src/chrome/browser/autocomplete/history_url_provider_unittest.cc

   1 // Copyright (c) 2012 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/autocomplete/history_url_provider.h"
   6
   7 #include <algorithm>
   8
   9 #include "base/message_loop/message_loop.h"
  10 #include "base/path_service.h"
  11 #include "base/prefs/pref_service.h"
  12 #include "base/strings/string_util.h"
  13 #include "base/strings/utf_string_conversions.h"
  14 #include "base/time/time.h"
  15 #include "chrome/browser/autocomplete/chrome_autocomplete_scheme_classifier.h"
  16 #include "chrome/browser/autocomplete/history_quick_provider.h"
  17 #include "chrome/browser/history/history_service.h"
  18 #include "chrome/browser/history/history_service_factory.h"
  19 #include "chrome/browser/search_engines/chrome_template_url_service_client.h"
  20 #include "chrome/browser/search_engines/template_url_service_factory.h"
  21 #include "chrome/common/pref_names.h"
  22 #include "chrome/test/base/testing_browser_process.h"
  23 #include "chrome/test/base/testing_profile.h"
  24 #include "components/history/core/browser/url_database.h"
  25 #include "components/metrics/proto/omnibox_event.pb.h"
  26 #include "components/metrics/proto/omnibox_input_type.pb.h"
  27 #include "components/omnibox/autocomplete_match.h"
  28 #include "components/omnibox/autocomplete_provider.h"
  29 #include "components/omnibox/autocomplete_provider_listener.h"
  30 #include "components/omnibox/autocomplete_result.h"
  31 #include "components/search_engines/search_terms_data.h"
  32 #include "components/search_engines/template_url.h"
  33 #include "components/search_engines/template_url_service.h"
  34 #include "components/url_fixer/url_fixer.h"
  35 #include "content/public/test/test_browser_thread_bundle.h"
  36 #include "testing/gtest/include/gtest/gtest.h"
  37
  38 using base::ASCIIToUTF16;
  39 using base::Time;
  40 using base::TimeDelta;
  41
  42 using content::TestBrowserThreadBundle;
  43
  44 struct TestURLInfo {
  45   const char* url;
  46   const char* title;
  47   int visit_count;
  48   int typed_count;
  49   int age_in_days;
  50 } test_db[] = {
  51   {"http://www.google.com/", "Google", 3, 3, 80},
  52
  53   // High-quality pages should get a host synthesized as a lower-quality match.
  54   {"http://slashdot.org/favorite_page.html", "Favorite page", 200, 100, 80},
  55
  56   // Less popular pages should have hosts synthesized as higher-quality
  57   // matches.
  58   {"http://kerneltrap.org/not_very_popular.html", "Less popular", 4, 0, 80},
  59
  60   // Unpopular pages should not appear in the results at all.
  61   {"http://freshmeat.net/unpopular.html", "Unpopular", 1, 0, 80},
  62
  63   // If a host has a match, we should pick it up during host synthesis.
  64   {"http://news.google.com/?ned=us&topic=n", "Google News - U.S.", 2, 2, 80},
  65   {"http://news.google.com/", "Google News", 1, 1, 80},
  66
  67   // Matches that are normally not inline-autocompletable should be
  68   // autocompleted if they are shorter substitutes for longer matches that would
  69   // have been inline autocompleted.
  70   {"http://synthesisatest.com/foo/", "Test A", 1, 1, 80},
  71   {"http://synthesisbtest.com/foo/", "Test B", 1, 1, 80},
  72   {"http://synthesisbtest.com/foo/bar.html", "Test B Bar", 2, 2, 80},
  73
  74   // Suggested short URLs must be "good enough" and must match user input.
  75   {"http://foo.com/", "Dir", 5, 5, 80},
  76   {"http://foo.com/dir/", "Dir", 2, 2, 80},
  77   {"http://foo.com/dir/another/", "Dir", 5, 1, 80},
  78   {"http://foo.com/dir/another/again/", "Dir", 10, 0, 80},
  79   {"http://foo.com/dir/another/again/myfile.html", "File", 10, 2, 80},
  80
  81   // We throw in a lot of extra URLs here to make sure we're testing the
  82   // history database's query, not just the autocomplete provider.
  83   {"http://startest.com/y/a", "A", 2, 2, 80},
  84   {"http://startest.com/y/b", "B", 5, 2, 80},
  85   {"http://startest.com/x/c", "C", 5, 2, 80},
  86   {"http://startest.com/x/d", "D", 5, 5, 80},
  87   {"http://startest.com/y/e", "E", 4, 2, 80},
  88   {"http://startest.com/y/f", "F", 3, 2, 80},
  89   {"http://startest.com/y/g", "G", 3, 2, 80},
  90   {"http://startest.com/y/h", "H", 3, 2, 80},
  91   {"http://startest.com/y/i", "I", 3, 2, 80},
  92   {"http://startest.com/y/j", "J", 3, 2, 80},
  93   {"http://startest.com/y/k", "K", 3, 2, 80},
  94   {"http://startest.com/y/l", "L", 3, 2, 80},
  95   {"http://startest.com/y/m", "M", 3, 2, 80},
  96
  97   // A file: URL is useful for testing that fixup does the right thing w.r.t.
  98   // the number of trailing slashes on the user's input.
  99   {"file:///C:/foo.txt", "", 2, 2, 80},
 100
 101   // Results with absurdly high typed_counts so that very generic queries like
 102   // "http" will give consistent results even if more data is added above.
