1 // Copyright (c) 2011 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 "chrome/browser/prerender/prerender_util.h" 6 7 #include "base/metrics/histogram.h" 8 #include "base/metrics/histogram_samples.h" 9 #include "base/metrics/statistics_recorder.h" 10 #include "net/http/http_response_headers.h" 11 #include "testing/gtest/include/gtest/gtest.h" 12 #include "url/gurl.h" 13 14 namespace prerender { 15 16 class PrerenderUtilTest : public testing::Test { 17 public: 18 PrerenderUtilTest() { 19 } 20 }; 21 22 // Ensure that extracting a urlencoded URL in the url= query string component 23 // works. 24 TEST_F(PrerenderUtilTest, ExtractURLInQueryStringTest) { 25 GURL result; 26 EXPECT_TRUE(MaybeGetQueryStringBasedAliasURL( 27 GURL("http://www.google.com/url?sa=t&source=web&cd=1&ved=0CBcQFjAA&url=http%3A%2F%2Fwww.abercrombie.com%2Fwebapp%2Fwcs%2Fstores%2Fservlet%2FStoreLocator%3FcatalogId%3D%26storeId%3D10051%26langId%3D-1&rct=j&q=allinurl%3A%26&ei=KLyUTYGSEdTWiAKUmLCdCQ&usg=AFQjCNF8nJ2MpBFfr1ijO39_f22bcKyccw&sig2=2ymyGpO0unJwU1d4kdCUjQ"), 28 &result)); 29 ASSERT_EQ(GURL("http://www.abercrombie.com/webapp/wcs/stores/servlet/StoreLocator?catalogId=&storeId=10051&langId=-1").spec(), result.spec()); 30 EXPECT_FALSE(MaybeGetQueryStringBasedAliasURL( 31 GURL("http://www.google.com/url?sadf=test&blah=blahblahblah"), &result)); 32 EXPECT_FALSE(MaybeGetQueryStringBasedAliasURL( 33 GURL("http://www.google.com/?url=INVALIDurlsAREsoMUCHfun.com"), &result)); 34 EXPECT_TRUE(MaybeGetQueryStringBasedAliasURL( 35 GURL("http://www.google.com/?url=http://validURLSareGREAT.com"), 36 &result)); 37 ASSERT_EQ(GURL("http://validURLSareGREAT.com").spec(), result.spec()); 38 } 39 40 // Ensure that extracting an experiment in the lpe= query string component 41 // works. 42 TEST_F(PrerenderUtilTest, ExtractExperimentInQueryStringTest) { 43 EXPECT_EQ(GetQueryStringBasedExperiment( 44 GURL("http://www.google.com/url?sa=t&source=web&cd=1&ved=0CBcQFjAA&url=http%3A%2F%2Fwww.abercrombie.com%2Fwebapp%2Fwcs%2Fstores%2Fservlet%2FStoreLocator%3FcatalogId%3D%26storeId%3D10051%26langId%3D-1&rct=j&q=allinurl%3A%26&ei=KLyUTYGSEdTWiAKUmLCdCQ&usg=AFQjCNF8nJ2MpBFfr1ijO39_f22bcKyccw&sig2=2ymyGpO0unJwU1d4kdCUjQ&lpe=4&asdf=test")), 4); 45 EXPECT_EQ(GetQueryStringBasedExperiment( 46 GURL("http://www.google.com/test.php?a=b")), kNoExperiment); 47 EXPECT_EQ(GetQueryStringBasedExperiment( 48 GURL("http://www.google.com/test.php?lpe=5")), 5); 49 EXPECT_EQ(GetQueryStringBasedExperiment( 50 GURL("http://www.google.com/test.php?lpe=50")), kNoExperiment); 51 EXPECT_EQ(GetQueryStringBasedExperiment( 52 GURL("http://www.google.com/test.php?lpe=0")), kNoExperiment); 53 EXPECT_EQ(GetQueryStringBasedExperiment( 54 GURL("http://www.google.com/test.php?lpe=10")), kNoExperiment); 55 } 56 57 // Ensure that we detect Google search result URLs correctly. 