diff --git a/test/mock_network_manager.hpp b/test/mock_network_manager.hpp
new file mode 100644
index 0000000..a71301e
--- /dev/null
+++ b/test/mock_network_manager.hpp
@@ -0,0 +1,28 @@
+#include "config.h"
+
+#include "network_manager.hpp"
+
+#include <gmock/gmock.h>
+
+namespace phosphor
+{
+namespace network
+{
+
+class MockManager : public phosphor::network::Manager
+{
+  public:
+    MockManager(sdbusplus::bus::bus& bus, const char* path,
+                const std::string& dir) :
+        phosphor::network::Manager(bus, path, dir)
+    {
+    }
+
+    MOCK_METHOD1(restartSystemdUnit, void(const std::string& service));
+
+    friend class TestNetworkManager;
+    friend class TestRtNetlink;
+};
+
+} // namespace network
+} // namespace phosphor