 103   {"http://bogussite.com/a", "Bogus A", 10002, 10000, 80},
 104   {"http://bogussite.com/b", "Bogus B", 10001, 10000, 80},
 105   {"http://bogussite.com/c", "Bogus C", 10000, 10000, 80},
 106
 107   // Domain name with number.
 108   {"http://www.17173.com/", "Domain with number", 3, 3, 80},
 109
 110   // URLs to test exact-matching behavior.
 111   {"http://go/", "Intranet URL", 1, 1, 80},
 112   {"http://gooey/", "Intranet URL 2", 5, 5, 80},
 113
 114   // URLs for testing offset adjustment.
 115   {"http://www.\xEA\xB5\x90\xEC\x9C\xA1.kr/", "Korean", 2, 2, 80},
 116   {"http://spaces.com/path%20with%20spaces/foo.html", "Spaces", 2, 2, 80},
 117   {"http://ms/c++%20style%20guide", "Style guide", 2, 2, 80},
 118
 119   // URLs for testing ctrl-enter behavior.
 120   {"http://binky/", "Intranet binky", 2, 2, 80},
 121   {"http://winky/", "Intranet winky", 2, 2, 80},
 122   {"http://www.winky.com/", "Internet winky", 5, 0, 80},
 123
 124   // URLs used by EmptyVisits.
 125   {"http://pandora.com/", "Pandora", 2, 2, 80},
 126   // This entry is explicitly added more recently than
 127   // history::kLowQualityMatchAgeLimitInDays.
 128   // {"http://p/", "p", 0, 0, 80},
 129
 130   // For intranet based tests.
 131   {"http://intra/one", "Intranet", 2, 2, 80},
 132   {"http://intra/two", "Intranet two", 1, 1, 80},
 133   {"http://intra/three", "Intranet three", 2, 2, 80},
 134   {"http://moo/bar", "Intranet moo", 1, 1, 80},
 135   {"http://typedhost/typedpath", "Intranet typed", 1, 1, 80},
 136   {"http://typedhost/untypedpath", "Intranet untyped", 1, 0, 80},
 137
 138   {"http://x.com/one", "Internet", 2, 2, 80},
 139   {"http://x.com/two", "Internet two", 1, 1, 80},
 140   {"http://x.com/three", "Internet three", 2, 2, 80},
 141
 142   // For experimental HUP scoring test.
 143   {"http://7.com/1a", "One", 8, 4, 4},
 144   {"http://7.com/2a", "Two A", 4, 2, 8},
 145   {"http://7.com/2b", "Two B", 4, 1, 8},
 146   {"http://7.com/3a", "Three", 2, 1, 16},
 147   {"http://7.com/4a", "Four A", 1, 1, 32},
 148   {"http://7.com/4b", "Four B", 1, 1, 64},
 149   {"http://7.com/5a", "Five A", 8, 0, 64},  // never typed.
 150 };
 151
 152 class HistoryURLProviderTest : public testing::Test,
 153                                public AutocompleteProviderListener {
 154  public:
 155   struct UrlAndLegalDefault {
 156     std::string url;
 157     bool allowed_to_be_default_match;
 158   };
 159
 160   HistoryURLProviderTest()
 161       : sort_matches_(false) {
 162     HistoryQuickProvider::set_disabled(true);
 163   }
 164
 165   virtual ~HistoryURLProviderTest() {
 166     HistoryQuickProvider::set_disabled(false);
 167   }
 168
 169   // AutocompleteProviderListener:
 170   virtual void OnProviderUpdate(bool updated_matches) OVERRIDE;
 171
 172  protected:
 173   static KeyedService* CreateTemplateURLService(
 174       content::BrowserContext* context) {
 175     Profile* profile = static_cast<Profile*>(context);
 176     return new TemplateURLService(
 177         profile->GetPrefs(), make_scoped_ptr(new SearchTermsData), NULL,
 178         scoped_ptr<TemplateURLServiceClient>(
 179             new ChromeTemplateURLServiceClient(profile)),
 180         NULL, NULL, base::Closure());
 181   }
 182
 183   // testing::Test
 184   virtual void SetUp() {
 185     ASSERT_TRUE(SetUpImpl(false));
 186   }
 187   virtual void TearDown();
 188
 189   // Does the real setup.
 190   bool SetUpImpl(bool no_db) WARN_UNUSED_RESULT;
 191
 192   // Fills test data into the history system.
 193   void FillData();
 194
 195   // Runs an autocomplete query on |text| and checks to see that the returned
 196   // results' destination URLs match those provided.  Also allows checking
 197   // that the input type was identified correctly.
 198   void RunTest(const base::string16 text,
 199                const base::string16& desired_tld,
 200                bool prevent_inline_autocomplete,
 201                const UrlAndLegalDefault* expected_urls,
 202                size_t num_results,
 203                metrics::OmniboxInputType::Type* identified_input_type);
 204
 205   // A version of the above without the final |type| output parameter.
 206   void RunTest(const base::string16 text,
 207                const base::string16& desired_tld,
 208                bool prevent_inline_autocomplete,
 209                const UrlAndLegalDefault* expected_urls,
 210                size_t num_results) {
 211     metrics::OmniboxInputType::Type type;
 212     return RunTest(text, desired_tld, prevent_inline_autocomplete,
 213                    expected_urls, num_results, &type);
 214   }
 215
 216   content::TestBrowserThreadBundle thread_bundle_;
 217   ACMatches matches_;
 218   scoped_ptr<TestingProfile> profile_;
 219   HistoryService* history_service_;
 220   scoped_refptr<HistoryURLProvider> autocomplete_;
 221   // Should the matches be sorted and duplicates removed?
