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Diffstat (limited to 't/t6120-describe.sh')
| -rwxr-xr-x | t/t6120-describe.sh | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/t/t6120-describe.sh b/t/t6120-describe.sh index 256ccaefb7..2c70cc561a 100755 --- a/t/t6120-describe.sh +++ b/t/t6120-describe.sh @@ -409,6 +409,36 @@ test_expect_success 'describe tag object' ' test_grep "fatal: test-blob-1 is neither a commit nor blob" actual ' +test_expect_success 'describe an unreachable blob' ' + blob=$(echo not-found-anywhere | git hash-object -w --stdin) && + test_must_fail git describe $blob 2>actual && + test_grep "blob .$blob. not reachable from HEAD" actual +' + +test_expect_success 'describe blob on an unborn branch' ' + oldbranch=$(git symbolic-ref HEAD) && + test_when_finished "git symbolic-ref HEAD $oldbranch" && + git symbolic-ref HEAD refs/heads/does-not-exist && + test_must_fail git describe test-blob 2>actual && + test_grep "cannot search .* on an unborn branch" actual +' + +# This test creates a repository state that we generally try to disallow: HEAD +# is pointing to an object that is not a commit. The ref update code forbids +# non-commit writes directly to HEAD or to any branch in refs/heads/. But we +# can use the loophole of pointing HEAD to another non-branch ref (something we +# should forbid, but don't for historical reasons). +# +# Do not take this test as an endorsement of the loophole! If we ever tighten +# it, it is reasonable to just drop this test entirely. +test_expect_success 'describe blob on a non-commit HEAD' ' + oldbranch=$(git symbolic-ref HEAD) && + test_when_finished "git symbolic-ref HEAD $oldbranch" && + git symbolic-ref HEAD refs/tags/test-blob && + test_must_fail git describe test-blob 2>actual && + test_grep "blob .* not reachable from HEAD" actual +' + test_expect_success ULIMIT_STACK_SIZE 'name-rev works in a deep repo' ' i=1 && while test $i -lt 8000 |