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t5308: make test work with SHA-256

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This test needs multiple object IDs that have the same first byte.
Update the pack test code to generate a suitable packed value for
SHA-256.  Update the test to use this value when using SHA-256.

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 23:14:16 +00:00 committed by Junio C Hamano
parent e0a646ed4f
commit de5737caf3
2 changed files with 20 additions and 8 deletions
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8
t/lib-pack.sh
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@ -93,6 +93,14 @@ pack_obj () {
;;
esac
;;
# blob containing "\3\326"
471819e8c52bf11513f100b2810a8aa0622d5cd3d1c913758a071dd4b3bad8fe)
case "$2" in
'')
printf '\062\170\234\143\276\006\000\000\336\000\332'
return
;;
esac
esac
# If it's not a delta, we can convince pack-objects to generate a pack

20
t/t5308-pack-detect-duplicates.sh
View File

@ -4,23 +4,27 @@ test_description='handling of duplicate objects in incoming packfiles'
. ./test-lib.sh
. "$TEST_DIRECTORY"/lib-pack.sh
if ! test_have_prereq SHA1
then
skip_all='not using SHA-1 for objects'
test_done
fi
test_expect_success 'setup' '
test_oid_cache <<-EOF
lo_oid sha1:e68fe8129b546b101aee9510c5328e7f21ca1d18
lo_oid sha256:471819e8c52bf11513f100b2810a8aa0622d5cd3d1c913758a071dd4b3bad8fe
missing_oid sha1:e69d000000000000000000000000000000000000
missing_oid sha256:4720000000000000000000000000000000000000000000000000000000000000
EOF
'
# The sha1s we have in our pack. It's important that these have the same
# starting byte, so that they end up in the same fanout section of the index.
# That lets us make sure we are exercising the binary search with both sets.
LO_SHA1=e68fe8129b546b101aee9510c5328e7f21ca1d18
HI_SHA1=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
LO_SHA1=$(test_oid lo_oid)
HI_SHA1=$EMPTY_BLOB
# And here's a "missing sha1" which will produce failed lookups. It must also
# be in the same fanout section, and should be between the two (so that during
# our binary search, we are sure to end up looking at one or the other of the
# duplicate runs).
MISSING_SHA1='e69d000000000000000000000000000000000000'
MISSING_SHA1=$(test_oid missing_oid)
# git will never intentionally create packfiles with
# duplicate objects, so we have to construct them by hand.