midx: fix segfault with no packs and invalid preferred pack

[thirdparty/git.git] / t / t5319-multi-pack-index.sh

diff --git a/t/t5319-multi-pack-index.sh b/t/t5319-multi-pack-index.sh
index 499d5d4c78590ae16879d8dbd386259d847efb76..0883c7c6bd965d5506ca45a10c2c406a2700707a 100755 (executable)
--- a/t/t5319-multi-pack-index.sh
+++ b/t/t5319-multi-pack-index.sh
@@ -183,6 +183,18 @@ test_expect_success 'write midx with --stdin-packs' '
 
 compare_results_with_midx "mixed mode (one pack + extra)"
 
+test_expect_success 'write with no objects and preferred pack' '
+       test_when_finished "rm -rf empty" &&
+       git init empty &&
+       test_must_fail git -C empty multi-pack-index write \
+               --stdin-packs --preferred-pack=does-not-exist </dev/null 2>err &&
+       cat >expect <<-EOF &&
+       warning: unknown preferred pack: ${SQ}does-not-exist${SQ}
+       error: no pack files to index.
+       EOF
+       test_cmp expect err
+'
+
 test_expect_success 'write progress off for redirected stderr' '
        git multi-pack-index --object-dir=$objdir write 2>err &&
        test_line_count = 0 err