chromium/components/page_load_metrics/browser/fake_page_load_metrics_observer_delegate.h

// Copyright 2021 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_PAGE_LOAD_METRICS_BROWSER_FAKE_PAGE_LOAD_METRICS_OBSERVER_DELEGATE_H_
#define COMPONENTS_PAGE_LOAD_METRICS_BROWSER_FAKE_PAGE_LOAD_METRICS_OBSERVER_DELEGATE_H_

#include "base/memory/raw_ptr.h"
#include "base/time/time.h"
#include "components/page_load_metrics/browser/page_load_metrics_observer.h"
#include "components/page_load_metrics/browser/page_load_metrics_observer_delegate.h"
#include "components/page_load_metrics/common/page_end_reason.h"
#include "content/public/browser/web_contents.h"
#include "url/gurl.h"

namespace page_load_metrics {

// A fake page load metrics observer delegate for use in unit tests.
// Almost all of the methods in this implementation simply return a backing
// instance variable (defaulting to null/zero values). Tests should configure
// the delegate's backing variables as appropriate for their scenarios. One
// exception is the BackForwardCacheRestore related methods - the
// BackForwardCacheRestore state structs are stored in an internal vector. Use
// |AddBackForwardCacheRestore| and |ClearBackForwardCacheRestores| to manage
// the fake delegate's vector of BackForwardCacheRestore states.
// If a backing instance variable doesn't exist for a method you need to fake,
// please add it with an appropriate default/zero value.
class FakePageLoadMetricsObserverDelegate
    : public PageLoadMetricsObserverDelegate { … };

}  // namespace page_load_metrics

#endif  // COMPONENTS_PAGE_LOAD_METRICS_BROWSER_FAKE_PAGE_LOAD_METRICS_OBSERVER_DELEGATE_H_