 222   bool sort_matches_;
 223 };
 224
 225 class HistoryURLProviderTestNoDB : public HistoryURLProviderTest {
 226  protected:
 227   virtual void SetUp() {
 228     ASSERT_TRUE(SetUpImpl(true));
 229   }
 230 };
 231
 232 void HistoryURLProviderTest::OnProviderUpdate(bool updated_matches) {
 233   if (autocomplete_->done())
 234     base::MessageLoop::current()->Quit();
 235 }
 236
 237 bool HistoryURLProviderTest::SetUpImpl(bool no_db) {
 238   profile_.reset(new TestingProfile());
 239   if (!(profile_->CreateHistoryService(true, no_db)))
 240     return false;
 241   if (!no_db) {
 242     profile_->BlockUntilHistoryProcessesPendingRequests();
 243     profile_->BlockUntilHistoryIndexIsRefreshed();
 244   }
 245   profile_->GetPrefs()->SetString(prefs::kAcceptLanguages, "en-US,en,ko");
 246   history_service_ = HistoryServiceFactory::GetForProfile(
 247       profile_.get(), Profile::EXPLICIT_ACCESS);
 248
 249   autocomplete_ = new HistoryURLProvider(this, profile_.get());
 250   TemplateURLServiceFactory::GetInstance()->SetTestingFactoryAndUse(
 251       profile_.get(), &HistoryURLProviderTest::CreateTemplateURLService);
 252   FillData();
 253   return true;
 254 }
 255
 256 void HistoryURLProviderTest::TearDown() {
 257   autocomplete_ = NULL;
 258 }
 259
 260 void HistoryURLProviderTest::FillData() {
 261   // Most visits are a long time ago (some tests require this since we do some
 262   // special logic for things visited very recently). Note that this time must
 263   // be more recent than the "expire history" threshold for the data to be kept
 264   // in the main database.
 265   //
 266   // TODO(brettw) It would be nice if we could test this behavior, in which
 267   // case the time would be specifed in the test_db structure.
 268   const Time now = Time::Now();
 269
 270   for (size_t i = 0; i < arraysize(test_db); ++i) {
 271     const TestURLInfo& cur = test_db[i];
 272     const GURL current_url(cur.url);
 273     history_service_->AddPageWithDetails(
 274         current_url, base::UTF8ToUTF16(cur.title), cur.visit_count,
 275         cur.typed_count, now - TimeDelta::FromDays(cur.age_in_days), false,
 276         history::SOURCE_BROWSED);
 277   }
 278
 279   history_service_->AddPageWithDetails(
 280       GURL("http://p/"), base::UTF8ToUTF16("p"), 0, 0,
 281       Time::Now() -
 282       TimeDelta::FromDays(history::kLowQualityMatchAgeLimitInDays - 1),
 283       false, history::SOURCE_BROWSED);
 284 }
 285
 286 void HistoryURLProviderTest::RunTest(
 287     const base::string16 text,
 288     const base::string16& desired_tld,
 289     bool prevent_inline_autocomplete,
 290     const UrlAndLegalDefault* expected_urls,
 291     size_t num_results,
 292     metrics::OmniboxInputType::Type* identified_input_type) {
 293   AutocompleteInput input(text, base::string16::npos, desired_tld, GURL(),
 294                           metrics::OmniboxEventProto::INVALID_SPEC,
 295                           prevent_inline_autocomplete, false, true, true,
 296                           ChromeAutocompleteSchemeClassifier(profile_.get()));
 297   *identified_input_type = input.type();
 298   autocomplete_->Start(input, false);
 299   if (!autocomplete_->done())
 300     base::MessageLoop::current()->Run();
 301
 302   matches_ = autocomplete_->matches();
 303   if (sort_matches_) {
 304     TemplateURLService* service =
 305         TemplateURLServiceFactory::GetForProfile(profile_.get());
 306     for (ACMatches::iterator i = matches_.begin(); i != matches_.end(); ++i)
 307       i->ComputeStrippedDestinationURL(service);
 308     AutocompleteResult::DedupMatchesByDestination(
 309         input.current_page_classification(), false, &matches_);
 310     std::sort(matches_.begin(), matches_.end(),
 311               &AutocompleteMatch::MoreRelevant);
 312   }
 313   ASSERT_EQ(num_results, matches_.size()) << "Input text: " << text
 314                                           << "\nTLD: \"" << desired_tld << "\"";
 315   for (size_t i = 0; i < num_results; ++i) {
 316     EXPECT_EQ(expected_urls[i].url, matches_[i].destination_url.spec());
 317     EXPECT_EQ(expected_urls[i].allowed_to_be_default_match,
 318               matches_[i].allowed_to_be_default_match);
 319   }
 320 }
 321
 322 TEST_F(HistoryURLProviderTest, PromoteShorterURLs) {
 323   // Test that hosts get synthesized below popular pages.
 324   const UrlAndLegalDefault expected_nonsynth[] = {
 325     { "http://slashdot.org/favorite_page.html", false },
 326     { "http://slashdot.org/", false }
 327   };
 328   RunTest(ASCIIToUTF16("slash"), base::string16(), true, expected_nonsynth,
 329           arraysize(expected_nonsynth));
 330
 331   // Test that hosts get synthesized above less popular pages.
 332   const UrlAndLegalDefault expected_synth[] = {
 333     { "http://kerneltrap.org/", false },
 334     { "http://kerneltrap.org/not_very_popular.html", false }
 335   };
 336   RunTest(ASCIIToUTF16("kernel"), base::string16(), true, expected_synth,
 337           arraysize(expected_synth));
 338
 339   // Test that unpopular pages are ignored completely.
