git-remote-testpy: don't do unbuffered text I/O

diff --git a/t/t7406-submodule-update.sh b/t/t7406-submodule-update.sh
index feaec6cdf4b8c7eac348ea1de61887c93c69244d..4975ec07ce614c8473f7f5638a008d7058730f06 100755 (executable)
--- a/t/t7406-submodule-update.sh
+++ b/t/t7406-submodule-update.sh
@@ -135,6 +135,37 @@ test_expect_success 'submodule update --force forcibly checks out submodules' '
        )
 '
 
+test_expect_success 'submodule update --remote should fetch upstream changes' '
+       (cd submodule &&
+        echo line4 >> file &&
+        git add file &&
+        test_tick &&
+        git commit -m "upstream line4"
+       ) &&
+       (cd super &&
+        git submodule update --remote --force submodule &&
+        cd submodule &&
+        test "$(git log -1 --oneline)" = "$(GIT_DIR=../../submodule/.git git log -1 --oneline)"
+       )
+'
+
+test_expect_success 'local config should override .gitmodules branch' '
+       (cd submodule &&
+        git checkout -b test-branch &&
+        echo line5 >> file &&
+        git add file &&
+        test_tick &&
+        git commit -m "upstream line5" &&
+        git checkout master
+       ) &&
+       (cd super &&
+        git config submodule.submodule.branch test-branch &&
+        git submodule update --remote --force submodule &&
+        cd submodule &&
+        test "$(git log -1 --oneline)" = "$(GIT_DIR=../../submodule/.git git log -1 --oneline test-branch)"
+       )
+'
+
 test_expect_success 'submodule update --rebase staying on master' '
        (cd super/submodule &&
          git checkout master