Commit a9c92328 for xz

commit a9c92328bdee9b9afc2d8a0a300ad66d8edcf801
Author: Lasse Collin <lasse.collin@tukaani.org>
Date:   Mon Jul 20 20:00:06 2026 +0300

    Tests: Add test file bad-0-index-1.xz

diff --git a/tests/files/README b/tests/files/README
index 584e6ba4..b89c494c 100644
--- a/tests/files/README
+++ b/tests/files/README
@@ -170,6 +170,9 @@

     bad-0-backward_size.xz has wrong Backward Size in Stream Footer.

+    bad-0-index-1.xz has truncated Index that starts with a huge value
+    in Number of Records.
+
     bad-1-stream_flags-1.xz has different Stream Flags in Stream Header
     and Stream Footer.

diff --git a/tests/files/bad-0-index-1.xz b/tests/files/bad-0-index-1.xz
new file mode 100644
index 00000000..98cde8fa
Binary files /dev/null and b/tests/files/bad-0-index-1.xz differ