Pillow/Tests/test_file_tiff.py
2013-05-07 23:49:45 +03:00

74 lines
1.9 KiB
Python

from tester import *
from PIL import Image
def test_sanity():
file = tempfile("temp.tif")
lena("RGB").save(file)
im = Image.open(file)
im.load()
assert_equal(im.mode, "RGB")
assert_equal(im.size, (128, 128))
assert_equal(im.format, "TIFF")
lena("1").save(file)
im = Image.open(file)
lena("L").save(file)
im = Image.open(file)
lena("P").save(file)
im = Image.open(file)
lena("RGB").save(file)
im = Image.open(file)
lena("I").save(file)
im = Image.open(file)
def test_mac_tiff():
# Read RGBa images from Mac OS X [@PIL136]
file = "Tests/images/pil136.tiff"
im = Image.open(file)
assert_equal(im.mode, "RGBA")
assert_equal(im.size, (55, 43))
assert_equal(im.tile, [('raw', (0, 0, 55, 43), 8, ('RGBa', 0, 1))])
assert_no_exception(lambda: im.load())
def test_gimp_tiff():
# Read TIFF JPEG images from GIMP [@PIL168]
codecs = dir(Image.core)
if "jpeg_decoder" not in codecs:
skip("jpeg support not available")
file = "Tests/images/pil168.tif"
im = Image.open(file)
assert_equal(im.mode, "RGB")
assert_equal(im.size, (256, 256))
assert_equal(im.tile, [
('jpeg', (0, 0, 256, 64), 8, ('RGB', '')),
('jpeg', (0, 64, 256, 128), 1215, ('RGB', '')),
('jpeg', (0, 128, 256, 192), 2550, ('RGB', '')),
('jpeg', (0, 192, 256, 256), 3890, ('RGB', '')),
])
assert_no_exception(lambda: im.load())
def test_xyres_tiff():
from PIL.TiffImagePlugin import X_RESOLUTION, Y_RESOLUTION
file = "Tests/images/pil168.tif"
im = Image.open(file)
assert isinstance(im.tag.tags[X_RESOLUTION][0], tuple)
assert isinstance(im.tag.tags[Y_RESOLUTION][0], tuple)
#Try to read a file where X,Y_RESOLUTION are ints
im.tag.tags[X_RESOLUTION] = (72,)
im.tag.tags[Y_RESOLUTION] = (72,)
im._setup()
assert_equal(im.info['dpi'], (72., 72.))