instance_database_helper.h

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//
// Copyright (C) 2022 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.
 
#pragma once
 
#include <stdint.h>
 
#include <string>
#include <vector>
 
#include "gtest/gtest.h"
 
#include "cuttlefish/host/commands/cvd/instances/instance_database.h"
 
namespace cuttlefish {
namespace selector {
 
class CvdInstanceDatabaseTest : public ::testing::Test {
 protected:
  enum class ErrorCode : int32_t {
    kOk,
    kFileError,
    kInstanceDabaseError,
  };
 
  struct SetupError {
    ErrorCode error_code;
    std::string msg;
  };
 
  CvdInstanceDatabaseTest();
  ~CvdInstanceDatabaseTest();
 
  bool SetUpOk() const { return error_.error_code == ErrorCode::kOk; }
  const std::string& Workspace() const { return workspace_dir_; }
  /*
   * Returns a valid host artifacts dir, which is a prerequisite for
   * InstanceDatabase APIs.
   */
  const std::string& HostArtifactsPath() const {
    return android_artifacts_path_;
  }
 
  // Adds InstanceGroup by:
  //    "mkdir" : Workspace() + "/" + base_name, HostArtifactsPath()
  //    db_.AddInstanceGroup()
  bool AddGroup(const std::string& base_name,
                const std::vector<std::pair<unsigned, std::string>>& instances);
  InstanceDatabase& GetDb() { return db_; }
  const SetupError& Error() const { return error_; }
 
 private:
  void ClearWorkspace();
  bool InitWorkspace();
  bool InitMockAndroidHostOut();
  // set error_ when there is an error
  void SetErrorCode(ErrorCode error_code, const std::string& msg);
 
  std::string android_artifacts_path_;
  std::string workspace_dir_;
  SetupError error_;
  std::string db_backing_path_;
  int db_backing_fd_;
  InstanceDatabase db_;
};
 
using CvdInstanceDatabaseJsonTest = CvdInstanceDatabaseTest;
 
}  // namespace selector
}  // namespace cuttlefish