Pillow/Tests/test_file_sun.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

52 lines
1.6 KiB
Python

from .helper import unittest, PillowTestCase, hopper
from PIL import Image, SunImagePlugin
import os
EXTRA_DIR = 'Tests/images/sunraster'
class TestFileSun(PillowTestCase):
def test_sanity(self):
# Arrange
# Created with ImageMagick: convert hopper.jpg hopper.ras
test_file = "Tests/images/hopper.ras"
# Act
im = Image.open(test_file)
# Assert
self.assertEqual(im.size, (128, 128))
self.assert_image_similar(im, hopper(), 5) # visually verified
invalid_file = "Tests/images/flower.jpg"
self.assertRaises(SyntaxError,
SunImagePlugin.SunImageFile, invalid_file)
def test_im1(self):
im = Image.open('Tests/images/sunraster.im1')
target = Image.open('Tests/images/sunraster.im1.png')
self.assert_image_equal(im, target)
@unittest.skipIf(not os.path.exists(EXTRA_DIR),
"Extra image files not installed")
def test_others(self):
files = (os.path.join(EXTRA_DIR, f) for f in
os.listdir(EXTRA_DIR) if os.path.splitext(f)[1]
in ('.sun', '.SUN', '.ras'))
for path in files:
with Image.open(path) as im:
im.load()
self.assertIsInstance(im, SunImagePlugin.SunImageFile)
target_path = "%s.png" % os.path.splitext(path)[0]
# im.save(target_file)
with Image.open(target_path) as target:
self.assert_image_equal(im, target)
if __name__ == '__main__':
unittest.main()