Pillow/Tests/test_bmp_reference.py
Jon Dufresne 7da17ad41e Improve pytest configuration to allow specific tests as CLI args
The previous test configuration made it difficult to run a single test
with the pytest CLI. There were two major issues:

- The Tests directory was not a package. It now includes a __init__.py
  file and imports from other tests modules are done with relative
  imports.

- setup.cfg always specified the Tests directory. So even if a specific
  test were specified as a CLI arg, this configuration would also always
  include all tests. This configuration has been removed to allow
  specifying a single test on the command line.

Contributors can now run specific tests with a single command such as:

  $ tox -e py37 -- Tests/test_file_pdf.py::TestFilePdf.test_rgb

This makes it easy and faster to iterate on a single test failure and is
very familiar to those that have previously used tox and pytest.

When running tox or pytest with no arguments, they still discover and
runs all tests in the Tests directory.
2019-01-13 09:00:12 -08:00

110 lines
3.9 KiB
Python

from __future__ import print_function
from .helper import unittest, PillowTestCase
from PIL import Image
import os
base = os.path.join('Tests', 'images', 'bmp')
class TestBmpReference(PillowTestCase):
def get_files(self, d, ext='.bmp'):
return [os.path.join(base, d, f) for f
in os.listdir(os.path.join(base, d)) if ext in f]
def test_bad(self):
""" These shouldn't crash/dos, but they shouldn't return anything
either """
for f in self.get_files('b'):
def open(f):
try:
im = Image.open(f)
im.load()
except Exception: # as msg:
pass
# Assert that there is no unclosed file warning
self.assert_warning(None, open, f)
def test_questionable(self):
""" These shouldn't crash/dos, but it's not well defined that these
are in spec """
supported = [
"pal8os2v2.bmp",
"rgb24prof.bmp",
"pal1p1.bmp",
"pal8offs.bmp",
"rgb24lprof.bmp",
"rgb32fakealpha.bmp",
"rgb24largepal.bmp",
"pal8os2sp.bmp",
"rgb32bf-xbgr.bmp",
]
for f in self.get_files('q'):
try:
im = Image.open(f)
im.load()
if os.path.basename(f) not in supported:
print("Please add %s to the partially supported"
" bmp specs." % f)
except Exception: # as msg:
if os.path.basename(f) in supported:
raise
def test_good(self):
""" These should all work. There's a set of target files in the
html directory that we can compare against. """
# Target files, if they're not just replacing the extension
file_map = {'pal1wb.bmp': 'pal1.png',
'pal4rle.bmp': 'pal4.png',
'pal8-0.bmp': 'pal8.png',
'pal8rle.bmp': 'pal8.png',
'pal8topdown.bmp': 'pal8.png',
'pal8nonsquare.bmp': 'pal8nonsquare-v.png',
'pal8os2.bmp': 'pal8.png',
'pal8os2sp.bmp': 'pal8.png',
'pal8os2v2.bmp': 'pal8.png',
'pal8os2v2-16.bmp': 'pal8.png',
'pal8v4.bmp': 'pal8.png',
'pal8v5.bmp': 'pal8.png',
'rgb16-565pal.bmp': 'rgb16-565.png',
'rgb24pal.bmp': 'rgb24.png',
'rgb32.bmp': 'rgb24.png',
'rgb32bf.bmp': 'rgb24.png'
}
def get_compare(f):
name = os.path.split(f)[1]
if name in file_map:
return os.path.join(base, 'html', file_map[name])
name = os.path.splitext(name)[0]
return os.path.join(base, 'html', "%s.png" % name)
for f in self.get_files('g'):
try:
im = Image.open(f)
im.load()
compare = Image.open(get_compare(f))
compare.load()
if im.mode == 'P':
# assert image similar doesn't really work
# with paletized image, since the palette might
# be differently ordered for an equivalent image.
im = im.convert('RGBA')
compare = im.convert('RGBA')
self.assert_image_similar(im, compare, 5)
except Exception as msg:
# there are three here that are unsupported:
unsupported = (os.path.join(base, 'g', 'rgb32bf.bmp'),
os.path.join(base, 'g', 'pal8rle.bmp'),
os.path.join(base, 'g', 'pal4rle.bmp'))
if f not in unsupported:
self.fail("Unsupported Image %s: %s" % (f, msg))
if __name__ == '__main__':
unittest.main()