 340   RunTest(ASCIIToUTF16("fresh"), base::string16(), true, NULL, 0);
 341
 342   // Test that if we create or promote shorter suggestions that would not
 343   // normally be inline autocompletable, we make them inline autocompletable if
 344   // the original suggestion (that we replaced as "top") was inline
 345   // autocompletable.
 346   const UrlAndLegalDefault expected_synthesisa[] = {
 347     { "http://synthesisatest.com/", true },
 348     { "http://synthesisatest.com/foo/", true }
 349   };
 350   RunTest(ASCIIToUTF16("synthesisa"), base::string16(), false,
 351           expected_synthesisa, arraysize(expected_synthesisa));
 352   EXPECT_LT(matches_.front().relevance, 1200);
 353   const UrlAndLegalDefault expected_synthesisb[] = {
 354     { "http://synthesisbtest.com/foo/", true },
 355     { "http://synthesisbtest.com/foo/bar.html", true }
 356   };
 357   RunTest(ASCIIToUTF16("synthesisb"), base::string16(), false,
 358           expected_synthesisb, arraysize(expected_synthesisb));
 359   EXPECT_GE(matches_.front().relevance, 1410);
 360
 361   // Test that if we have a synthesized host that matches a suggestion, they
 362   // get combined into one.
 363   const UrlAndLegalDefault expected_combine[] = {
 364     { "http://news.google.com/", false },
 365     { "http://news.google.com/?ned=us&topic=n", false },
 366   };
 367   ASSERT_NO_FATAL_FAILURE(RunTest(ASCIIToUTF16("news"), base::string16(), true,
 368       expected_combine, arraysize(expected_combine)));
 369   // The title should also have gotten set properly on the host for the
 370   // synthesized one, since it was also in the results.
 371   EXPECT_EQ(ASCIIToUTF16("Google News"), matches_.front().description);
 372
 373   // Test that short URL matching works correctly as the user types more
 374   // (several tests):
 375   // The entry for foo.com is the best of all five foo.com* entries.
 376   const UrlAndLegalDefault short_1[] = {
 377     { "http://foo.com/", false },
 378     { "http://foo.com/dir/another/again/myfile.html", false },
 379     { "http://foo.com/dir/", false }
 380   };
 381   RunTest(ASCIIToUTF16("foo"), base::string16(), true,
 382           short_1, arraysize(short_1));
 383
 384   // When the user types the whole host, make sure we don't get two results for
 385   // it.
 386   const UrlAndLegalDefault short_2[] = {
 387     { "http://foo.com/", true },
 388     { "http://foo.com/dir/another/again/myfile.html", false },
 389     { "http://foo.com/dir/", false },
 390     { "http://foo.com/dir/another/", false }
 391   };
 392   RunTest(ASCIIToUTF16("foo.com"), base::string16(), true, short_2,
 393           arraysize(short_2));
 394   RunTest(ASCIIToUTF16("foo.com/"), base::string16(), true, short_2,
 395           arraysize(short_2));
 396
 397   // The filename is the second best of the foo.com* entries, but there is a
 398   // shorter URL that's "good enough".  The host doesn't match the user input
 399   // and so should not appear.
 400   const UrlAndLegalDefault short_3[] = {
 401     { "http://foo.com/d", true },
 402     { "http://foo.com/dir/another/", false },
 403     { "http://foo.com/dir/another/again/myfile.html", false },
 404     { "http://foo.com/dir/", false }
 405   };
 406   RunTest(ASCIIToUTF16("foo.com/d"), base::string16(), true, short_3,
 407           arraysize(short_3));
 408
 409   // We shouldn't promote shorter URLs than the best if they're not good
 410   // enough.
 411   const UrlAndLegalDefault short_4[] = {
 412     { "http://foo.com/dir/another/a", true },
 413     { "http://foo.com/dir/another/again/myfile.html", false },
 414     { "http://foo.com/dir/another/again/", false }
 415   };
 416   RunTest(ASCIIToUTF16("foo.com/dir/another/a"), base::string16(), true,
 417           short_4, arraysize(short_4));
 418
 419   // Exact matches should always be best no matter how much more another match
 420   // has been typed.
 421   const UrlAndLegalDefault short_5a[] = {
 422     { "http://gooey/", true },
 423     { "http://www.google.com/", true },
 424     { "http://go/", true }
 425   };
 426   const UrlAndLegalDefault short_5b[] = {
 427     { "http://go/", true },
 428     { "http://gooey/", true },
 429     { "http://www.google.com/", true }
 430   };
 431   RunTest(ASCIIToUTF16("g"), base::string16(), false,
 432           short_5a, arraysize(short_5a));
 433   RunTest(ASCIIToUTF16("go"), base::string16(), false,
 434           short_5b, arraysize(short_5b));
 435 }
 436
 437 TEST_F(HistoryURLProviderTest, CullRedirects) {
 438   // URLs we will be using, plus the visit counts they will initially get
 439   // (the redirect set below will also increment the visit counts). We want
 440   // the results to be in A,B,C order. Note also that our visit counts are
 441   // all high enough so that domain synthesizing won't get triggered.
 442   struct TestCase {
 443     const char* url;
 444     int count;
 445   } test_cases[] = {
 446     {"http://redirects/A", 30},
 447     {"http://redirects/B", 20},
 448     {"http://redirects/C", 10}
 449   };
 450   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_cases); ++i) {
 451     history_service_->AddPageWithDetails(GURL(test_cases[i].url),
 452         ASCIIToUTF16("Title"), test_cases[i].count, test_cases[i].count,
 453         Time::Now(), false, history::SOURCE_BROWSED);
 454   }
 455
 456   // Create a B->C->A redirect chain, but set the visit counts such that they
 457   // will appear in A,B,C order in the results. The autocomplete query will
 458   // search for the most recent visit when looking for redirects, so this will
 459   // be found even though the previous visits had no redirects.
 460   history::RedirectList redirects_to_a;
 461   redirects_to_a.push_back(GURL(test_cases[1].url));
 462   redirects_to_a.push_back(GURL(test_cases[2].url));
 463   redirects_to_a.push_back(GURL(test_cases[0].url));
 464   history_service_->AddPage(GURL(test_cases[0].url), base::Time::Now(),
 465       NULL, 0, GURL(), redirects_to_a, content::PAGE_TRANSITION_TYPED,
 466       history::SOURCE_BROWSED, true);
 467
 468   // Because all the results are part of a redirect chain with other results,
 469   // all but the first one (A) should be culled. We should get the default
 470   // "what you typed" result, plus this one.
 471   const base::string16 typing(ASCIIToUTF16("http://redirects/"));
 472   const UrlAndLegalDefault expected_results[] = {
 473     { base::UTF16ToUTF8(typing), true },
 474     { test_cases[0].url, false }
 475   };
 476   RunTest(typing, base::string16(), true, expected_results,
 477           arraysize(expected_results));
 478 }
 479
 480 TEST_F(HistoryURLProviderTest, WhatYouTyped) {
 481   // Make sure we suggest a What You Typed match at the right times.
 482   RunTest(ASCIIToUTF16("wytmatch"), base::string16(), false, NULL, 0);
 483   RunTest(ASCIIToUTF16("wytmatch foo bar"), base::string16(), false, NULL, 0);
 484   RunTest(ASCIIToUTF16("wytmatch+foo+bar"), base::string16(), false, NULL, 0);
 485   RunTest(ASCIIToUTF16("wytmatch+foo+bar.com"), base::string16(), false,
 486           NULL, 0);
 487
 488   const UrlAndLegalDefault results_1[] = {
 489     { "http://www.wytmatch.com/", true }
 490   };
 491   RunTest(ASCIIToUTF16("wytmatch"), ASCIIToUTF16("com"), false, results_1,
 492           arraysize(results_1));
 493
 494   const UrlAndLegalDefault results_2[] = {
 495     { "http://wytmatch%20foo%20bar/", true }
 496   };
 497   RunTest(ASCIIToUTF16("http://wytmatch foo bar"), base::string16(), false,
 498           results_2, arraysize(results_2));
 499
 500   const UrlAndLegalDefault results_3[] = {
 501     { "https://wytmatch%20foo%20bar/", true }
 502   };
 503   RunTest(ASCIIToUTF16("https://wytmatch foo bar"), base::string16(), false,
 504           results_3, arraysize(results_3));
 505 }
 506
 507 TEST_F(HistoryURLProviderTest, Fixup) {
 508   // Test for various past crashes we've had.
 509   RunTest(ASCIIToUTF16("\\"), base::string16(), false, NULL, 0);
 510   RunTest(ASCIIToUTF16("#"), base::string16(), false, NULL, 0);
 511   RunTest(ASCIIToUTF16("%20"), base::string16(), false, NULL, 0);
 512   const UrlAndLegalDefault fixup_crash[] = {
 513     { "http://%EF%BD%A5@s/", true }
 514   };
 515   RunTest(base::WideToUTF16(L"\uff65@s"), base::string16(), false, fixup_crash,
 516           arraysize(fixup_crash));
 517   RunTest(base::WideToUTF16(L"\u2015\u2015@ \uff7c"), base::string16(), false,
 518           NULL, 0);
 519
 520   // Fixing up "file:" should result in an inline autocomplete offset of just
 521   // after "file:", not just after "file://".
 522   const base::string16 input_1(ASCIIToUTF16("file:"));
 523   const UrlAndLegalDefault fixup_1[] = {
 524     { "file:///C:/foo.txt", true }
 525   };
 526   ASSERT_NO_FATAL_FAILURE(RunTest(input_1, base::string16(), false, fixup_1,
 527                                   arraysize(fixup_1)));
 528   EXPECT_EQ(ASCIIToUTF16("///C:/foo.txt"),
 529             matches_.front().inline_autocompletion);
 530
 531   // Fixing up "http:/" should result in an inline autocomplete offset of just
 532   // after "http:/", not just after "http:".
 533   const base::string16 input_2(ASCIIToUTF16("http:/"));
 534   const UrlAndLegalDefault fixup_2[] = {
 535     { "http://bogussite.com/a", true },
 536     { "http://bogussite.com/b", true },
 537     { "http://bogussite.com/c", true }
 538   };
 539   ASSERT_NO_FATAL_FAILURE(RunTest(input_2, base::string16(), false, fixup_2,
 540                                   arraysize(fixup_2)));
 541   EXPECT_EQ(ASCIIToUTF16("/bogussite.com/a"),
 542             matches_.front().inline_autocompletion);
 543
 544   // Adding a TLD to a small number like "56" should result in "www.56.com"
 545   // rather than "0.0.0.56.com".
 546   const UrlAndLegalDefault fixup_3[] = {
 547     { "http://www.56.com/", true }
 548   };
 549   RunTest(ASCIIToUTF16("56"), ASCIIToUTF16("com"), true, fixup_3,
 550           arraysize(fixup_3));
 551
 552   // An input looks like a IP address like "127.0.0.1" should result in
 553   // "http://127.0.0.1/".
