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t5300: check that we produced expected number of deltas

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We pack a set of objects both with and without --window=0, assuming that
the 0-length window will cause us not to produce any deltas. Let's
confirm that this is the case.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King
2021-05-01 10:03:25 -04:00
committed by Junio C Hamano
parent 5489899812
commit 95356789ee
1 changed files with 20 additions and 3 deletions
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23
t/t5300-pack-object.sh
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@ -34,8 +34,22 @@ test_expect_success 'setup' '
} >expect } >expect
' '
# usage: check_deltas <stderr_from_pack_objects> <cmp_op> <nr_deltas>
# e.g.: check_deltas stderr -gt 0
check_deltas() {
deltas=$(perl -lne '/delta (\d+)/ and print $1' "$1") &&
shift &&
if ! test "$deltas" "$@"
then
echo >&2 "unexpected number of deltas (compared $delta $*)"
return 1
fi
}
test_expect_success 'pack without delta' ' test_expect_success 'pack without delta' '
packname_1=$(git pack-objects --window=0 test-1 <obj-list) packname_1=$(git pack-objects --progress --window=0 test-1 \
<obj-list 2>stderr) &&
check_deltas stderr = 0
' '
test_expect_success 'pack-objects with bogus arguments' ' test_expect_success 'pack-objects with bogus arguments' '
@ -62,7 +76,8 @@ test_expect_success 'unpack without delta' '
' '
test_expect_success 'pack with REF_DELTA' ' test_expect_success 'pack with REF_DELTA' '
packname_2=$(git pack-objects test-2 <obj-list) packname_2=$(git pack-objects --progress test-2 <obj-list 2>stderr) &&
check_deltas stderr -gt 0
' '
test_expect_success 'unpack with REF_DELTA' ' test_expect_success 'unpack with REF_DELTA' '
@ -70,7 +85,9 @@ test_expect_success 'unpack with REF_DELTA' '
' '
test_expect_success 'pack with OFS_DELTA' ' test_expect_success 'pack with OFS_DELTA' '
packname_3=$(git pack-objects --delta-base-offset test-3 <obj-list) packname_3=$(git pack-objects --progress --delta-base-offset test-3 \
<obj-list 2>stderr) &&
check_deltas stderr -gt 0
' '
test_expect_success 'unpack with OFS_DELTA' ' test_expect_success 'unpack with OFS_DELTA' '