strbuf: add strbuf_tolower function

diff --git a/t/t5706-clone-branch.sh b/t/t5706-clone-branch.sh
index f3f9a76056d25fa7d5e4823b1d05ebc1edff46cc..6e7a7be052276613bf5f83551d93b4d90536ea4e 100755 (executable)
--- a/t/t5706-clone-branch.sh
+++ b/t/t5706-clone-branch.sh
@@ -20,7 +20,9 @@ test_expect_success 'setup' '
         echo one >file && git add file && git commit -m one &&
         git checkout -b two &&
         echo two >file && git add file && git commit -m two &&
-        git checkout master)
+        git checkout master) &&
+       mkdir empty &&
+       (cd empty && git init)
 '
 
 test_expect_success 'vanilla clone chooses HEAD' '
@@ -57,12 +59,12 @@ test_expect_success 'clone -b does not munge remotes/origin/HEAD' '
        )
 '
 
-test_expect_success 'clone -b with bogus branch chooses HEAD' '
-       git clone -b bogus parent clone-bogus &&
-       (cd clone-bogus &&
-        check_HEAD master &&
-        check_file one
-       )
+test_expect_success 'clone -b with bogus branch' '
+       test_must_fail git clone -b bogus parent clone-bogus
+'
+
+test_expect_success 'clone -b not allowed with empty repos' '
+       test_must_fail git clone -b branch empty clone-branch-empty
 '
 
 test_done