python-pillow/Pillow
1
1
Fork 0
mirror of https://github.com/python-pillow/Pillow.git synced 2024-12-26 09:56:17 +03:00
Code Issues Packages Projects Releases Wiki Activity

Split tiff tests so that test_file_tiff tests the builtins, and test_file_libtiff tests only things that depend on libtiff

Browse Source
This commit is contained in:
wiredfool 2013-04-21 13:51:16 -07:00
parent 995fe2b041
commit 945b6bf53c
3 changed files with 90 additions and 87 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

89
Tests/test_file_libtiff.py Normal file
View File

@ -0,0 +1,89 @@
from tester import *
from PIL import Image
codecs = dir(Image.core)
if "group4_encoder" not in codecs or "group4_decoder" not in codecs:
skip("tiff support not available")
def _assert_noerr(im):
"""Helper tests that assert basic sanity about the g4 tiff reading"""
#1 bit
assert_equal(im.mode, "1")
# Does the data actually load
assert_no_exception(lambda: im.load())
assert_no_exception(lambda: im.getdata())
try:
assert_equal(im._compression, 'group4')
except:
print("No _compression")
print (dir(im))
# can we write it back out, in a different form.
out = tempfile("temp.png")
assert_no_exception(lambda: im.save(out))
def test_g4_tiff():
"""Test the ordinary file path load path"""
file = "Tests/images/lena_g4_500.tif"
im = Image.open(file)
assert_equal(im.size, (500,500))
_assert_noerr(im)
def test_g4_large():
file = "Tests/images/pport_g4.tif"
im = Image.open(file)
_assert_noerr(im)
def test_g4_tiff_file():
"""Testing the string load path"""
file = "Tests/images/lena_g4_500.tif"
with open(file,'rb') as f:
im = Image.open(f)
assert_equal(im.size, (500,500))
_assert_noerr(im)
def test_g4_tiff_bytesio():
"""Testing the stringio loading code path"""
from io import BytesIO
file = "Tests/images/lena_g4_500.tif"
s = BytesIO()
with open(file,'rb') as f:
s.write(f.read())
s.seek(0)
im = Image.open(s)
assert_equal(im.size, (500,500))
_assert_noerr(im)
def test_g4_eq_png():
""" Checking that we're actually getting the data that we expect"""
png = Image.open('Tests/images/lena_bw_500.png')
g4 = Image.open('Tests/images/lena_g4_500.tif')
assert_image_equal(g4, png)
def test_g4_write():
"""Checking to see that the saved image is the same as what we wrote"""
file = "Tests/images/lena_g4_500.tif"
orig = Image.open(file)
out = tempfile("temp.tif")
rot = orig.transpose(Image.ROTATE_90)
assert_equal(rot.size,(500,500))
rot.save(out)
reread = Image.open(out)
assert_equal(reread.size,(500,500))
_assert_noerr(reread)
assert_image_equal(reread, rot)
assert_false(orig.tobytes() == reread.tobytes())

86
Tests/test_file_tiff.py
View File

@ -2,13 +2,6 @@ from tester import *
from PIL import Image
import random
codecs = dir(Image.core)
if "group4_encoder" not in codecs or "group4_decoder" not in codecs:
skip("tiff support not available")
def test_sanity():
file = tempfile("temp.tif")
@ -63,83 +56,4 @@ def test_gimp_tiff():
])
assert_no_exception(lambda: im.load())
def _assert_noerr(im):
"""Helper tests that assert basic sanity about the g4 tiff reading"""
#1 bit
assert_equal(im.mode, "1")
# Does the data actually load
assert_no_exception(lambda: im.load())
assert_no_exception(lambda: im.getdata())
try:
assert_equal(im._compression, 'group4')
except:
print("No _compression")
print (dir(im))
# can we write it back out, in a different form.
out = tempfile("temp.png")
assert_no_exception(lambda: im.save(out))
def test_g4_tiff():
"""Test the ordinary file path load path"""
file = "Tests/images/lena_g4_500.tif"
im = Image.open(file)
assert_equal(im.size, (500,500))
_assert_noerr(im)
def test_g4_large():
file = "Tests/images/pport_g4.tif"
im = Image.open(file)
_assert_noerr(im)
def test_g4_tiff_file():
"""Testing the string load path"""
file = "Tests/images/lena_g4_500.tif"
with open(file,'rb') as f:
im = Image.open(f)
assert_equal(im.size, (500,500))
_assert_noerr(im)
def test_g4_tiff_bytesio():
"""Testing the stringio loading code path"""
from io import BytesIO
file = "Tests/images/lena_g4_500.tif"
s = BytesIO()
with open(file,'rb') as f:
s.write(f.read())
s.seek(0)
im = Image.open(s)
assert_equal(im.size, (500,500))
_assert_noerr(im)
def test_g4_eq_png():
""" Checking that we're actually getting the data that we expect"""
png = Image.open('Tests/images/lena_bw_500.png')
g4 = Image.open('Tests/images/lena_g4_500.tif')
assert_image_equal(g4, png)
def test_g4_write():
"""Checking to see that the saved image is the same as what we wrote"""
file = "Tests/images/lena_g4_500.tif"
orig = Image.open(file)
out = tempfile("temp.tif")
rot = orig.transpose(Image.ROTATE_90)
assert_equal(rot.size,(500,500))
rot.save(out)
reread = Image.open(out)
assert_equal(reread.size,(500,500))
_assert_noerr(reread)
assert_image_equal(reread, rot)
assert_false(orig.tobytes() == reread.tobytes())

2
Tests/test_file_tiff_small.py
View File

@ -2,7 +2,7 @@ from tester import *
from PIL import Image
from test_file_tiff import _assert_noerr
from test_file_libtiff import _assert_noerr
""" The small lena image was failing on open in the libtiff
decoder because the file pointer was set to the wrong place