diff --git a/test/hwmonio_mock.hpp b/test/hwmonio_mock.hpp
new file mode 100644
index 0000000..4ad944c
--- /dev/null
+++ b/test/hwmonio_mock.hpp
@@ -0,0 +1,32 @@
+#pragma once
+
+#include <gmock/gmock.h>
+
+#include "hwmonio.hpp"
+
+namespace hwmonio {
+
+class HwmonIOMock : public HwmonIOInterface
+{
+    public:
+        virtual ~HwmonIOMock(){};
+
+        MOCK_CONST_METHOD5(read, int64_t(const std::string&,
+                                         const std::string&,
+                                         const std::string&,
+                                         size_t,
+                                         std::chrono::milliseconds));
+
+        MOCK_CONST_METHOD6(write, void(uint32_t,
+                                       const std::string&,
+                                       const std::string&,
+                                       const std::string&,
+                                       size_t,
+                                       std::chrono::milliseconds));
+
+        MOCK_CONST_METHOD0(path, std::string());
+};
+
+} // namespace hwmonio
+
+// vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4