log_ref_setup(): improve robustness against races

diff --git a/t/t7060-wtstatus.sh b/t/t7060-wtstatus.sh
index 4d17363a926c8938c6c8d78e997a53ffb81b3c6c..53cf42fac19c83f2da7de1cd5b6c4ca0cf6e5ccf 100755 (executable)
--- a/t/t7060-wtstatus.sh
+++ b/t/t7060-wtstatus.sh
@@ -232,4 +232,25 @@ test_expect_success 'status --branch with detached HEAD' '
        test_i18ncmp expected actual
 '
 
+## Duplicate the above test and verify --porcelain=v1 arg parsing.
+test_expect_success 'status --porcelain=v1 --branch with detached HEAD' '
+       git reset --hard &&
+       git checkout master^0 &&
+       git status --branch --porcelain=v1 >actual &&
+       cat >expected <<-EOF &&
+       ## HEAD (no branch)
+       ?? .gitconfig
+       ?? actual
+       ?? expect
+       ?? expected
+       ?? mdconflict/
+       EOF
+       test_i18ncmp expected actual
+'
+
+## Verify parser error on invalid --porcelain argument.
+test_expect_success 'status --porcelain=bogus' '
+       test_must_fail git status --porcelain=bogus
+'
+
 test_done