1 // Copyright 2017 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "components/page_load_metrics/common/test/page_load_metrics_test_util.h"
6 
7 #include "components/page_load_metrics/common/page_load_metrics_util.h"
8 
9 using page_load_metrics::OptionalMin;
10 
PopulateRequiredTimingFields(page_load_metrics::mojom::PageLoadTiming * inout_timing)11 void PopulateRequiredTimingFields(
12     page_load_metrics::mojom::PageLoadTiming* inout_timing) {
13   if (inout_timing->paint_timing->first_meaningful_paint &&
14       !inout_timing->paint_timing->first_contentful_paint) {
15     inout_timing->paint_timing->first_contentful_paint =
16         inout_timing->paint_timing->first_meaningful_paint;
17   }
18   if ((inout_timing->paint_timing->first_image_paint ||
19        inout_timing->paint_timing->first_contentful_paint) &&
20       !inout_timing->paint_timing->first_paint) {
21     inout_timing->paint_timing->first_paint =
22         OptionalMin(inout_timing->paint_timing->first_image_paint,
23                     inout_timing->paint_timing->first_contentful_paint);
24   }
25   if (inout_timing->paint_timing->first_paint &&
26       !inout_timing->paint_timing->first_eligible_to_paint) {
27     inout_timing->paint_timing->first_eligible_to_paint =
28         inout_timing->paint_timing->first_paint;
29   }
30   if (inout_timing->document_timing->load_event_start &&
31       !inout_timing->document_timing->dom_content_loaded_event_start) {
32     inout_timing->document_timing->dom_content_loaded_event_start =
33         inout_timing->document_timing->load_event_start;
34   }
35   if (inout_timing->document_timing->dom_content_loaded_event_start &&
36       !inout_timing->parse_timing->parse_stop) {
37     inout_timing->parse_timing->parse_stop =
38         inout_timing->document_timing->dom_content_loaded_event_start;
39   }
40   if (inout_timing->parse_timing->parse_stop &&
41       !inout_timing->parse_timing->parse_start) {
42     inout_timing->parse_timing->parse_start =
43         inout_timing->parse_timing->parse_stop;
44   }
45   if (inout_timing->parse_timing->parse_start &&
46       !inout_timing->response_start) {
47     inout_timing->response_start = inout_timing->parse_timing->parse_start;
48   }
49   if (inout_timing->parse_timing->parse_start) {
50     if (!inout_timing->parse_timing->parse_blocked_on_script_load_duration)
51       inout_timing->parse_timing->parse_blocked_on_script_load_duration =
52           base::TimeDelta();
53     if (!inout_timing->parse_timing
54              ->parse_blocked_on_script_execution_duration) {
55       inout_timing->parse_timing->parse_blocked_on_script_execution_duration =
56           base::TimeDelta();
57     }
58     if (!inout_timing->parse_timing
59              ->parse_blocked_on_script_load_from_document_write_duration) {
60       inout_timing->parse_timing
61           ->parse_blocked_on_script_load_from_document_write_duration =
62           base::TimeDelta();
63     }
64     if (!inout_timing->parse_timing
65              ->parse_blocked_on_script_execution_from_document_write_duration) {
66       inout_timing->parse_timing
67           ->parse_blocked_on_script_execution_from_document_write_duration =
68           base::TimeDelta();
69     }
70   }
71 }
72 
73 // Sets the experimental LCP values to be equal to the non-experimental
74 // counterparts.
PopulateExperimentalLCP(page_load_metrics::mojom::PaintTimingPtr & timing)75 void PopulateExperimentalLCP(page_load_metrics::mojom::PaintTimingPtr& timing) {
76   timing->experimental_largest_contentful_paint =
77       timing->largest_contentful_paint->Clone();
78 }
79 
CreateResource(bool was_cached,int64_t delta_bytes,int64_t encoded_body_length,int64_t decoded_body_length,bool is_complete)80 page_load_metrics::mojom::ResourceDataUpdatePtr CreateResource(
81     bool was_cached,
82     int64_t delta_bytes,
83     int64_t encoded_body_length,
84     int64_t decoded_body_length,
85     bool is_complete) {
86   auto resource_data_update =
87       page_load_metrics::mojom::ResourceDataUpdate::New();
88   resource_data_update->cache_type =
89       was_cached ? page_load_metrics::mojom::CacheType::kHttp
90                  : page_load_metrics::mojom::CacheType::kNotCached;
91   resource_data_update->delta_bytes = delta_bytes;
92   resource_data_update->received_data_length = delta_bytes;
93   resource_data_update->encoded_body_length = encoded_body_length;
94   resource_data_update->decoded_body_length = decoded_body_length;
95   resource_data_update->is_complete = is_complete;
96   return resource_data_update;
97 }
98 
99 std::vector<page_load_metrics::mojom::ResourceDataUpdatePtr>
GetSampleResourceDataUpdateForTesting(int64_t resource_size)100 GetSampleResourceDataUpdateForTesting(int64_t resource_size) {
101   // Prepare 3 resources of varying configurations.
102   std::vector<page_load_metrics::mojom::ResourceDataUpdatePtr> resources;
103   // Cached resource.
104   resources.push_back(CreateResource(true /* was_cached */, 0 /* delta_bytes */,
105                                      resource_size /* encoded_body_length */,
106                                      resource_size /* decoded_body_length */,
107                                      true /* is_complete */));
108   // Uncached resource.
109   resources.push_back(CreateResource(
110       false /* was_cached */, resource_size /* delta_bytes */,
111       resource_size /* encoded_body_length */,
112       resource_size /* decoded_body_length */, true /* is_complete */));
113   // Uncached, unfinished, resource.
114   resources.push_back(
115       CreateResource(false /* was_cached */, resource_size /* delta_bytes */,
116                      0 /* encoded_body_length */, 0 /* decoded_body_length */,
117                      false /* is_complete */));
118   return resources;
119 }
120