| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/mod_pagespeed/mod_pagespeed_metrics.h" |
| |
| #include <algorithm> |
| #include <memory> |
| #include <string> |
| |
| #include "base/memory/ref_counted.h" |
| #include "base/metrics/histogram_macros.h" |
| #include "base/metrics/histogram_samples.h" |
| #include "base/metrics/statistics_recorder.h" |
| #include "content/public/common/resource_type.h" |
| #include "net/http/http_response_headers.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "url/gurl.h" |
| |
| namespace mod_pagespeed { |
| |
| // Ensure that we count PageSpeed headers correctly. |
| TEST(ModPagespeedMetricsTest, CountPageSpeedHeadersTest) { |
| base::StatisticsRecorder::Initialize(); |
| GURL url("http://google.com"); |
| std::string temp("HTTP/1.1 200 OK\n\n"); |
| std::replace(temp.begin(), temp.end(), '\n', '\0'); |
| scoped_refptr<net::HttpResponseHeaders> headers( |
| new net::HttpResponseHeaders(temp)); |
| |
| int num_responses = 0; |
| int num_mps = 0; |
| int num_ngx = 0; |
| int num_pss = 0; |
| int num_other = 0; |
| int num_bucket_1 = 0; // unrecognized format/value bucket |
| int num_bucket_30 = 0; // 1.2.24.1 bucket |
| int num_bucket_33 = 0; // 1.3.25.2 bucket |
| |
| std::unique_ptr<base::HistogramSamples> server_samples; |
| std::unique_ptr<base::HistogramSamples> version_samples; |
| |
| // No PageSpeed header. The VersionCounts histogram isn't created yet. |
| RecordMetrics(content::RESOURCE_TYPE_MAIN_FRAME, url, headers.get()); |
| base::HistogramBase* server_histogram = |
| base::StatisticsRecorder::FindHistogram( |
| "Prerender.PagespeedHeader.ServerCounts"); |
| ASSERT_TRUE(server_histogram != NULL); |
| ASSERT_TRUE(NULL == base::StatisticsRecorder::FindHistogram( |
| "Prerender.PagespeedHeader.VersionCounts")); |
| |
| server_samples = server_histogram->SnapshotSamples(); |
| EXPECT_EQ(++num_responses, server_samples->GetCount(0)); |
| EXPECT_EQ(num_mps, server_samples->GetCount(1)); |
| EXPECT_EQ(num_ngx, server_samples->GetCount(2)); |
| EXPECT_EQ(num_pss, server_samples->GetCount(3)); |
| EXPECT_EQ(num_other, server_samples->GetCount(4)); |
| |
| // X-Mod-Pagespeed header in expected format. VersionCounts now exists. |
| headers->AddHeader("X-Mod-Pagespeed: 1.2.24.1-2300"); |
| RecordMetrics(content::RESOURCE_TYPE_MAIN_FRAME, url, headers.get()); |
| base::HistogramBase* version_histogram = |
| base::StatisticsRecorder::FindHistogram( |
| "Prerender.PagespeedHeader.VersionCounts"); |
| ASSERT_TRUE(version_histogram != NULL); |
| server_samples = server_histogram->SnapshotSamples(); |
| version_samples = version_histogram->SnapshotSamples(); |
| EXPECT_EQ(++num_responses, server_samples->GetCount(0)); |
| EXPECT_EQ(++num_mps, server_samples->GetCount(1)); |
| EXPECT_EQ(num_ngx, server_samples->GetCount(2)); |
| EXPECT_EQ(num_pss, server_samples->GetCount(3)); |
| EXPECT_EQ(num_other, server_samples->GetCount(4)); |
