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https://github.com/python-pillow/Pillow.git
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94 lines
3.0 KiB
Python
94 lines
3.0 KiB
Python
from .helper import PillowTestCase
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from PIL import ImagePath, Image
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from PIL._util import py3
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import array
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import struct
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class TestImagePath(PillowTestCase):
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def test_path(self):
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p = ImagePath.Path(list(range(10)))
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# sequence interface
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self.assertEqual(len(p), 5)
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self.assertEqual(p[0], (0.0, 1.0))
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self.assertEqual(p[-1], (8.0, 9.0))
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self.assertEqual(list(p[:1]), [(0.0, 1.0)])
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with self.assertRaises(TypeError) as cm:
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p["foo"]
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self.assertEqual(str(cm.exception), "Path indices must be integers, not str")
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self.assertEqual(
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list(p), [(0.0, 1.0), (2.0, 3.0), (4.0, 5.0), (6.0, 7.0), (8.0, 9.0)]
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)
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# method sanity check
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self.assertEqual(
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p.tolist(), [(0.0, 1.0), (2.0, 3.0), (4.0, 5.0), (6.0, 7.0), (8.0, 9.0)]
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)
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self.assertEqual(
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p.tolist(1), [0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0]
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)
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self.assertEqual(p.getbbox(), (0.0, 1.0, 8.0, 9.0))
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self.assertEqual(p.compact(5), 2)
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self.assertEqual(list(p), [(0.0, 1.0), (4.0, 5.0), (8.0, 9.0)])
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p.transform((1, 0, 1, 0, 1, 1))
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self.assertEqual(list(p), [(1.0, 2.0), (5.0, 6.0), (9.0, 10.0)])
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# alternative constructors
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p = ImagePath.Path([0, 1])
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self.assertEqual(list(p), [(0.0, 1.0)])
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p = ImagePath.Path([0.0, 1.0])
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self.assertEqual(list(p), [(0.0, 1.0)])
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p = ImagePath.Path([0, 1])
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self.assertEqual(list(p), [(0.0, 1.0)])
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p = ImagePath.Path([(0, 1)])
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self.assertEqual(list(p), [(0.0, 1.0)])
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p = ImagePath.Path(p)
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self.assertEqual(list(p), [(0.0, 1.0)])
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p = ImagePath.Path(p.tolist(0))
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self.assertEqual(list(p), [(0.0, 1.0)])
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p = ImagePath.Path(p.tolist(1))
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self.assertEqual(list(p), [(0.0, 1.0)])
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p = ImagePath.Path(array.array("f", [0, 1]))
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self.assertEqual(list(p), [(0.0, 1.0)])
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arr = array.array("f", [0, 1])
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if hasattr(arr, "tobytes"):
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p = ImagePath.Path(arr.tobytes())
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else:
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p = ImagePath.Path(arr.tostring())
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self.assertEqual(list(p), [(0.0, 1.0)])
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def test_overflow_segfault(self):
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# Some Pythons fail getting the argument as an integer, and it falls
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# through to the sequence. Seeing this on 32-bit Windows.
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with self.assertRaises((TypeError, MemoryError)):
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# post patch, this fails with a memory error
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x = evil()
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# This fails due to the invalid malloc above,
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# and segfaults
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for i in range(200000):
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if py3:
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x[i] = b"0" * 16
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else:
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x[i] = "0" * 16
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class evil:
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def __init__(self):
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self.corrupt = Image.core.path(0x4000000000000000)
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def __getitem__(self, i):
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x = self.corrupt[i]
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return struct.pack("dd", x[0], x[1])
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def __setitem__(self, i, x):
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self.corrupt[i] = struct.unpack("dd", x)
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