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