// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/page_load_metrics/common/page_load_metrics_debug_string.h"

#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/mojom/navigation/navigation_type_for_navigation_api.mojom-shared.h"

namespace page_load_metrics {

TEST(PageLoadMetricsDebugStringTest, SoftNavigationMetrics) {
  mojom::SoftNavigationMetrics soft_navigation_metrics;
  soft_navigation_metrics.performance_timeline_navigation_id = 2;
  soft_navigation_metrics.commit = mojom::SoftNavigationCommit::New();
  soft_navigation_metrics.commit->start_time = base::Milliseconds(123);
  soft_navigation_metrics.commit->soft_navigation_slicing_time =
      base::TimeTicks() + base::Milliseconds(42);
  soft_navigation_metrics.commit->navigation_type =
      blink::mojom::NavigationTypeForNavigationApi::kReplace;
  soft_navigation_metrics.first_contentful_paint = base::Milliseconds(456);

  EXPECT_EQ(DebugString(soft_navigation_metrics),
            "{performance_timeline_navigation_id: 2, start_time: 123, "
            "soft_navigation_slicing_time: 42, "
            "navigation_type: kReplace, "
            "first_contentful_paint: 456}");
}

TEST(PageLoadMetricsDebugStringTest, PageLoadTiming) {
  mojom::PageLoadTiming timing;
  timing.navigation_start = base::Time::FromMillisecondsSinceUnixEpoch(1000);
  timing.response_start = base::Milliseconds(10);
  timing.document_timing = mojom::DocumentTiming::New();
  timing.document_timing->dom_content_loaded_event_start =
      base::Milliseconds(20);
  timing.paint_timing = mojom::PaintTiming::New();
  timing.paint_timing->first_paint = base::Milliseconds(30);

  auto bfcache_timing = mojom::BackForwardCacheTiming::New();
  bfcache_timing->first_paint_after_back_forward_cache_restore =
      base::Milliseconds(120);
  bfcache_timing->request_animation_frames_after_back_forward_cache_restore
      .emplace_back(base::Milliseconds(24));
  bfcache_timing->request_animation_frames_after_back_forward_cache_restore
      .emplace_back(base::Milliseconds(73));
  timing.back_forward_cache_timings.emplace_back(std::move(bfcache_timing));
  auto bfcache_timing2 = mojom::BackForwardCacheTiming::New();
  bfcache_timing2->first_paint_after_back_forward_cache_restore =
      base::Milliseconds(150);
  timing.back_forward_cache_timings.emplace_back(std::move(bfcache_timing2));

  EXPECT_EQ(DebugString(timing),
            "{navigation_start: 1000, "
            "response_start: 10, "
            "document_timing: {dom_content_loaded_event_start: 20}, "
            "paint_timing: {first_paint: 30}, "
            "back_forward_cache_timings: "
            "[{first_paint_after_back_forward_cache_restore: 120, "
            "request_animation_frames_after_back_forward_cache_restore: "
            "[24, 73]}, "
            "{first_paint_after_back_forward_cache_restore: 150}]}");
}

}  // namespace page_load_metrics