branch: allow a no-op "branch -M <current-branch> HEAD"

diff --git a/t/t6040-tracking-info.sh b/t/t6040-tracking-info.sh
index cb851326425be7a552a0624a5d7483244625a7ed..19272bc551277903bc1c444f4f0f05d8f2d7d672 100755 (executable)
--- a/t/t6040-tracking-info.sh
+++ b/t/t6040-tracking-info.sh
@@ -48,7 +48,23 @@ test_expect_success 'branch -v' '
                git branch -v
        ) |
        sed -n -e "$script" >actual &&
-       test_cmp expect actual
+       test_i18ncmp expect actual
+'
+
+cat >expect <<\EOF
+b1 origin/master: ahead 1, behind 1
+b2 origin/master: ahead 1, behind 1
+b3 origin/master: behind 1
+b4 origin/master: ahead 2
+EOF
+
+test_expect_success 'branch -vv' '
+       (
+               cd test &&
+               git branch -vv
+       ) |
+       sed -n -e "$script" >actual &&
+       test_i18ncmp expect actual
 '
 
 test_expect_success 'checkout' '
@@ -110,4 +126,18 @@ test_expect_success '--set-upstream does not change branch' '
        grep -q "^refs/heads/master$" actual &&
        cmp expect2 actual2
 '
+
+test_expect_success '--set-upstream @{-1}' '
+       git checkout from-master &&
+       git checkout from-master2 &&
+       git config branch.from-master2.merge > expect2 &&
+       git branch --set-upstream @{-1} follower &&
+       git config branch.from-master.merge > actual &&
+       git config branch.from-master2.merge > actual2 &&
+       git branch --set-upstream from-master follower &&
+       git config branch.from-master.merge > expect &&
+       test_cmp expect2 actual2 &&
+       test_cmp expect actual
+'
+
 test_done