Pillow/Tests/test_font_leaks.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

38 lines
1.1 KiB
Python

from __future__ import division
from .helper import unittest, PillowLeakTestCase
import sys
from PIL import Image, features, ImageDraw, ImageFont
@unittest.skipIf(sys.platform.startswith('win32'), "requires Unix or macOS")
class TestTTypeFontLeak(PillowLeakTestCase):
# fails at iteration 3 in master
iterations = 10
mem_limit = 4096 # k
def _test_font(self, font):
im = Image.new('RGB', (255, 255), 'white')
draw = ImageDraw.ImageDraw(im)
self._test_leak(lambda: draw.text((0, 0), "some text "*1024, # ~10k
font=font, fill="black"))
@unittest.skipIf(not features.check('freetype2'),
"Test requires freetype2")
def test_leak(self):
ttype = ImageFont.truetype('Tests/fonts/FreeMono.ttf', 20)
self._test_font(ttype)
class TestDefaultFontLeak(TestTTypeFontLeak):
# fails at iteration 37 in master
iterations = 100
mem_limit = 1024 # k
def test_leak(self):
default_font = ImageFont.load_default()
self._test_font(default_font)
if __name__ == '__main__':
unittest.main()