diff --git a/tests/unit/curlcheck.h b/tests/unit/curlcheck.h
index 524dbbce8b436b7e25a87a51cbe1701369f11994..360afcac6dc17f2e5f32c4a882a92b4cee512f61 100644
--- a/tests/unit/curlcheck.h
+++ b/tests/unit/curlcheck.h
@@ -23,6 +23,13 @@
     unitfail++;                                          \
   }
 
+#define verify_memory(dynamic, check, len)                              \
+  if(memcmp(dynamic, check, len)) {                                     \
+    fprintf(stderr, "%s:%d The dynamic string didn't match '%s'\n",     \
+            __FILE__, __LINE__, check);                                 \
+    unitfail++;                                                         \
+  }
+
 extern int unitfail;
 
 #define UNITTEST_START                          \