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Diffstat (limited to 't/t1410-reflog.sh')
| -rwxr-xr-x | t/t1410-reflog.sh | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/t/t1410-reflog.sh b/t/t1410-reflog.sh index 8cf446165e..779d4e3829 100755 --- a/t/t1410-reflog.sh +++ b/t/t1410-reflog.sh @@ -287,4 +287,34 @@ test_expect_success 'stale dirs do not cause d/f conflicts (reflogs off)' ' test_cmp expect actual ' +# Triggering the bug detected by this test requires a newline to fall +# exactly BUFSIZ-1 bytes from the end of the file. We don't know +# what that value is, since it's platform dependent. However, if +# we choose some value N, we also catch any D which divides N evenly +# (since we will read backwards in chunks of D). So we choose 8K, +# which catches glibc (with an 8K BUFSIZ) and *BSD (1K). +# +# Each line is 114 characters, so we need 75 to still have a few before the +# last 8K. The 89-character padding on the final entry lines up our +# newline exactly. +test_expect_success 'parsing reverse reflogs at BUFSIZ boundaries' ' + git checkout -b reflogskip && + z38=00000000000000000000000000000000000000 && + ident="abc <xyz> 0000000001 +0000" && + for i in $(test_seq 1 75); do + printf "$z38%02d $z38%02d %s\t" $i $(($i+1)) "$ident" && + if test $i = 75; then + for j in $(test_seq 1 89); do + printf X + done + else + printf X + fi && + printf "\n" + done >.git/logs/refs/heads/reflogskip && + git rev-parse reflogskip@{73} >actual && + echo ${z38}03 >expect && + test_cmp expect actual +' + test_done |