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Make tests fail when an error is reported by GhostScript

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This commit is contained in:
Guillaume Ayoub 2020-12-12 15:17:41 +01:00
parent 85cfc933c6
commit 8defa11c47
1 changed files with 4 additions and 0 deletions
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4
tests/conftest.py
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@ -29,6 +29,10 @@ def document_write_png(self, target=None, resolution=96, antialiasing=1):
f'-r{resolution}', '-sOutputFile=-', '-']
pngs = run(command, input=pdf, stdout=PIPE).stdout
assert pngs.startswith(MAGIC_NUMBER), (
'GhostScript error: '
f'{pngs.split(MAGIC_NUMBER)[0].decode("ascii").strip()}')
# TODO: use a different way to find PNG files in stream
magic_numbers = pngs.count(MAGIC_NUMBER)
if magic_numbers == 1: