26509363662
90%
master: 90%

Ran 27 May 2026 11:52AM UTC

Jobs 1

Files 49

Run time 1min

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Committed 27 May 2026 11:49AM UTC coverage: 89.655% (-0.3%) from 89.906%

Build # 26509363662

Build Type

Pull #107

github

Committed by

bigbes

Commit Message

hasher: accept nil and empty input as the empty-string digest

Storage backends round-trip empty stored values as nil, so a read of a
legitimately-empty value reached the validator with body=nil and exploded
at the SHA-256 hash check ("data is nil") and the RSA-PSS verifier check
("failed to get hash: data is nil"). The only workaround was
IgnoreVerificationError(), which defeats the integrity layer.

Drop the data == nil guard from sha1/sha256 — hash.Hash.Write(nil) is
well-defined, both nil and []byte{} now produce the empty-input digest.
ErrDataIsNil was internal-only; remove it.

Pin the contract at every layer: nil/empty parity in the hasher units,
sign+verify acceptance plus empty-signature rejection in rsapss, direct
empty-body validator coverage (value-only, value+hash, value+hash+sig),
and a TxPut([]byte{})/TxGet round-trip mirroring the reproducer against
every backend.

Pull Request Pull Request #107: hasher: accept nil and empty input as the empty-string digest

Coverage Stats

3796 of 4234 relevant lines covered (89.66%)

512.74 hits per line

Coverage Regressions

Lines	Coverage	∆	File
10	37.67	-4.48%	driver/tcs/locker.go

Jobs

ID	Job ID	Ran	Files	Coverage
1	26509363662.1	27 May 2026 11:52AM UTC	49	89.66	GitHub Action Run

tarantool / go-storage / 26509363662
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