 554   const UrlAndLegalDefault fixup_4[] = {
 555     { "http://127.0.0.1/", true }
 556   };
 557   RunTest(ASCIIToUTF16("127.0.0.1"), base::string16(), false, fixup_4,
 558           arraysize(fixup_4));
 559
 560   // An number "17173" should result in "http://www.17173.com/" in db.
 561   const UrlAndLegalDefault fixup_5[] = {
 562     { "http://www.17173.com/", true }
 563   };
 564   RunTest(ASCIIToUTF16("17173"), base::string16(), false, fixup_5,
 565           arraysize(fixup_5));
 566 }
 567
 568 // Make sure the results for the input 'p' don't change between the first and
 569 // second passes.
 570 TEST_F(HistoryURLProviderTest, EmptyVisits) {
 571   // Wait for history to create the in memory DB.
 572   profile_->BlockUntilHistoryProcessesPendingRequests();
 573
 574   AutocompleteInput input(ASCIIToUTF16("p"), base::string16::npos,
 575                           base::string16(), GURL(),
 576                           metrics::OmniboxEventProto::INVALID_SPEC, false,
 577                           false, true, true,
 578                           ChromeAutocompleteSchemeClassifier(profile_.get()));
 579   autocomplete_->Start(input, false);
 580   // HistoryURLProvider shouldn't be done (waiting on async results).
 581   EXPECT_FALSE(autocomplete_->done());
 582
 583   // We should get back an entry for pandora.
 584   matches_ = autocomplete_->matches();
 585   ASSERT_GT(matches_.size(), 0u);
 586   EXPECT_EQ(GURL("http://pandora.com/"), matches_[0].destination_url);
 587   int pandora_relevance = matches_[0].relevance;
 588
 589   // Run the message loop. When |autocomplete_| finishes the loop is quit.
 590   base::MessageLoop::current()->Run();
 591   EXPECT_TRUE(autocomplete_->done());
 592   matches_ = autocomplete_->matches();
 593   ASSERT_GT(matches_.size(), 0u);
 594   EXPECT_EQ(GURL("http://pandora.com/"), matches_[0].destination_url);
 595   EXPECT_EQ(pandora_relevance, matches_[0].relevance);
 596 }
 597
 598 TEST_F(HistoryURLProviderTestNoDB, NavigateWithoutDB) {
 599   // Ensure that we will still produce matches for navigation when there is no
 600   // database.
 601   UrlAndLegalDefault navigation_1[] = {
 602     { "http://test.com/", true }
 603   };
 604   RunTest(ASCIIToUTF16("test.com"), base::string16(), false, navigation_1,
 605           arraysize(navigation_1));
 606
 607   UrlAndLegalDefault navigation_2[] = {
 608     { "http://slash/", true }
 609   };
 610   RunTest(ASCIIToUTF16("slash"), base::string16(), false, navigation_2,
 611           arraysize(navigation_2));
 612
 613   RunTest(ASCIIToUTF16("this is a query"), base::string16(), false, NULL, 0);
 614 }
 615
 616 TEST_F(HistoryURLProviderTest, DontAutocompleteOnTrailingWhitespace) {
 617   AutocompleteInput input(ASCIIToUTF16("slash "), base::string16::npos,
 618                           base::string16(), GURL(),
 619                           metrics::OmniboxEventProto::INVALID_SPEC, false,
 620                           false, true, true,
 621                           ChromeAutocompleteSchemeClassifier(profile_.get()));
 622   autocomplete_->Start(input, false);
 623   if (!autocomplete_->done())
 624     base::MessageLoop::current()->Run();
 625
 626   // None of the matches should attempt to autocomplete.
 627   matches_ = autocomplete_->matches();
 628   for (size_t i = 0; i < matches_.size(); ++i) {
 629     EXPECT_TRUE(matches_[i].inline_autocompletion.empty());
 630     EXPECT_FALSE(matches_[i].allowed_to_be_default_match);
 631   }
 632 }
 633
 634 TEST_F(HistoryURLProviderTest, TreatEmailsAsSearches) {
 635   // Visiting foo.com should not make this string be treated as a navigation.
 636   // That means the result should be scored around 1200 ("what you typed")
 637   // and not 1400+.
 638   const UrlAndLegalDefault expected[] = {
 639     { "http://user@foo.com/", true }
 640   };
 641   ASSERT_NO_FATAL_FAILURE(RunTest(ASCIIToUTF16("user@foo.com"),
 642                                   base::string16(), false, expected,
 643                                   arraysize(expected)));
 644   EXPECT_LE(1200, matches_[0].relevance);
 645   EXPECT_LT(matches_[0].relevance, 1210);
 646 }
 647
 648 TEST_F(HistoryURLProviderTest, IntranetURLsWithPaths) {
 649   struct TestCase {
 650     const char* input;
 651     int relevance;
 652   } test_cases[] = {
 653     { "fooey", 0 },
 654     { "fooey/", 1200 },     // 1200 for URL would still navigate by default.
 655     { "fooey/a", 1200 },    // 1200 for UNKNOWN would not.
 656     { "fooey/a b", 1200 },  // Also UNKNOWN.
 657     { "gooey", 1410 },
 658     { "gooey/", 1410 },
 659     { "gooey/a", 1400 },
 660     { "gooey/a b", 1400 },
 661   };
 662   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_cases); ++i) {
 663     SCOPED_TRACE(test_cases[i].input);
 664     if (test_cases[i].relevance == 0) {
 665       RunTest(ASCIIToUTF16(test_cases[i].input), base::string16(), false,
 666               NULL, 0);
 667     } else {
 668       const UrlAndLegalDefault output[] = {
 669           {url_fixer::FixupURL(test_cases[i].input, std::string()).spec(),
 670            true}};
 671       ASSERT_NO_FATAL_FAILURE(RunTest(ASCIIToUTF16(test_cases[i].input),
 672                               base::string16(), false,
 673                               output, arraysize(output)));
 674       // Actual relevance should be at least what test_cases expects and
 675       // and no more than 10 more.
