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If digest is called then the hash object is put in a "final" state and calling update() or digest() again will raise a ValueError (instead of silently producing the wrong result). See issue #4119. Signed-off-by: Damien George <damien@micropython.org>
36 lines
855 B
Python
36 lines
855 B
Python
try:
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import uhashlib
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except ImportError:
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print("SKIP")
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raise SystemExit
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for algo_name in ("md5", "sha1", "sha256"):
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algo = getattr(uhashlib, algo_name, None)
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if not algo:
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continue
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# Running .digest() several times in row is not supported.
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h = algo(b"123")
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h.digest()
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try:
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h.digest()
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print("fail")
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except ValueError:
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# Expected path, don't print anything so test output is the
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# same even if the algorithm is not implemented on the port.
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pass
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# Partial digests are not supported.
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h = algo(b"123")
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h.digest()
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try:
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h.update(b"456")
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print("fail")
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except ValueError:
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# Expected path, don't print anything so test output is the
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# same even if the algorithm is not implemented on the port.
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pass
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print("done")
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