crop)
engine = PILEngine()
im = engine.get_image(th)
for x in xrange(0, 99, 10):
for y in xrange(0, 99, 10):
self.assertEqual(0 <= mean_pixel(x, y) < 5, True)
def test_landscape_crop(self):
def mean_pixel(x, y):
values = im.getpixel((x, y))
if not isinstance(values, (tuple, list)):
values = [values]
return sum(values) / len(values)
for crop in ('center', '50% 200%', '50px 700px'):
th = self.BACKEND.get_thumbnail(self.landscape, '100x100', crop=crop)
engine = PILEngine()
im = engine.get_image(th)
self.assertEqual(mean_pixel(0, 50), 255)
self.assertEqual(mean_pixel(45, 50), 255)
self.assertEqual(250 < mean_pixel(49, 50) <= 255, True)
self.assertEqual(mean_pixel(55, 50), 0)
self.assertEqual(mean_pixel(99, 50), 0)
for crop in ('left', '0%', '0px'):
th = self.BACKEND.get_thumbnail(self.landscape, '100x100', crop=crop)
engine = PILEngine()
im = engine.get_image(th)
for x in range(0, 99, 10):
for y in range(0, 99, 10):
self.assertEqual(250 < mean_pixel(x, y) <= 255, True)
for crop in ('right', '100%', '100px'):
th = self.BACKEND.get_thumbnail(self.landscape, '100x100', crop=crop)
engine = PILEngine()
im = engine.get_image(th)
coords = ((x, y) for y in range(0, 99, 10) for x in range(0, 99, 10))
for x, y in coords:
self.assertEqual(0 <= mean_pixel(x, y) < 5, True)
def test_portrait_crop(self):
def mean_pixel(x, y):
values = im.getpixel((x, y))
if not isinstance(values, (tuple, list)):
values = [values]
return sum(values) / len(values)
for crop in ('center', '88% 50%', '50px'):
th = self.BACKEND.get_thumbnail(self.portrait, '100x100', crop=crop)
engine = PILEngine()
im = engine.get_image(th)
self.assertEqual(mean_pixel(50, 0), 255)
self.assertEqual(mean_pixel(50, 45), 255)
self.assertEqual(250 <= mean_pixel(50, 49) <= 255, True, mean_pixel(50, 49))
self.assertEqual(mean_pixel(50, 55), 0)
self.assertEqual(mean_pixel(50, 99), 0)
for crop in ('top', '0%', '0px'):
th = self.BACKEND.get_thumbnail(self.portrait, '100x100', crop=crop)
engine = PILEngine()
im = engine.get_image(th)
for x in range(0, 99, 10):
for y in range(0, 99, 10):
self.assertEqual(250 < mean_pixel(x, y) <= 255, True)
for crop in ('bottom', '100%', '100px'):
th = self.BACKEND.get_thumbnail(self.portrait, '100x100', crop=crop)
engine = PILEngine()
im = engine.get_image(th)
for x in range(0, 99, 10):
for y in range(0, 99, 10):
self.assertEqual(0 <= mean_pixel(x, y) < 5, True)
def testLandscapeCrop(self):
def mean_pixel(x, y):
values = im.getpixel((x, y))
if not isinstance(values, (tuple, list)):
values = [values]
return reduce(operator.add, values) / len(values)
for crop in ("center", "50% 200%", "50px 700px"):
th = self.backend.get_thumbnail(self.landscape, "100x100", crop=crop)
engine = PILEngine()
im = engine.get_image(th)
self.assertEqual(mean_pixel(0, 50), 255)
self.assertEqual(mean_pixel(45, 50), 255)
self.assertEqual(250 < mean_pixel(49, 50) <= 255, True)
self.assertEqual(mean_pixel(55, 50), 0)
self.assertEqual(mean_pixel(99, 50), 0)
for crop in ("left", "0%", "0px"):
th = self.backend.get_thumbnail(self.landscape, "100x100", crop=crop)
engine = PILEngine()
im = engine.get_image(th)
for x in xrange(0, 99, 10):
for y in xrange(0, 99, 10):
self.assertEqual(250 < mean_pixel(x, y) <= 255, True)
for crop in ("right", "100%", "100px"):
th = self.backend.get_thumbnail(self.landscape, "100x100", crop=crop)
engine = PILEngine()
im = engine.get_image(th)
for x in xrange(0, 99, 10):
for y in xrange(0, 99, 10):
self.assertEqual(0 <= mean_pixel(x, y) < 5, True)
def test_orientation(self):
ref = Image.open(os.path.join(DATA_DIR, '1_topleft.jpg'))
top = ref.getpixel((14, 7))
left = ref.getpixel((7, 14))
engine = PILEngine()
def epsilon(x, y):
if isinstance(x, (tuple, list)):
x = sum(x) / len(x)
if isinstance(y, (tuple, list)):
y = sum(y) / len(y)
return abs(x - y)
data_images = (
'1_topleft.jpg',
'2_topright.jpg',
'3_bottomright.jpg',
'4_bottomleft.jpg',
'5_lefttop.jpg',
'6_righttop.jpg',
'7_rightbottom.jpg',
'8_leftbottom.jpg'
)
for name in data_images:
th = self.BACKEND.get_thumbnail('data/%s' % name, '30x30')
im = engine.get_image(th)
self.assertLess(epsilon(top, im.getpixel((14, 7))), 10)
self.assertLess(epsilon(left, im.getpixel((7, 14))), 10)
exif = im._getexif()
# no exif editor in GraphicsMagick
if exif and not (settings.THUMBNAIL_CONVERT.endswith('gm convert') or
'pgmagick_engine' in settings.THUMBNAIL_ENGINE):
self.assertEqual(exif.get(0x0112), 1)
