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Diffstat (limited to 't/t1401-symbolic-ref.sh')
| -rwxr-xr-x | t/t1401-symbolic-ref.sh | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/t/t1401-symbolic-ref.sh b/t/t1401-symbolic-ref.sh new file mode 100755 index 0000000..d708acd --- /dev/null +++ b/t/t1401-symbolic-ref.sh @@ -0,0 +1,192 @@ +#!/bin/sh + +test_description='basic symbolic-ref tests' + +TEST_PASSES_SANITIZE_LEAK=true +. ./test-lib.sh + +# If the tests munging HEAD fail, they can break detection of +# the git repo, meaning that further tests will operate on +# the surrounding git repo instead of the trash directory. +reset_to_sane() { + rm -rf .git && + "$TAR" xf .git.tar +} + +test_expect_success 'setup' ' + git symbolic-ref HEAD refs/heads/foo && + test_commit file && + "$TAR" cf .git.tar .git/ +' + +test_expect_success 'symbolic-ref read/write roundtrip' ' + git symbolic-ref HEAD refs/heads/read-write-roundtrip && + echo refs/heads/read-write-roundtrip >expect && + git symbolic-ref HEAD >actual && + test_cmp expect actual +' + +test_expect_success 'symbolic-ref refuses non-ref for HEAD' ' + test_must_fail git symbolic-ref HEAD foo +' + +reset_to_sane + +test_expect_success 'symbolic-ref refuses bare sha1' ' + test_must_fail git symbolic-ref HEAD $(git rev-parse HEAD) +' + +reset_to_sane + +test_expect_success 'HEAD cannot be removed' ' + test_must_fail git symbolic-ref -d HEAD +' + +reset_to_sane + +test_expect_success 'symbolic-ref can be deleted' ' + git symbolic-ref NOTHEAD refs/heads/foo && + git symbolic-ref -d NOTHEAD && + git rev-parse refs/heads/foo && + test_must_fail git symbolic-ref NOTHEAD +' +reset_to_sane + +test_expect_success 'symbolic-ref can delete dangling symref' ' + git symbolic-ref NOTHEAD refs/heads/missing && + git symbolic-ref -d NOTHEAD && + test_must_fail git rev-parse refs/heads/missing && + test_must_fail git symbolic-ref NOTHEAD +' +reset_to_sane + +test_expect_success 'symbolic-ref fails to delete missing FOO' ' + echo "fatal: Cannot delete FOO, not a symbolic ref" >expect && + test_must_fail git symbolic-ref -d FOO >actual 2>&1 && + test_cmp expect actual +' +reset_to_sane + +test_expect_success 'symbolic-ref fails to delete real ref' ' + echo "fatal: Cannot delete refs/heads/foo, not a symbolic ref" >expect && + test_must_fail git symbolic-ref -d refs/heads/foo >actual 2>&1 && + git rev-parse --verify refs/heads/foo && + test_cmp expect actual +' +reset_to_sane + +test_expect_success 'create large ref name' ' + # make 256+ character ref; some systems may not handle that, + # so be gentle + long=0123456789abcdef && + long=$long/$long/$long/$long && + long=$long/$long/$long/$long && + long_ref=refs/heads/$long && + tree=$(git write-tree) && + commit=$(echo foo | git commit-tree $tree) && + if git update-ref $long_ref $commit; then + test_set_prereq LONG_REF + else + echo >&2 "long refs not supported" + fi +' + +test_expect_success LONG_REF 'symbolic-ref can point to large ref name' ' + git symbolic-ref HEAD $long_ref && + echo $long_ref >expect && + git symbolic-ref HEAD >actual && + test_cmp expect actual +' + +test_expect_success LONG_REF 'we can parse long symbolic ref' ' + echo $commit >expect && + git rev-parse --verify HEAD >actual && + test_cmp expect actual +' + +test_expect_success 'symbolic-ref reports failure in exit code' ' + test_when_finished "rm -f .git/HEAD.lock" && + >.git/HEAD.lock && + test_must_fail git symbolic-ref HEAD refs/heads/whatever +' + +test_expect_success 'symbolic-ref writes reflog entry' ' + git checkout -b log1 && + test_commit one && + git checkout -b log2 && + test_commit two && + git checkout --orphan orphan && + git symbolic-ref -m create HEAD refs/heads/log1 && + git symbolic-ref -m update HEAD refs/heads/log2 && + cat >expect <<-\EOF && + update + create + EOF + git log --format=%gs -g -2 >actual && + test_cmp expect actual +' + +test_expect_success 'symbolic-ref does not create ref d/f conflicts' ' + git checkout -b df && + test_commit df && + test_must_fail git symbolic-ref refs/heads/df/conflict refs/heads/df && + git pack-refs --all --prune && + test_must_fail git symbolic-ref refs/heads/df/conflict refs/heads/df +' + +test_expect_success 'symbolic-ref can overwrite pointer to invalid name' ' + test_when_finished reset_to_sane && + head=$(git rev-parse HEAD) && + git symbolic-ref HEAD refs/heads/outer && + test_when_finished "git update-ref -d refs/heads/outer/inner" && + git update-ref refs/heads/outer/inner $head && + git symbolic-ref HEAD refs/heads/unrelated +' + +test_expect_success 'symbolic-ref can resolve d/f name (EISDIR)' ' + test_when_finished reset_to_sane && + head=$(git rev-parse HEAD) && + git symbolic-ref HEAD refs/heads/outer/inner && + test_when_finished "git update-ref -d refs/heads/outer" && + git update-ref refs/heads/outer $head && + echo refs/heads/outer/inner >expect && + git symbolic-ref HEAD >actual && + test_cmp expect actual +' + +test_expect_success 'symbolic-ref can resolve d/f name (ENOTDIR)' ' + test_when_finished reset_to_sane && + head=$(git rev-parse HEAD) && + git symbolic-ref HEAD refs/heads/outer && + test_when_finished "git update-ref -d refs/heads/outer/inner" && + git update-ref refs/heads/outer/inner $head && + echo refs/heads/outer >expect && + git symbolic-ref HEAD >actual && + test_cmp expect actual +' + +test_expect_success 'symbolic-ref refuses invalid target for non-HEAD' ' + test_must_fail git symbolic-ref refs/heads/invalid foo..bar +' + +test_expect_success 'symbolic-ref allows top-level target for non-HEAD' ' + git symbolic-ref refs/heads/top-level FETCH_HEAD && + git update-ref FETCH_HEAD HEAD && + test_cmp_rev top-level HEAD +' + +test_expect_success 'symbolic-ref pointing at another' ' + git update-ref refs/heads/maint-2.37 HEAD && + git symbolic-ref refs/heads/maint refs/heads/maint-2.37 && + git checkout maint && + + git symbolic-ref HEAD >actual && + echo refs/heads/maint-2.37 >expect && + test_cmp expect actual && + + git symbolic-ref --no-recurse HEAD >actual && + echo refs/heads/maint >expect && + test_cmp expect actual +' + +test_done |