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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_PERFORMANCE_MANAGER_TEST_SUPPORT_TEST_BROWSER_CHILD_PROCESS_H_
#define COMPONENTS_PERFORMANCE_MANAGER_TEST_SUPPORT_TEST_BROWSER_CHILD_PROCESS_H_
#include <memory>
#include "base/process/process.h"
#include "components/performance_manager/public/browser_child_process_host_id.h"
#include "components/performance_manager/public/browser_child_process_host_proxy.h"
#include "content/public/browser/browser_child_process_host.h"
#include "content/public/browser/browser_child_process_host_delegate.h"
namespace performance_manager {
// A wrapper that owns a BrowserChildProcessHost and acts as a no-op
// BrowserChildProcessHostDelegate.
//
// In production, a process and associated ProcessNode is created for
// this by calling host()->Launch(), but in unit tests this has unsatisfied
// dependencies so a ProcessNode can be created by calling SimulateLaunch().
class TestBrowserChildProcess final
: public content::BrowserChildProcessHostDelegate {
public:
explicit TestBrowserChildProcess(content::ProcessType process_type);
~TestBrowserChildProcess() final;
TestBrowserChildProcess(const TestBrowserChildProcess&) = delete;
TestBrowserChildProcess& operator=(const TestBrowserChildProcess&) = delete;
content::BrowserChildProcessHost* host() const { return host_.get(); }
BrowserChildProcessHostId GetId() const;
BrowserChildProcessHostProxy GetProxy() const;
// Simulates a call to host()->Launch(), which causes a
// BrowserChildProcessWatcher to create a ProcessNode for the host. This can
// be used to create a ProcessNode in unit tests that don't satisfy all the
// dependencies to launch a real utility procses.
void SimulateLaunch(base::Process process = base::Process::Current());
// Simulates that a process launched with SimulateLaunch() has exited. This
// causes BrowserChildProcessWatcher to delete the ProcessNode for the host.
void SimulateDisconnect();
private:
std::unique_ptr<content::BrowserChildProcessHost> host_;
bool is_connected = false;
};
// Helper function for tests to delete the browser process node, which is
// created by default in BrowserChildProcessWatcher::Initialize(). Must not be
// called again if the node was already deleted.
void DeleteBrowserProcessNodeForTesting();
} // namespace performance_manager
#endif // COMPONENTS_PERFORMANCE_MANAGER_TEST_SUPPORT_TEST_BROWSER_CHILD_PROCESS_H_
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