1 files changed, 23 insertions, 0 deletions
diff --git a/test/tests.c b/test/tests.c
index 9ef88f4a8d..d8df43f319 100644
--- a/test/tests.c
+++ b/test/tests.c
@@ -12,6 +12,7 @@ static const struct unittest *unittests[] = {
     &test_paths,
     &test_repack_sws,
 #if HAVE_ZIMG
+    &test_repack, // zimg only due to cross-checking with zimg.c
     &test_repack_zimg,
 #endif
     NULL
@@ -128,3 +129,25 @@ void assert_text_files_equal_impl(const char *file, int line,
         abort();
     }
 }
+
+static void hexdump(const uint8_t *d, size_t size)
+{
+    printf("|");
+    while (size--) {
+        printf(" %02x", d[0]);
+        d++;
+    }
+    printf(" |\n");
+}
+
+void assert_memcmp_impl(const char *file, int line,
+                        const void *a, const void *b, size_t size)
+{
+    if (memcmp(a, b, size) == 0)
+        return;
+
+    printf("%s:%d: mismatching data:\n", file, line);
+    hexdump(a, size);
+    hexdump(b, size);
+    abort();
+}