diff --git a/common/fake_hardware.h b/common/fake_hardware.h
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+++ b/common/fake_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_FAKE_HARDWARE_H_
+#define UPDATE_ENGINE_COMMON_FAKE_HARDWARE_H_
+
+#include <map>
+#include <string>
+
+#include <base/time/time.h>
+
+#include "update_engine/common/hardware_interface.h"
+
+namespace chromeos_update_engine {
+
+// Implements a fake hardware interface used for testing.
+class FakeHardware : public HardwareInterface {
+ public:
+  // Value used to signal that the powerwash_count file is not present. When
+  // this value is used in SetPowerwashCount(), GetPowerwashCount() will return
+  // false.
+  static const int kPowerwashCountNotSet = -1;
+
+  FakeHardware()
+      : is_official_build_(true),
+        is_normal_boot_mode_(true),
+        is_oobe_complete_(false),
+        hardware_class_("Fake HWID BLAH-1234"),
+        firmware_version_("Fake Firmware v1.0.1"),
+        ec_version_("Fake EC v1.0a"),
+        powerwash_count_(kPowerwashCountNotSet) {}
+
+  // HardwareInterface methods.
+  bool IsOfficialBuild() const override { return is_official_build_; }
+
+  bool IsNormalBootMode() const override { return is_normal_boot_mode_; }
+
+  bool IsOOBEComplete(base::Time* out_time_of_oobe) const override {
+    if (out_time_of_oobe != nullptr)
+      *out_time_of_oobe = oobe_timestamp_;
+    return is_oobe_complete_;
+  }
+
+  std::string GetHardwareClass() const override { return hardware_class_; }
+
+  std::string GetFirmwareVersion() const override { return firmware_version_; }
+
+  std::string GetECVersion() const override { return ec_version_; }
+
+  int GetPowerwashCount() const override { return powerwash_count_; }
+
+  bool GetNonVolatileDirectory(base::FilePath* path) const override {
+    return false;
+  }
+
+  bool GetPowerwashSafeDirectory(base::FilePath* path) const override {
+    return false;
+  }
+
+  // Setters
+  void SetIsOfficialBuild(bool is_official_build) {
+    is_official_build_ = is_official_build;
+  }
+
+  void SetIsNormalBootMode(bool is_normal_boot_mode) {
+    is_normal_boot_mode_ = is_normal_boot_mode;
+  }
+
+  // Sets the IsOOBEComplete to True with the given timestamp.
+  void SetIsOOBEComplete(base::Time oobe_timestamp) {
+    is_oobe_complete_ = true;
+    oobe_timestamp_ = oobe_timestamp;
+  }
+
+  // Sets the IsOOBEComplete to False.
+  void UnsetIsOOBEComplete() {
+    is_oobe_complete_ = false;
+  }
+
+  void SetHardwareClass(std::string hardware_class) {
+    hardware_class_ = hardware_class;
+  }
+
+  void SetFirmwareVersion(std::string firmware_version) {
+    firmware_version_ = firmware_version;
+  }
+
+  void SetECVersion(std::string ec_version) {
+    ec_version_ = ec_version;
+  }
+
+  void SetPowerwashCount(int powerwash_count) {
+    powerwash_count_ = powerwash_count;
+  }
+
+ private:
+  bool is_official_build_;
+  bool is_normal_boot_mode_;
+  bool is_oobe_complete_;
+  base::Time oobe_timestamp_;
+  std::string hardware_class_;
+  std::string firmware_version_;
+  std::string ec_version_;
+  int powerwash_count_;
+
+  DISALLOW_COPY_AND_ASSIGN(FakeHardware);
+};
+
+}  // namespace chromeos_update_engine
+
+#endif  // UPDATE_ENGINE_COMMON_FAKE_HARDWARE_H_