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test: cover image resize failures

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wang-qisen 2026-09-01 21:49:47 +08:00
parent 4a96adb4ca
commit af29f088ce
1 changed files with 13 additions and 8 deletions
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21
tests/unit/test_auto_image_steps.py
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@ -532,23 +532,28 @@ def test_image_preprocessing_reports_dependency_errors(blocked_module, suffix, e
@pytest.mark.parametrize(
("payload", "suffix", "save_fails", "error_pattern"),
("payload", "suffix", "failing_method", "error_pattern"),
[
(b"not an image", ".png", False, "Failed to decode image"),
(_img_bytes("BMP"), ".bmp", True, "Failed to convert/resize image"),
(b"not an image", ".png", None, "Failed to decode image"),
(_png_bytes(width=2049, height=1), ".png", "thumbnail", "Failed to convert/resize image"),
(_img_bytes("BMP"), ".bmp", "save", "Failed to convert/resize image"),
],
ids=["decode", "conversion"],
ids=["decode", "resize", "conversion"],
)
def test_image_preprocessing_reports_data_errors(payload, suffix, save_fails, error_pattern):
"""Decode and conversion failures remain explicit."""
if not save_fails:
def test_image_preprocessing_reports_data_errors(payload, suffix, failing_method, error_pattern):
"""Decode, resize, and conversion failures remain explicit."""
if failing_method is None:
with pytest.raises(RuntimeError, match=error_pattern):
_build_image_request_payload(payload, suffix)
return
with patch("PIL.Image.Image.save", side_effect=OSError("encoder failed")):
with patch(
f"PIL.Image.Image.{failing_method}",
side_effect=OSError(f"{failing_method} failed"),
) as failing_call:
with pytest.raises(RuntimeError, match=error_pattern):
_normalize_image_bytes(payload, suffix)
failing_call.assert_called_once()
def test_auto_image_module_imports_without_pillow():