test_repo 27/sub/sub "$TRASH_DIRECTORY/27/.git" "$TRASH_DIRECTORY"
'
+#
+# case #28
+#
+############################################################
+#
+# Input:
+#
+# - GIT_WORK_TREE is not set
+# - GIT_DIR is not set
+# - core.worktree is set
+# - .git is a file
+# - core.bare is set
+#
+# Output:
+#
+# core.worktree is ignored -> #24
+
+test_expect_success '#28: setup' '
+ unset GIT_DIR GIT_WORK_TREE &&
+ mkdir 28 28/sub &&
+ cd 28 &&
+ git init &&
+ git config core.bare true &&
+ git config core.worktree non-existent &&
+ mv .git ../28.git &&
+ echo gitdir: ../28.git >.git &&
+ cd ..
+'
+
+test_expect_success '#28: at root' '
+ cat >28/expected <<EOF &&
+setup: git_dir: $TRASH_DIRECTORY/28.git
+setup: worktree: (null)
+setup: cwd: $TRASH_DIRECTORY/28
+setup: prefix: (null)
+EOF
+ test_repo 28
+'
+
+test_expect_success '#28: in subdir' '
+ cat >28/sub/expected <<EOF &&
+setup: git_dir: $TRASH_DIRECTORY/28.git
+setup: worktree: (null)
+setup: cwd: $TRASH_DIRECTORY/28/sub
+setup: prefix: (null)
+EOF
+ test_repo 28/sub
+'
+
test_done