| EXPECT_EQ(num_bucket_1, version_samples->GetCount(1)); |
| EXPECT_EQ(++num_bucket_30, version_samples->GetCount(30)); // +1 for #30 |
| EXPECT_EQ(num_bucket_33, version_samples->GetCount(33)); |
| headers->RemoveHeader("X-Mod-Pagespeed"); |
| |
| // X-Mod-Pagespeed header in expected format, without (optional) SVN commit |
| // number. |
| headers->AddHeader("X-Mod-Pagespeed: 1.2.24.1"); |
| RecordMetrics(content::RESOURCE_TYPE_MAIN_FRAME, url, headers.get()); |
| server_samples = server_histogram->SnapshotSamples(); |
| version_samples = version_histogram->SnapshotSamples(); |
| EXPECT_EQ(++num_responses, server_samples->GetCount(0)); |
| EXPECT_EQ(++num_mps, server_samples->GetCount(1)); |
| EXPECT_EQ(num_ngx, server_samples->GetCount(2)); |
| EXPECT_EQ(num_pss, server_samples->GetCount(3)); |
| EXPECT_EQ(num_other, server_samples->GetCount(4)); |
| EXPECT_EQ(num_bucket_1, version_samples->GetCount(1)); |
| EXPECT_EQ(++num_bucket_30, version_samples->GetCount(30)); // +1 for #30 |
| EXPECT_EQ(num_bucket_33, version_samples->GetCount(33)); |
| headers->RemoveHeader("X-Mod-Pagespeed"); |
| |
| // X-Mod-Pagespeed header in unexpected format. |
| headers->AddHeader("X-Mod-Pagespeed: Powered By PageSpeed!"); |
| RecordMetrics(content::RESOURCE_TYPE_MAIN_FRAME, url, headers.get()); |
| server_samples = server_histogram->SnapshotSamples(); |
| version_samples = version_histogram->SnapshotSamples(); |
| EXPECT_EQ(++num_responses, server_samples->GetCount(0)); |
| EXPECT_EQ(++num_mps, server_samples->GetCount(1)); |
| EXPECT_EQ(num_ngx, server_samples->GetCount(2)); |
| EXPECT_EQ(num_pss, server_samples->GetCount(3)); |
| EXPECT_EQ(num_other, server_samples->GetCount(4)); |
| EXPECT_EQ(++num_bucket_1, version_samples->GetCount(1)); // +1 for 'huh?' |
| EXPECT_EQ(num_bucket_30, version_samples->GetCount(30)); |
| EXPECT_EQ(num_bucket_33, version_samples->GetCount(33)); |
| headers->RemoveHeader("X-Mod-Pagespeed"); |
| |
| // X-Page-Speed header in mod_pagespeed format (so ngx_pagespeed). |
| headers->AddHeader("X-Page-Speed: 1.3.25.2-2530"); |
| RecordMetrics(content::RESOURCE_TYPE_MAIN_FRAME, url, headers.get()); |
| server_samples = server_histogram->SnapshotSamples(); |
| version_samples = version_histogram->SnapshotSamples(); |
| EXPECT_EQ(++num_responses, server_samples->GetCount(0)); |
| EXPECT_EQ(num_mps, server_samples->GetCount(1)); |
| EXPECT_EQ(++num_ngx, server_samples->GetCount(2)); |
| EXPECT_EQ(num_pss, server_samples->GetCount(3)); |
| EXPECT_EQ(num_other, server_samples->GetCount(4)); |
| EXPECT_EQ(num_bucket_1, version_samples->GetCount(1)); |
| EXPECT_EQ(num_bucket_30, version_samples->GetCount(30)); |
| EXPECT_EQ(++num_bucket_33, version_samples->GetCount(33)); // +1 for #33 |
| headers->RemoveHeader("X-Page-Speed"); |
| |
| // X-Page-Speed header in PageSpeed Service format. |
| headers->AddHeader("X-Page-Speed: 97_4_bo"); |
| RecordMetrics(content::RESOURCE_TYPE_MAIN_FRAME, url, headers.get()); |
