test_must_fail git branch -v branch*
'
+test_expect_success 'git branch `--show-current` shows current branch' '
+ cat >expect <<-\EOF &&
+ branch-two
+ EOF
+ git checkout branch-two &&
+ git branch --show-current >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'git branch `--show-current` is silent when detached HEAD' '
+ git checkout HEAD^0 &&
+ git branch --show-current >actual &&
+ test_must_be_empty actual
+'
+
+test_expect_success 'git branch `--show-current` works properly when tag exists' '
+ cat >expect <<-\EOF &&
+ branch-and-tag-name
+ EOF
+ test_when_finished "
+ git checkout branch-one
+ git branch -D branch-and-tag-name
+ " &&
+ git checkout -b branch-and-tag-name &&
+ test_when_finished "git tag -d branch-and-tag-name" &&
+ git tag branch-and-tag-name &&
+ git branch --show-current >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'git branch `--show-current` works properly with worktrees' '
+ cat >expect <<-\EOF &&
+ branch-one
+ branch-two
+ EOF
+ git checkout branch-one &&
+ git worktree add worktree branch-two &&
+ {
+ git branch --show-current &&
+ git -C worktree branch --show-current
+ } >actual &&
+ test_cmp expect actual
+'
+
test_expect_success 'git branch shows detached HEAD properly' '
cat >expect <<EOF &&
* (HEAD detached at $(git rev-parse --short HEAD^0))