test_cmp expected .git/worktrees/source/locked
'
+test_expect_success 'unlock main worktree' '
+ test_must_fail git worktree unlock .
+'
+
+test_expect_success 'unlock linked worktree' '
+ git worktree unlock source &&
+ test_path_is_missing .git/worktrees/source/locked
+'
+
+test_expect_success 'unlock worktree twice' '
+ test_must_fail git worktree unlock source &&
+ test_path_is_missing .git/worktrees/source/locked
+'
+
test_done