diff --git a/mock_hardware.h b/mock_hardware.h
new file mode 100644
index 0000000..6a27488
--- /dev/null
+++ b/mock_hardware.h
@@ -0,0 +1,78 @@
+// Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROMEOS_PLATFORM_UPDATE_ENGINE_MOCK_HARDWARE_H__
+#define CHROMEOS_PLATFORM_UPDATE_ENGINE_MOCK_HARDWARE_H__
+
+#include "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, BootKernelDevice())
+      .WillByDefault(testing::Invoke(&fake_,
+            &FakeHardware::BootKernelDevice));
+    ON_CALL(*this, BootDevice())
+      .WillByDefault(testing::Invoke(&fake_,
+            &FakeHardware::BootDevice));
+    ON_CALL(*this, IsKernelBootable(testing::_, testing::_))
+      .WillByDefault(testing::Invoke(&fake_,
+            &FakeHardware::IsKernelBootable));
+    ON_CALL(*this, MarkKernelUnbootable(testing::_))
+      .WillByDefault(testing::Invoke(&fake_,
+            &FakeHardware::MarkKernelUnbootable));
+    ON_CALL(*this, IsOfficialBuild())
+      .WillByDefault(testing::Invoke(&fake_,
+            &FakeHardware::IsOfficialBuild));
+    ON_CALL(*this, IsNormalBootMode())
+      .WillByDefault(testing::Invoke(&fake_,
+            &FakeHardware::IsNormalBootMode));
+    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));
+  }
+
+  virtual ~MockHardware() {}
+
+  // Hardware overrides.
+  MOCK_METHOD0(BootKernelDevice, const std::string());
+  MOCK_METHOD0(BootDevice, const std::string());
+  MOCK_METHOD2(IsKernelBootable,
+               bool(const std::string& kernel_device, bool* bootable));
+  MOCK_METHOD1(MarkKernelUnbootable,
+               bool(const std::string& kernel_device));
+  MOCK_METHOD0(IsOfficialBuild, bool());
+  MOCK_METHOD0(IsNormalBootMode, bool());
+  MOCK_METHOD0(GetHardwareClass, std::string());
+  MOCK_METHOD0(GetFirmwareVersion, std::string());
+  MOCK_METHOD0(GetECVersion, std::string());
+
+  // 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  // CHROMEOS_PLATFORM_UPDATE_ENGINE_MOCK_HARDWARE_H__