diff --git a/test/lpc_mapper_mock.hpp b/test/lpc_mapper_mock.hpp
new file mode 100644
index 0000000..7d84a8a
--- /dev/null
+++ b/test/lpc_mapper_mock.hpp
@@ -0,0 +1,20 @@
+#pragma once
+
+#include "lpc_interface.hpp"
+
+#include <gmock/gmock.h>
+
+namespace blobs
+{
+
+class LpcInterfaceMock : public LpcMapperInterface
+{
+  public:
+    virtual ~LpcInterfaceMock() = default;
+
+    MOCK_METHOD2(mapWindow,
+                 std::pair<std::uint32_t, std::uint32_t>(std::uint32_t,
+                                                         std::uint32_t));
+};
+
+} // namespace blobs