Re: [PATCH v4 2/2] t4041: test SHA-256 submodule abbreviations
- From
Junio C Hamano <gitster@pobox.com>
- Date
- Nov 3, 2026, 17:31 UTC
- Message-ID
- <xmqq7bitakkm.fsf@gitster.g>
- In-Reply-To
- <99a1234544840e63e6f3dcf3c6beae3ba02af84b.1793648430.git.gitgitgadget@gmail.com>
"Srujith A Poojary via GitGitGadget" <gitgitgadget@gmail.com> writes:
Show 11 quoted lines
> From: Srujith A Poojary <poojarysrujith@gmail.com> > > The expected abbreviation for a submodule commit depends on the > repository's hash algorithm. Use test_oid_cache to provide the > expected value for each algorithm and remove the SHA1 prerequisite > so this test runs with both SHA-1 and SHA-256. > > Signed-off-by: Srujith A Poojary <poojarysrujith@gmail.com> > --- > t/t4041-diff-submodule-option.sh | 9 +++++++-- > 1 file changed, 7 insertions(+), 2 deletions(-)
It is strange to test SHA-1 in 1/2 and add test for SHA-256 as if an afterthought in 2/2. Shouldn't all of these come in a single patch?
The change to add the second hash algorithm support is surprisingly clean, primarily thanks to how test_oid* support was done long ago.
Show 27 quoted lines
> diff --git a/t/t4041-diff-submodule-option.sh b/t/t4041-diff-submodule-option.sh > index e80472af32..4539d6bba5 100755 > --- a/t/t4041-diff-submodule-option.sh > +++ b/t/t4041-diff-submodule-option.sh > @@ -14,7 +14,11 @@ export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME > > . ./test-lib.sh > > -test_expect_success SHA1 'submodule commit abbreviation uses submodule object database' ' > +test_expect_success 'submodule commit abbreviation uses submodule object database' ' > + test_oid_cache <<-EOF && > + submodule_commit1_abbrev sha1:0000000000e > + submodule_commit1_abbrev sha256:24c81a5 > + EOF > test_when_finished "rm -rf collision-super" && > git init -q collision-super && > git init -q collision-super/sm1 && > @@ -27,7 +31,8 @@ test_expect_success SHA1 'submodule commit abbreviation uses submodule object da > git -C collision-super update-index --add --cacheinfo 160000,"$commit1",sm1 && > git -C collision-super commit -q -m "Add submodule" && > git -C collision-super diff --submodule=log >actual && > - printf "Submodule sm1 0000000000e..%s:\n > child\n" \ > + printf "Submodule sm1 %s..%s:\n > child\n" \ > + "$(test_oid submodule_commit1_abbrev)" \ > "$(git -C collision-super/sm1 rev-parse --short "$commit2")" >expected && > test_cmp expected actual > '