 676       EXPECT_LE(test_cases[i].relevance, matches_[0].relevance);
 677       EXPECT_LT(matches_[0].relevance, test_cases[i].relevance + 10);
 678     }
 679   }
 680 }
 681
 682 TEST_F(HistoryURLProviderTest, IntranetURLsWithRefs) {
 683   struct TestCase {
 684     const char* input;
 685     int relevance;
 686     metrics::OmniboxInputType::Type type;
 687   } test_cases[] = {
 688     { "gooey", 1410, metrics::OmniboxInputType::UNKNOWN },
 689     { "gooey/", 1410, metrics::OmniboxInputType::URL },
 690     { "gooey#", 1200, metrics::OmniboxInputType::UNKNOWN },
 691     { "gooey/#", 1200, metrics::OmniboxInputType::URL },
 692     { "gooey#foo", 1200, metrics::OmniboxInputType::UNKNOWN },
 693     { "gooey/#foo", 1200, metrics::OmniboxInputType::URL },
 694     { "gooey# foo", 1200, metrics::OmniboxInputType::UNKNOWN },
 695     { "gooey/# foo", 1200, metrics::OmniboxInputType::URL },
 696   };
 697   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_cases); ++i) {
 698     SCOPED_TRACE(test_cases[i].input);
 699     const UrlAndLegalDefault output[] = {
 700         {url_fixer::FixupURL(test_cases[i].input, std::string()).spec(), true}};
 701     metrics::OmniboxInputType::Type type;
 702     ASSERT_NO_FATAL_FAILURE(
 703         RunTest(ASCIIToUTF16(test_cases[i].input),
 704                 base::string16(), false, output, arraysize(output), &type));
 705     // Actual relevance should be at least what test_cases expects and
 706     // and no more than 10 more.
 707     EXPECT_LE(test_cases[i].relevance, matches_[0].relevance);
 708     EXPECT_LT(matches_[0].relevance, test_cases[i].relevance + 10);
 709     // Input type should be what we expect.  This is important because
 710     // this provider counts on SearchProvider to give queries a relevance
 711     // score >1200 for UNKNOWN inputs and <1200 for URL inputs.  (That's
 712     // already tested in search_provider_unittest.cc.)  For this test
 713     // here to test that the user sees the correct behavior, it needs
 714     // to check that the input type was identified correctly.
 715     EXPECT_EQ(test_cases[i].type, type);
 716   }
 717 }
 718
 719 // Makes sure autocompletion happens for intranet sites that have been
 720 // previoulsy visited.
 721 TEST_F(HistoryURLProviderTest, IntranetURLCompletion) {
 722   sort_matches_ = true;
 723
 724   const UrlAndLegalDefault expected1[] = {
 725     { "http://intra/three", true },
 726     { "http://intra/two", true }
 727   };
 728   ASSERT_NO_FATAL_FAILURE(RunTest(ASCIIToUTF16("intra/t"), base::string16(),
 729                                   false, expected1, arraysize(expected1)));
 730   EXPECT_LE(1410, matches_[0].relevance);
 731   EXPECT_LT(matches_[0].relevance, 1420);
 732   EXPECT_EQ(matches_[0].relevance - 1, matches_[1].relevance);
 733
 734   const UrlAndLegalDefault expected2[] = {
 735     { "http://moo/b", true },
 736     { "http://moo/bar", true }
 737   };
 738   ASSERT_NO_FATAL_FAILURE(RunTest(ASCIIToUTF16("moo/b"), base::string16(),
 739                                   false, expected2, arraysize(expected2)));
 740   // The url what you typed match should be around 1400, otherwise the
 741   // search what you typed match is going to be first.
 742   EXPECT_LE(1400, matches_[0].relevance);
 743   EXPECT_LT(matches_[0].relevance, 1410);
 744
 745   const UrlAndLegalDefault expected3[] = {
 746     { "http://intra/one", true },
 747     { "http://intra/three", true },
 748     { "http://intra/two", true }
 749   };
 750   RunTest(ASCIIToUTF16("intra"), base::string16(), false, expected3,
 751           arraysize(expected3));
 752
 753   const UrlAndLegalDefault expected4[] = {
 754     { "http://intra/one", true },
 755     { "http://intra/three", true },
 756     { "http://intra/two", true }
 757   };
 758   RunTest(ASCIIToUTF16("intra/"), base::string16(), false, expected4,
 759           arraysize(expected4));
 760
 761   const UrlAndLegalDefault expected5[] = {
 762     { "http://intra/one", true }
 763   };
 764   ASSERT_NO_FATAL_FAILURE(RunTest(ASCIIToUTF16("intra/o"), base::string16(),
 765                                   false, expected5, arraysize(expected5)));
 766   EXPECT_LE(1410, matches_[0].relevance);
 767   EXPECT_LT(matches_[0].relevance, 1420);
 768
 769   const UrlAndLegalDefault expected6[] = {
 770     { "http://intra/x", true }
 771   };
 772   ASSERT_NO_FATAL_FAILURE(RunTest(ASCIIToUTF16("intra/x"), base::string16(),
 773                                   false, expected6, arraysize(expected6)));
 774   EXPECT_LE(1400, matches_[0].relevance);
 775   EXPECT_LT(matches_[0].relevance, 1410);
 776
 777   const UrlAndLegalDefault expected7[] = {
 778     { "http://typedhost/untypedpath", true }
 779   };
 780   ASSERT_NO_FATAL_FAILURE(RunTest(ASCIIToUTF16("typedhost/untypedpath"),
 781       base::string16(), false, expected7, arraysize(expected7)));
 782   EXPECT_LE(1400, matches_[0].relevance);
 783   EXPECT_LT(matches_[0].relevance, 1410);
 784 }
 785
 786 TEST_F(HistoryURLProviderTest, CrashDueToFixup) {
 787   // This test passes if we don't crash.  The results don't matter.
