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t: make SHA1 prerequisite depend on default hash

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Currently, the SHA1 prerequisite depends on the output of git
hash-object.  However, in order for that to produce sane behavior, we
must be in a repository.  If we are not, the default will remain SHA-1,
and we'll produce wrong results if we're using SHA-256 for the testsuite
but the test assertion starts when we're not in a repository.

Check the environment variable we use for this purpose, leaving it to
default to SHA-1 if none is specified.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
brian m. carlson 2020-07-29 23:14:25 +00:00 committed by Junio C Hamano
parent 02a32dbff7
commit c49fe07cff
1 changed files with 5 additions and 1 deletions
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6
t/test-lib.sh
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@ -1689,7 +1689,11 @@ test_lazy_prereq CURL '
# which will not work with other hash algorithms and tests that work but don't
# test anything meaningful (e.g. special values which cause short collisions).
test_lazy_prereq SHA1 '
test $(git hash-object /dev/null) = e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
case "$GIT_DEFAULT_HASH" in
sha1) true ;;
"") test $(git hash-object /dev/null) = e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 ;;
*) false ;;
esac
'
test_lazy_prereq REBASE_P '