58 TEST_F(PrerenderUtilTest, DetectGoogleSearchREsultURLTest) { 59 EXPECT_TRUE(IsGoogleSearchResultURL(GURL("http://www.google.com/#asdf"))); 60 EXPECT_TRUE(IsGoogleSearchResultURL(GURL("http://www.google.com/"))); 61 EXPECT_TRUE(IsGoogleSearchResultURL(GURL("http://www.google.com/?a=b"))); 62 EXPECT_TRUE(IsGoogleSearchResultURL( 63 GURL("http://www.google.com/search?q=hi"))); 64 EXPECT_TRUE(IsGoogleSearchResultURL(GURL("http://www.google.com/search"))); 65 EXPECT_TRUE(IsGoogleSearchResultURL(GURL("http://www.google.com/webhp"))); 66 EXPECT_TRUE(IsGoogleSearchResultURL( 67 GURL("http://www.google.com/webhp?a=b#123"))); 68 EXPECT_FALSE(IsGoogleSearchResultURL(GURL("http://www.google.com/imgres"))); 69 EXPECT_FALSE(IsGoogleSearchResultURL( 70 GURL("http://www.google.com/imgres?q=hi"))); 71 EXPECT_FALSE(IsGoogleSearchResultURL( 72 GURL("http://www.google.com/imgres?q=hi#123"))); 73 EXPECT_FALSE(IsGoogleSearchResultURL(GURL("http://google.com/search"))); 74 EXPECT_TRUE(IsGoogleSearchResultURL(GURL("http://WWW.GooGLE.CoM/search"))); 75 EXPECT_FALSE(IsGoogleSearchResultURL(GURL("http://WWW.GooGLE.CoM/SeArcH"))); 76 EXPECT_TRUE(IsGoogleSearchResultURL(GURL("http://www.google.co.uk/search"))); 77 EXPECT_FALSE(IsGoogleSearchResultURL(GURL("http://google.co.uk/search"))); 78 EXPECT_FALSE(IsGoogleSearchResultURL(GURL("http://www.chromium.org/search"))); 79 } 80 81 // Ensure that we count PageSpeed headers correctly. 82 TEST_F(PrerenderUtilTest, CountPageSpeedHeadersTest) { 83 base::StatisticsRecorder::Initialize(); 84 GURL url("http://google.com"); 85 std::string temp("HTTP/1.1 200 OK\n\n"); 86 std::replace(temp.begin(), temp.end(), '\n', '\0'); 87 scoped_refptr<net::HttpResponseHeaders> headers( 88 new net::HttpResponseHeaders(temp)); 89 90 int num_responses = 0; 91 int num_mps = 0; 92 int num_ngx = 0; 93 int num_pss = 0; 94 int num_other = 0; 95 int num_bucket_1 = 0; // unrecognized format/value bucket 96 int num_bucket_30 = 0; // 1.2.24.1 bucket 97 int num_bucket_33 = 0; // 1.3.25.2 bucket 98 99 scoped_ptr<base::HistogramSamples> server_samples; 100 scoped_ptr<base::HistogramSamples> version_samples; 101 102 // No PageSpeed header. The VersionCounts histogram isn't created yet. 103 GatherPagespeedData(ResourceType::MAIN_FRAME, url, headers.get()); 104 base::HistogramBase* server_histogram = 105 base::StatisticsRecorder::FindHistogram( 106 "Prerender.PagespeedHeader.ServerCounts"); 107 ASSERT_TRUE(server_histogram != NULL); 108 ASSERT_TRUE(NULL == base::StatisticsRecorder::FindHistogram( 109 "Prerender.PagespeedHeader.VersionCounts")); 110 111 server_samples = server_histogram->SnapshotSamples(); 112 EXPECT_EQ(++num_responses, server_samples->GetCount(0)); 113 EXPECT_EQ( num_mps, server_samples->GetCount(1)); 114 EXPECT_EQ( num_ngx, server_samples->GetCount(2)); 115 EXPECT_EQ( num_pss, server_samples->GetCount(3)); 116 EXPECT_EQ( num_other, server_samples->GetCount(4)); 117 118 // X-Mod-Pagespeed header in expected format. VersionCounts now exists. 