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Test invalid texture compression format

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This commit is contained in:
Andrew Murray 2025-02-19 23:28:25 +11:00
parent 769a14dca5
commit ae6bb4cac2
1 changed files with 15 additions and 0 deletions
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15
Tests/test_file_ftex.py
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@ -1,5 +1,8 @@
from __future__ import annotations from __future__ import annotations
import io
import struct
import pytest import pytest
from PIL import FtexImagePlugin, Image from PIL import FtexImagePlugin, Image
@ -23,3 +26,15 @@ def test_invalid_file() -> None:
with pytest.raises(SyntaxError): with pytest.raises(SyntaxError):
FtexImagePlugin.FtexImageFile(invalid_file) FtexImagePlugin.FtexImageFile(invalid_file)
def test_invalid_texture() -> None:
with open("Tests/images/ftex_dxt1.ftc", "rb") as fp:
data = fp.read()
# Change texture compression format
data = data[:24] + struct.pack("<i", 2) + data[28:]
with pytest.raises(ValueError, match="Invalid texture compression format: 2"):
with Image.open(io.BytesIO(data)):
pass