Change the pack-objects tests to not leave their .git directory corrupt and the end. In 2fca19fbb5 ("fix multiple issues with t5300", 2010-02-03) a comment was added warning against adding any subsequent tests, but since 4614043c8f ("index-pack: use streaming interface for collision test on large blobs", 2012-05-24) the comment has drifted away from the code, mentioning two test, when we actually have three. Instead of having this warning let's just create a new .git directory specifically for these tests. As an aside, it would be interesting to instrument the test suite to run a "git fsck" at the very end (in "test_done"). That would have errored before this change, and may find other issues #leftoverbits. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx> --- t/t5300-pack-object.sh | 37 ++++++++++++++++++++----------------- 1 file changed, 20 insertions(+), 17 deletions(-) diff --git a/t/t5300-pack-object.sh b/t/t5300-pack-object.sh index a0309e4bab..410a09b0dd 100755 --- a/t/t5300-pack-object.sh +++ b/t/t5300-pack-object.sh @@ -468,29 +468,32 @@ test_expect_success 'pack-objects in too-many-packs mode' ' git fsck ' -# -# WARNING! -# -# The following test is destructive. Please keep the next -# two tests at the end of this file. -# - -test_expect_success 'fake a SHA1 hash collision' ' - long_a=$(git hash-object a | sed -e "s!^..!&/!") && - long_b=$(git hash-object b | sed -e "s!^..!&/!") && - test -f .git/objects/$long_b && - cp -f .git/objects/$long_a \ - .git/objects/$long_b +test_expect_success 'setup: fake a SHA1 hash collision' ' + git init corrupt && + ( + cd corrupt && + long_a=$(git hash-object -w ../a | sed -e "s!^..!&/!") && + long_b=$(git hash-object -w ../b | sed -e "s!^..!&/!") && + test -f .git/objects/$long_b && + cp -f .git/objects/$long_a \ + .git/objects/$long_b + ) ' test_expect_success 'make sure index-pack detects the SHA1 collision' ' - test_must_fail git index-pack -o bad.idx test-3.pack 2>msg && - test_i18ngrep "SHA1 COLLISION FOUND" msg + ( + cd corrupt && + test_must_fail git index-pack -o ../bad.idx ../test-3.pack 2>msg && + test_i18ngrep "SHA1 COLLISION FOUND" msg + ) ' test_expect_success 'make sure index-pack detects the SHA1 collision (large blobs)' ' - test_must_fail git -c core.bigfilethreshold=1 index-pack -o bad.idx test-3.pack 2>msg && - test_i18ngrep "SHA1 COLLISION FOUND" msg + ( + cd corrupt && + test_must_fail git -c core.bigfilethreshold=1 index-pack -o ../bad.idx ../test-3.pack 2>msg && + test_i18ngrep "SHA1 COLLISION FOUND" msg + ) ' test_done -- 2.19.1.899.g0250525e69