test-dir-iterator: do not assume errno values

diff --git a/t/t1512-rev-parse-disambiguation.sh b/t/t1512-rev-parse-disambiguation.sh
index e4d5b56014822ff760d3eab6d7c798f8d932ca45..c19fb500cb225273fce730c656fea00a3ada624d 100755 (executable)
--- a/t/t1512-rev-parse-disambiguation.sh
+++ b/t/t1512-rev-parse-disambiguation.sh
@@ -388,4 +388,14 @@ test_expect_success C_LOCALE_OUTPUT 'ambiguous commits are printed by type first
        done
 '
 
+test_expect_success 'cat-file --batch and --batch-check show ambiguous' '
+       echo "0000 ambiguous" >expect &&
+       echo 0000 | git cat-file --batch-check >actual 2>err &&
+       test_cmp expect actual &&
+       test_i18ngrep hint: err &&
+       echo 0000 | git cat-file --batch >actual 2>err &&
+       test_cmp expect actual &&
+       test_i18ngrep hint: err
+'
+
 test_done