| server_samples = server_histogram->SnapshotSamples(); |
| version_samples = version_histogram->SnapshotSamples(); |
| EXPECT_EQ(++num_responses, server_samples->GetCount(0)); |
| EXPECT_EQ(num_mps, server_samples->GetCount(1)); // no change |
| EXPECT_EQ(num_ngx, server_samples->GetCount(2)); |
| EXPECT_EQ(++num_pss, server_samples->GetCount(3)); // +1 for PSS |
| EXPECT_EQ(num_other, server_samples->GetCount(4)); |
| EXPECT_EQ(num_bucket_1, version_samples->GetCount(1)); |
| EXPECT_EQ(num_bucket_30, version_samples->GetCount(30)); |
| EXPECT_EQ(num_bucket_33, version_samples->GetCount(33)); |
| headers->RemoveHeader("X-Page-Speed"); |
| |
| // X-Page-Speed header in an unrecognized format (IISpeed in this case). |
| headers->AddHeader("X-Page-Speed: 1.0PS1.2-20130615"); |
| RecordMetrics(content::RESOURCE_TYPE_MAIN_FRAME, url, headers.get()); |
| server_samples = server_histogram->SnapshotSamples(); |
| version_samples = version_histogram->SnapshotSamples(); |
| EXPECT_EQ(++num_responses, server_samples->GetCount(0)); |
| EXPECT_EQ(num_mps, server_samples->GetCount(1)); // no change |
| EXPECT_EQ(num_pss, server_samples->GetCount(3)); |
| EXPECT_EQ(++num_other, server_samples->GetCount(4)); // +1 for 'other' |
| EXPECT_EQ(num_bucket_1, version_samples->GetCount(1)); |
| EXPECT_EQ(num_bucket_30, version_samples->GetCount(30)); |
| EXPECT_EQ(num_bucket_33, version_samples->GetCount(33)); |
| |
| // Not a main frame => not counted at all. |
| RecordMetrics(content::RESOURCE_TYPE_SUB_FRAME, url, headers.get()); |
| server_samples = server_histogram->SnapshotSamples(); |
| version_samples = version_histogram->SnapshotSamples(); |
| EXPECT_EQ(num_responses, server_samples->GetCount(0)); |
| EXPECT_EQ(num_mps, server_samples->GetCount(1)); |
| EXPECT_EQ(num_ngx, server_samples->GetCount(2)); |
| EXPECT_EQ(num_pss, server_samples->GetCount(3)); |
| EXPECT_EQ(num_other, server_samples->GetCount(4)); |
| EXPECT_EQ(num_bucket_1, version_samples->GetCount(1)); |
| EXPECT_EQ(num_bucket_30, version_samples->GetCount(30)); |
| EXPECT_EQ(num_bucket_33, version_samples->GetCount(33)); |
| |
| // Not a http/https URL => not counted at all. |
| GURL data_url("data:image/png;base64,yadda yadda=="); |
| RecordMetrics(content::RESOURCE_TYPE_MAIN_FRAME, data_url, headers.get()); |
| server_samples = server_histogram->SnapshotSamples(); |
| version_samples = version_histogram->SnapshotSamples(); |
| EXPECT_EQ(num_responses, server_samples->GetCount(0)); |
| EXPECT_EQ(num_mps, server_samples->GetCount(1)); |
| EXPECT_EQ(num_ngx, server_samples->GetCount(2)); |
| EXPECT_EQ(num_pss, server_samples->GetCount(3)); |
| EXPECT_EQ(num_other, server_samples->GetCount(4)); |
| EXPECT_EQ(num_bucket_1, version_samples->GetCount(1)); |
| EXPECT_EQ(num_bucket_30, version_samples->GetCount(30)); |
| EXPECT_EQ(num_bucket_33, version_samples->GetCount(33)); |
| |
| headers->RemoveHeader("X-Page-Speed"); |
| } |
| |
| } // namespace mod_pagespeed |