diff --git a/tests/src/utils/generate_unique_mock_id.cpp b/tests/src/utils/generate_unique_mock_id.cpp
new file mode 100644
index 0000000..f3e3f01
--- /dev/null
+++ b/tests/src/utils/generate_unique_mock_id.cpp
@@ -0,0 +1,7 @@
+#include "generate_unique_mock_id.hpp"
+
+uint64_t generateUniqueMockId()
+{
+    static uint64_t id = 0u;
+    return id++;
+}
diff --git a/tests/src/utils/generate_unique_mock_id.hpp b/tests/src/utils/generate_unique_mock_id.hpp
new file mode 100644
index 0000000..6e5192c
--- /dev/null
+++ b/tests/src/utils/generate_unique_mock_id.hpp
@@ -0,0 +1,5 @@
+#pragma once
+
+#include <cstdint>
+
+uint64_t generateUniqueMockId();