diff --git a/common/mock_hardware.h b/common/mock_hardware.h
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+++ b/common/mock_hardware.h
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+//
+// Copyright (C) 2013 The Android Open Source Project
+//
+// 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.
+//
+
+#ifndef UPDATE_ENGINE_COMMON_MOCK_HARDWARE_H_
+#define UPDATE_ENGINE_COMMON_MOCK_HARDWARE_H_
+
+#include <string>
+
+#include "update_engine/common/fake_hardware.h"
+
+#include <gmock/gmock.h>
+
+namespace chromeos_update_engine {
+
+// A mocked, fake implementation of HardwareInterface.
+class MockHardware : public HardwareInterface {
+ public:
+  MockHardware() {
+    // Delegate all calls to the fake instance
+    ON_CALL(*this, IsOfficialBuild())
+      .WillByDefault(testing::Invoke(&fake_,
+            &FakeHardware::IsOfficialBuild));
+    ON_CALL(*this, IsNormalBootMode())
+      .WillByDefault(testing::Invoke(&fake_,
+            &FakeHardware::IsNormalBootMode));
+    ON_CALL(*this, IsOOBEComplete(testing::_))
+      .WillByDefault(testing::Invoke(&fake_,
+            &FakeHardware::IsOOBEComplete));
+    ON_CALL(*this, GetHardwareClass())
+      .WillByDefault(testing::Invoke(&fake_,
+            &FakeHardware::GetHardwareClass));
+    ON_CALL(*this, GetFirmwareVersion())
+      .WillByDefault(testing::Invoke(&fake_,
+            &FakeHardware::GetFirmwareVersion));
+    ON_CALL(*this, GetECVersion())
+      .WillByDefault(testing::Invoke(&fake_,
+            &FakeHardware::GetECVersion));
+    ON_CALL(*this, GetPowerwashCount())
+      .WillByDefault(testing::Invoke(&fake_,
+            &FakeHardware::GetPowerwashCount));
+    ON_CALL(*this, GetNonVolatileDirectory(testing::_))
+      .WillByDefault(testing::Invoke(&fake_,
+            &FakeHardware::GetNonVolatileDirectory));
+    ON_CALL(*this, GetPowerwashSafeDirectory(testing::_))
+      .WillByDefault(testing::Invoke(&fake_,
+            &FakeHardware::GetPowerwashSafeDirectory));
+  }
+
+  ~MockHardware() override = default;
+
+  // Hardware overrides.
+  MOCK_CONST_METHOD0(IsOfficialBuild, bool());
+  MOCK_CONST_METHOD0(IsNormalBootMode, bool());
+  MOCK_CONST_METHOD1(IsOOBEComplete, bool(base::Time* out_time_of_oobe));
+  MOCK_CONST_METHOD0(GetHardwareClass, std::string());
+  MOCK_CONST_METHOD0(GetFirmwareVersion, std::string());
+  MOCK_CONST_METHOD0(GetECVersion, std::string());
+  MOCK_CONST_METHOD0(GetPowerwashCount, int());
+  MOCK_CONST_METHOD1(GetNonVolatileDirectory, bool(base::FilePath*));
+  MOCK_CONST_METHOD1(GetPowerwashSafeDirectory, bool(base::FilePath*));
+
+  // Returns a reference to the underlying FakeHardware.
+  FakeHardware& fake() {
+    return fake_;
+  }
+
+ private:
+  // The underlying FakeHardware.
+  FakeHardware fake_;
+
+  DISALLOW_COPY_AND_ASSIGN(MockHardware);
+};
+
+
+}  // namespace chromeos_update_engine
+
+#endif  // UPDATE_ENGINE_COMMON_MOCK_HARDWARE_H_