Pillow/Tests/test_font_leaks.py

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from __future__ import division
from PIL import Image, ImageDraw, ImageFont, features
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from .helper import PillowLeakTestCase, is_win32, unittest
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@unittest.skipIf(is_win32(), "requires Unix or macOS")
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class TestTTypeFontLeak(PillowLeakTestCase):
# fails at iteration 3 in master
iterations = 10
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mem_limit = 4096 # k
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def _test_font(self, font):
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im = Image.new("RGB", (255, 255), "white")
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draw = ImageDraw.ImageDraw(im)
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self._test_leak(
lambda: draw.text(
(0, 0), "some text " * 1024, font=font, fill="black" # ~10k
)
)
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@unittest.skipIf(not features.check("freetype2"), "Test requires freetype2")
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def test_leak(self):
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ttype = ImageFont.truetype("Tests/fonts/FreeMono.ttf", 20)
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self._test_font(ttype)
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class TestDefaultFontLeak(TestTTypeFontLeak):
# fails at iteration 37 in master
iterations = 100
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mem_limit = 1024 # k
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def test_leak(self):
default_font = ImageFont.load_default()
self._test_font(default_font)