diff --git a/test/file_system_mock.hpp b/test/file_system_mock.hpp
new file mode 100644
index 0000000..de4f38a
--- /dev/null
+++ b/test/file_system_mock.hpp
@@ -0,0 +1,41 @@
+// Copyright 2022 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#include "file_system_wrapper.hpp"
+
+#include <gmock/gmock.h>
+
+namespace google
+{
+namespace ipmi
+{
+namespace fs = std::filesystem;
+
+class FileSystemMock : public FileSystemInterface
+{
+  public:
+    ~FileSystemMock() = default;
+
+    MOCK_METHOD(bool, exists, (const fs::path&, std::error_code&),
+                (const, override));
+    MOCK_METHOD(void, rename,
+                (const fs::path&, const fs::path&, std::error_code&),
+                (const, override));
+    MOCK_METHOD(void, create, (const char*), (const, override));
+};
+
+} // namespace ipmi
+} // namespace google