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44 lines
1.0 KiB
Python
44 lines
1.0 KiB
Python
from __future__ import annotations
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import sys
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from pathlib import PosixPath
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import pytest
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from PIL import Image
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# This test is not run automatically.
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#
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# It requires > 2gb memory for the >2 gigapixel image generated in the
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# second test. Running this automatically would amount to a denial of
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# service on our testing infrastructure. I expect this test to fail
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# on any 32-bit machine, as well as any smallish things (like
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# Raspberry Pis).
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np = pytest.importorskip("numpy", reason="NumPy not installed")
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YDIM = 32769
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XDIM = 48000
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pytestmark = pytest.mark.skipif(sys.maxsize <= 2**32, reason="requires 64-bit system")
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def _write_png(tmp_path: PosixPath, xdim: int, ydim: int) -> None:
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dtype = np.uint8
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a = np.zeros((xdim, ydim), dtype=dtype)
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f = str(tmp_path / "temp.png")
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im = Image.fromarray(a, "L")
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im.save(f)
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def test_large(tmp_path: PosixPath) -> None:
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"""succeeded prepatch"""
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_write_png(tmp_path, XDIM, YDIM)
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def test_2gpx(tmp_path: PosixPath) -> None:
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"""failed prepatch"""
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_write_png(tmp_path, XDIM, XDIM)
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