ash/test/ash_test_environment.h

// Copyright 2016 The Chromium 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 ASH_TEST_ASH_TEST_ENVIRONMENT_H_
#define ASH_TEST_ASH_TEST_ENVIRONMENT_H_

#include <memory>
#include <string>

namespace base {
class SequencedWorkerPool;
}

namespace views {
class ViewsDelegate;
}

namespace ash {
namespace test {

// AshTestEnvironment creates objects specific to an environment. Two
// environments are provided, one for content (AshTestEnvironmentContent)
// and one without content (AshTestEnvironmentDefault).
//
// AshTestBase creates an AshTestEnvironment by way of
// AshTestEnvironment::Create(). The implementation of Create() depends upon
// the ash target that was linked against: //ash:test_support_with_content
// includes AshTestEnvironmentContent and //ash:test_support_without_content
// includes AshTestEnvironmentDefault.
class AshTestEnvironment {
 public:
  virtual ~AshTestEnvironment() {}

  // Creates the object appropriate to the current environment.
  static std::unique_ptr<AshTestEnvironment> Create();

  // Returns the ASCII file name of where the 100% resources are stored.
  static std::string Get100PercentResourceFileName();

  // Called from AshTestHelper::SetUp()/TearDown().
  virtual void SetUp() {}
  virtual void TearDown() {}

  virtual base::SequencedWorkerPool* GetBlockingPool() = 0;

  virtual std::unique_ptr<views::ViewsDelegate> CreateViewsDelegate() = 0;

 protected:
  AshTestEnvironment() {}
};

}  // namespace test
}  // namespace ash

#endif  // ASH_TEST_ASH_TEST_ENVIRONMENT_H_