test-lib: abort when can't remove trash directory

diff --git a/t/t5310-pack-bitmaps.sh b/t/t5310-pack-bitmaps.sh
index b4c7a6ff6b72d5d06ce9fb13bbd74590ff459a0b..424bec7d77c2b3761669230bf30030883ce4c230 100755 (executable)
--- a/t/t5310-pack-bitmaps.sh
+++ b/t/t5310-pack-bitmaps.sh
@@ -118,12 +118,10 @@ test_expect_success 'fetch (partial bitmap)' '
        test_cmp expect actual
 '
 
-test_expect_success 'incremental repack cannot create bitmaps' '
+test_expect_success 'incremental repack fails when bitmaps are requested' '
        test_commit more-1 &&
-       find .git/objects/pack -name "*.bitmap" >expect &&
-       git repack -d &&
-       find .git/objects/pack -name "*.bitmap" >actual &&
-       test_cmp expect actual
+       test_must_fail git repack -d 2>err &&
+       test_i18ngrep "Incremental repacks are incompatible with bitmap" err
 '
 
 test_expect_success 'incremental repack can disable bitmaps' '