Add deltifier test.

diff --git a/diffcore-break.c b/diffcore-break.c
index 9852f9716cb1a52842044e557c175b19118f19fb..e6a468e6b0371f77e139928cb963b2b7974b9132 100644 (file)
--- a/diffcore-break.c
+++ b/diffcore-break.c
@@ -65,7 +65,9 @@ static int should_break(struct diff_filespec *src,
 
        delta = diff_delta(src->data, src->size,
                           dst->data, dst->size,
-                          &delta_size, ~0UL);
+                          &delta_size, 0);
+       if (!delta)
+               return 0; /* error but caught downstream */
 
        /* Estimate the edit size by interpreting delta. */
        if (count_delta(delta, delta_size,