cd7ad3e15e
The png library uses setjmp/longjmp to throw exceptions when reading. If this is not set up, the png library calls abort(). This change handles the errors and throws a C++ exception instead. This issue was found by testing images from pngsuite at http://www.schaik.com/pngsuite/. These images are included and a unit test was added to test both images that should be successful and images that should throw an exception.
35 lines
905 B
Python
35 lines
905 B
Python
#!/usr/bin/env python
|
|
|
|
import os
|
|
import mapnik
|
|
from nose.tools import *
|
|
from utilities import execution_path
|
|
|
|
datadir = '../data/pngsuite'
|
|
|
|
def setup():
|
|
# All of the paths used are relative, if we run the tests
|
|
# from another directory we need to chdir()
|
|
os.chdir(execution_path('.'))
|
|
|
|
def assert_broken_file(fname):
|
|
assert_raises(RuntimeError, lambda: mapnik.Image.open(fname))
|
|
|
|
def assert_good_file(fname):
|
|
assert mapnik.Image.open(fname)
|
|
|
|
def get_pngs(good):
|
|
files = [ x for x in os.listdir(datadir) if x.endswith('.png') ]
|
|
return [ os.path.join(datadir, x) for x in files if good != x.startswith('x') ]
|
|
|
|
def test_good_pngs():
|
|
for x in get_pngs(True):
|
|
yield assert_good_file, x
|
|
|
|
def test_broken_pngs():
|
|
for x in get_pngs(False):
|
|
yield assert_broken_file, x
|
|
|
|
if __name__ == "__main__":
|
|
setup()
|
|
[eval(run)() for run in dir() if 'test_' in run]
|