119 headers->AddHeader("X-Mod-Pagespeed: 1.2.24.1-2300"); 120 GatherPagespeedData(ResourceType::MAIN_FRAME, url, headers.get()); 121 base::HistogramBase* version_histogram = 122 base::StatisticsRecorder::FindHistogram( 123 "Prerender.PagespeedHeader.VersionCounts"); 124 ASSERT_TRUE(version_histogram != NULL); 125 server_samples = server_histogram->SnapshotSamples(); 126 version_samples = version_histogram->SnapshotSamples(); 127 EXPECT_EQ(++num_responses, server_samples->GetCount(0)); 128 EXPECT_EQ(++num_mps, server_samples->GetCount(1)); 129 EXPECT_EQ( num_ngx, server_samples->GetCount(2)); 130 EXPECT_EQ( num_pss, server_samples->GetCount(3)); 131 EXPECT_EQ( num_other, server_samples->GetCount(4)); 132 EXPECT_EQ( num_bucket_1, version_samples->GetCount(1)); 133 EXPECT_EQ(++num_bucket_30, version_samples->GetCount(30)); // +1 for #30 134 EXPECT_EQ( num_bucket_33, version_samples->GetCount(33)); 135 headers->RemoveHeader("X-Mod-Pagespeed"); 136 137 // X-Mod-Pagespeed header in unexpected format. 138 headers->AddHeader("X-Mod-Pagespeed: Powered By PageSpeed!"); 139 GatherPagespeedData(ResourceType::MAIN_FRAME, url, headers.get()); 140 server_samples = server_histogram->SnapshotSamples(); 141 version_samples = version_histogram->SnapshotSamples(); 142 EXPECT_EQ(++num_responses, server_samples->GetCount(0)); 143 EXPECT_EQ(++num_mps, server_samples->GetCount(1)); 144 EXPECT_EQ( num_ngx, server_samples->GetCount(2)); 145 EXPECT_EQ( num_pss, server_samples->GetCount(3)); 146 EXPECT_EQ( num_other, server_samples->GetCount(4)); 147 EXPECT_EQ(++num_bucket_1, version_samples->GetCount(1)); // +1 for 'huh?' 148 EXPECT_EQ( num_bucket_30, version_samples->GetCount(30)); 149 EXPECT_EQ( num_bucket_33, version_samples->GetCount(33)); 150 headers->RemoveHeader("X-Mod-Pagespeed"); 151 152 // X-Page-Speed header in mod_pagespeed format (so ngx_pagespeed). 153 headers->AddHeader("X-Page-Speed: 1.3.25.2-2530"); 154 GatherPagespeedData(ResourceType::MAIN_FRAME, url, headers.get()); 155 server_samples = server_histogram->SnapshotSamples(); 156 version_samples = version_histogram->SnapshotSamples(); 157 EXPECT_EQ(++num_responses, server_samples->GetCount(0)); 158 EXPECT_EQ( num_mps, server_samples->GetCount(1)); 159 EXPECT_EQ(++num_ngx, server_samples->GetCount(2)); 160 EXPECT_EQ( num_pss, server_samples->GetCount(3)); 161 EXPECT_EQ( num_other, server_samples->GetCount(4)); 162 EXPECT_EQ( num_bucket_1, version_samples->GetCount(1)); 163 EXPECT_EQ( num_bucket_30, version_samples->GetCount(30)); 164 EXPECT_EQ(++num_bucket_33, version_samples->GetCount(33)); // +1 for #33 165 headers->RemoveHeader("X-Page-Speed"); 166 167 // X-Page-Speed header in PageSpeed Service format. 