fix huge number of declaration security issue
diff --git a/xmltest.cpp b/xmltest.cpp
index a7dbc25..ac0d85c 100644
--- a/xmltest.cpp
+++ b/xmltest.cpp
@@ -2050,6 +2050,18 @@
 			XMLTest("Stack overflow prevented.", XML_ELEMENT_DEPTH_EXCEEDED, doc.ErrorID());

 		}

 	}

+    {

+        const char* TESTS[] = {

+            "./resources/xmltest-5662204197076992.xml",     // Security-level performance issue.

+            0

+        };

+        for (int i = 0; TESTS[i]; ++i) {

+            XMLDocument doc;

+            doc.LoadFile(TESTS[i]);

+            // Need only not crash / lock up.

+            XMLTest("Fuzz attack prevented.", true, true);

+        }

+    }

 	{

 		// Crashing reported via email.

 		const char* xml =