t2027-worktree-list has an incorrect expectation for --git-common-dir
which has been adjusted and marked to expect failure.

Some of the tests added have been marked to expect failure.  These
demonstrate a problem with the way that some options to git rev-parse
behave when executed from a subdirectory of the main worktree.

Signed-off-by: Michael Rappazzo <rappa...@gmail.com>
---
 t/t1500-rev-parse.sh     | 28 ++++++++++++++++++++++++++++
 t/t1700-split-index.sh   | 17 +++++++++++++++++
 t/t2027-worktree-list.sh | 12 ++++++++++--
 3 files changed, 55 insertions(+), 2 deletions(-)

diff --git a/t/t1500-rev-parse.sh b/t/t1500-rev-parse.sh
index 038e24c..f39f783 100755
--- a/t/t1500-rev-parse.sh
+++ b/t/t1500-rev-parse.sh
@@ -87,4 +87,32 @@ test_rev_parse -C work -g ../repo.git -b t 
'GIT_DIR=../repo.git, core.bare = tru
 
 test_rev_parse -C work -g ../repo.git -b u 'GIT_DIR=../repo.git, core.bare 
undefined' false false true ''
 
+test_expect_success 'git-common-dir from worktree root' '
+       echo .git >expect &&
+       git rev-parse --git-common-dir >actual &&
+       test_cmp expect actual
+'
+
+test_expect_failure 'git-common-dir inside sub-dir' '
+       mkdir -p path/to/child &&
+       test_when_finished "rm -rf path" &&
+       echo "$(git -C path/to/child rev-parse --show-cdup).git" >expect &&
+       git -C path/to/child rev-parse --git-common-dir >actual &&
+       test_cmp expect actual
+'
+
+test_expect_success 'git-path from worktree root' '
+       echo .git/objects >expect &&
+       git rev-parse --git-path objects >actual &&
+       test_cmp expect actual
+'
+
+test_expect_failure 'git-path inside sub-dir' '
+       mkdir -p path/to/child &&
+       test_when_finished "rm -rf path" &&
+       echo "$(git -C path/to/child rev-parse --show-cdup).git/objects" 
>expect &&
+       git -C path/to/child rev-parse --git-path objects >actual &&
+       test_cmp expect actual
+'
+
 test_done
diff --git a/t/t1700-split-index.sh b/t/t1700-split-index.sh
index 8aef49f..8ca21bd 100755
--- a/t/t1700-split-index.sh
+++ b/t/t1700-split-index.sh
@@ -200,4 +200,21 @@ EOF
        test_cmp expect actual
 '
 
+test_expect_failure 'rev-parse --shared-index-path' '
+       rm -rf .git &&
+       test_create_repo . &&
+       git update-index --split-index &&
+       ls -t .git/sharedindex* | tail -n 1 >expect &&
+       git rev-parse --shared-index-path >actual &&
+       test_cmp expect actual &&
+       mkdir work &&
+       test_when_finished "rm -rf work" &&
+       (
+               cd work &&
+               ls -t ../.git/sharedindex* | tail -n 1 >expect &&
+               git rev-parse --shared-index-path >actual &&
+               test_cmp expect actual
+       )
+'
+
 test_done
diff --git a/t/t2027-worktree-list.sh b/t/t2027-worktree-list.sh
index 1b1b65a..53cc5d3 100755
--- a/t/t2027-worktree-list.sh
+++ b/t/t2027-worktree-list.sh
@@ -8,16 +8,24 @@ test_expect_success 'setup' '
        test_commit init
 '
 
-test_expect_success 'rev-parse --git-common-dir on main worktree' '
+test_expect_failure 'rev-parse --git-common-dir on main worktree' '
        git rev-parse --git-common-dir >actual &&
        echo .git >expected &&
        test_cmp expected actual &&
        mkdir sub &&
        git -C sub rev-parse --git-common-dir >actual2 &&
-       echo sub/.git >expected2 &&
+       echo ../.git >expected2 &&
        test_cmp expected2 actual2
 '
 
+test_expect_failure 'rev-parse --git-path objects linked worktree' '
+       echo "$(git rev-parse 
--show-toplevel)/.git/worktrees/linked-tree/objects" >expect &&
+       test_when_finished "rm -rf linked-tree && git worktree prune" &&
+       git worktree add --detach linked-tree master &&
+       git -C linked-tree rev-parse --git-path objects >actual &&
+       test_cmp expect actual
+'
+
 test_expect_success '"list" all worktrees from main' '
        echo "$(git rev-parse --show-toplevel) $(git rev-parse --short HEAD) 
[$(git symbolic-ref --short HEAD)]" >expect &&
        test_when_finished "rm -rf here && git worktree prune" &&
-- 
2.8.0

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