diff --git a/tests/libs/dlopen_testlib_ifunc.c b/tests/libs/dlopen_testlib_ifunc.c
index 1c4bafa..4874841 100644
--- a/tests/libs/dlopen_testlib_ifunc.c
+++ b/tests/libs/dlopen_testlib_ifunc.c
@@ -17,7 +17,22 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+static int g_flag = 0;
+
+static void __attribute__((constructor)) init_flag() {
+  g_flag = 1;
+}
+
 const char* foo() __attribute__ ((ifunc ("foo_ifunc")));
+const char* is_ctor_called() __attribute__ ((ifunc("is_ctor_called_ifun")));
+
+const char* return_true() {
+  return "true";
+}
+
+const char* return_false() {
+  return "false";
+}
 
 const char* f1() {
   return "unset";
@@ -27,6 +42,10 @@
   return "set";
 }
 
+void* is_ctor_called_ifun() {
+  return g_flag == 0 ? return_false : return_true;
+}
+
 void* foo_ifunc() {
    char* choice = getenv("IFUNC_CHOICE");
    return choice == NULL ? f1 : f2;
@@ -34,4 +53,4 @@
 
 const char* foo_library() {
    return foo();
-}
\ No newline at end of file
+}