t1450: use egrep for regexp "alternation"

diff --git a/t/t2025-worktree-add.sh b/t/t2025-worktree-add.sh
index 3a22fc55fc324fbfbfdcdf39fb71e829c89729b5..4bcc335a19f9d7864560945ed0f430728d0f1986 100755 (executable)
--- a/t/t2025-worktree-add.sh
+++ b/t/t2025-worktree-add.sh
@@ -20,6 +20,22 @@ test_expect_success '"add" an existing empty worktree' '
        git worktree add --detach existing_empty master
 '
 
+test_expect_success '"add" using shorthand - fails when no previous branch' '
+       test_must_fail git worktree add existing_short -
+'
+
+test_expect_success '"add" using - shorthand' '
+       git checkout -b newbranch &&
+       echo hello >myworld &&
+       git add myworld &&
+       git commit -m myworld &&
+       git checkout master &&
+       git worktree add short-hand - &&
+       echo refs/heads/newbranch >expect &&
+       git -C short-hand rev-parse --symbolic-full-name HEAD >actual &&
+       test_cmp expect actual
+'
+
 test_expect_success '"add" refuses to checkout locked branch' '
        test_must_fail git worktree add zere master &&
        ! test -d zere &&