168 headers->AddHeader("X-Page-Speed: 97_4_bo"); 169 GatherPagespeedData(ResourceType::MAIN_FRAME, url, headers.get()); 170 server_samples = server_histogram->SnapshotSamples(); 171 version_samples = version_histogram->SnapshotSamples(); 172 EXPECT_EQ(++num_responses, server_samples->GetCount(0)); 173 EXPECT_EQ( num_mps, server_samples->GetCount(1)); // no change 174 EXPECT_EQ( num_ngx, server_samples->GetCount(2)); 175 EXPECT_EQ(++num_pss, server_samples->GetCount(3)); // +1 for PSS 176 EXPECT_EQ( num_other, server_samples->GetCount(4)); 177 EXPECT_EQ( num_bucket_1, version_samples->GetCount(1)); 178 EXPECT_EQ( num_bucket_30, version_samples->GetCount(30)); 179 EXPECT_EQ( num_bucket_33, version_samples->GetCount(33)); 180 headers->RemoveHeader("X-Page-Speed"); 181 182 // X-Page-Speed header in an unrecognized format (IISpeed in this case). 183 headers->AddHeader("X-Page-Speed: 1.0PS1.2-20130615"); 184 GatherPagespeedData(ResourceType::MAIN_FRAME, url, headers.get()); 185 server_samples = server_histogram->SnapshotSamples(); 186 version_samples = version_histogram->SnapshotSamples(); 187 EXPECT_EQ(++num_responses, server_samples->GetCount(0)); 188 EXPECT_EQ( num_mps, server_samples->GetCount(1)); // no change 189 EXPECT_EQ( num_pss, server_samples->GetCount(3)); 190 EXPECT_EQ(++num_other, server_samples->GetCount(4)); // +1 for 'other' 191 EXPECT_EQ( num_bucket_1, version_samples->GetCount(1)); 192 EXPECT_EQ( num_bucket_30, version_samples->GetCount(30)); 193 EXPECT_EQ( num_bucket_33, version_samples->GetCount(33)); 194 195 // Not a main frame => not counted at all. 196 GatherPagespeedData(ResourceType::SUB_FRAME, url, headers.get()); 197 server_samples = server_histogram->SnapshotSamples(); 198 version_samples = version_histogram->SnapshotSamples(); 199 EXPECT_EQ( num_responses, server_samples->GetCount(0)); 200 EXPECT_EQ( num_mps, server_samples->GetCount(1)); 201 EXPECT_EQ( num_ngx, server_samples->GetCount(2)); 202 EXPECT_EQ( num_pss, server_samples->GetCount(3)); 203 EXPECT_EQ( num_other, server_samples->GetCount(4)); 204 EXPECT_EQ( num_bucket_1, version_samples->GetCount(1)); 205 EXPECT_EQ( num_bucket_30, version_samples->GetCount(30)); 206 EXPECT_EQ( num_bucket_33, version_samples->GetCount(33)); 207 208 // Not a http/https URL => not counted at all. 209 GURL data_url("data:image/png;base64,yadda yadda=="); 210 GatherPagespeedData(ResourceType::MAIN_FRAME, data_url, headers.get()); 211 server_samples = server_histogram->SnapshotSamples(); 212 version_samples = version_histogram->SnapshotSamples(); 213 EXPECT_EQ( num_responses, server_samples->GetCount(0)); 214 EXPECT_EQ( num_mps, server_samples->GetCount(1)); 215 EXPECT_EQ( num_ngx, server_samples->GetCount(2)); 216 EXPECT_EQ( num_pss, server_samples->GetCount(3)); 217 EXPECT_EQ( num_other, server_samples->GetCount(4)); 218 EXPECT_EQ( num_bucket_1, version_samples->GetCount(1)); 219 EXPECT_EQ( num_bucket_30, version_samples->GetCount(30)); 220 EXPECT_EQ( num_bucket_33, version_samples->GetCount(33)); 221 222 headers->RemoveHeader("X-Page-Speed"); 223 } 224 225 } // namespace prerender 226