 788   const char* const test_cases[] = {
 789     "//c",
 790     "\\@st",
 791     "view-source:x",
 792   };
 793   for (size_t i = 0; i < arraysize(test_cases); ++i) {
 794     AutocompleteInput input(ASCIIToUTF16(test_cases[i]), base::string16::npos,
 795                             base::string16(), GURL(),
 796                             metrics::OmniboxEventProto::INVALID_SPEC,
 797                             false, false, true, true,
 798                             ChromeAutocompleteSchemeClassifier(profile_.get()));
 799     autocomplete_->Start(input, false);
 800     if (!autocomplete_->done())
 801       base::MessageLoop::current()->Run();
 802   }
 803 }
 804
 805 TEST_F(HistoryURLProviderTest, CullSearchResults) {
 806   // Set up a default search engine.
 807   TemplateURLData data;
 808   data.SetKeyword(ASCIIToUTF16("TestEngine"));
 809   data.SetURL("http://testsearch.com/?q={searchTerms}");
 810   TemplateURLService* template_url_service =
 811       TemplateURLServiceFactory::GetForProfile(profile_.get());
 812   TemplateURL* template_url = new TemplateURL(data);
 813   template_url_service->Add(template_url);
 814   template_url_service->SetUserSelectedDefaultSearchProvider(template_url);
 815   template_url_service->Load();
 816
 817   // URLs we will be using, plus the visit counts they will initially get
 818   // (the redirect set below will also increment the visit counts). We want
 819   // the results to be in A,B,C order. Note also that our visit counts are
 820   // all high enough so that domain synthesizing won't get triggered.
 821   struct TestCase {
 822     const char* url;
 823     int count;
 824   } test_cases[] = {
 825     {"https://testsearch.com/", 30},
 826     {"https://testsearch.com/?q=foobar", 20},
 827     {"http://foobar.com/", 10}
 828   };
 829   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_cases); ++i) {
 830     history_service_->AddPageWithDetails(GURL(test_cases[i].url),
 831         base::UTF8ToUTF16("Title"), test_cases[i].count, test_cases[i].count,
 832         Time::Now(), false, history::SOURCE_BROWSED);
 833   }
 834
 835   // We should not see search URLs when typing a previously used query.
 836   const UrlAndLegalDefault expected_when_searching_query[] = {
 837     { test_cases[2].url, false }
 838   };
 839   RunTest(ASCIIToUTF16("foobar"), base::string16(), true,
 840       expected_when_searching_query, arraysize(expected_when_searching_query));
 841
 842   // We should not see search URLs when typing the search engine name.
 843   const UrlAndLegalDefault expected_when_searching_site[] = {
 844     { test_cases[0].url, false }
 845   };
 846   RunTest(ASCIIToUTF16("testsearch"), base::string16(), true,
 847       expected_when_searching_site, arraysize(expected_when_searching_site));
 848 }
 849
 850 TEST_F(HistoryURLProviderTest, SuggestExactInput) {
 851   const size_t npos = std::string::npos;
 852   struct TestCase {
 853     // Inputs:
 854     const char* input;
 855     bool trim_http;
 856     // Expected Outputs:
 857     const char* contents;
 858     // Offsets of the ACMatchClassifications, terminated by npos.
 859     size_t offsets[3];
 860     // The index of the ACMatchClassification that should have the MATCH bit
 861     // set, npos if no ACMatchClassification should have the MATCH bit set.
 862     size_t match_classification_index;
 863   } test_cases[] = {
 864     { "http://www.somesite.com", false,
 865       "http://www.somesite.com", {0, npos, npos}, 0 },
 866     { "www.somesite.com", true,
 867       "www.somesite.com", {0, npos, npos}, 0 },
 868     { "www.somesite.com", false,
 869       "http://www.somesite.com", {0, 7, npos}, 1 },
 870     { "somesite.com", true,
 871       "somesite.com", {0, npos, npos}, 0 },
 872     { "somesite.com", false,
 873       "http://somesite.com", {0, 7, npos}, 1 },
 874     { "w", true,
 875       "w", {0, npos, npos}, 0 },
 876     { "w", false,
 877       "http://w", {0, 7, npos}, 1 },
 878     { "w.com", true,
 879       "w.com", {0, npos, npos}, 0 },
 880     { "w.com", false,
 881       "http://w.com", {0, 7, npos}, 1 },
 882     { "www.w.com", true,
 883       "www.w.com", {0, npos, npos}, 0 },
 884     { "www.w.com", false,
 885       "http://www.w.com", {0, 7, npos}, 1 },
 886     { "view-source:w", true,
 887       "view-source:w", {0, npos, npos}, 0 },
 888     { "view-source:www.w.com/", true,
 889       "view-source:www.w.com", {0, npos, npos}, npos },
 890     { "view-source:www.w.com/", false,
 891       "view-source:http://www.w.com", {0, npos, npos}, npos },
 892     { "view-source:http://www.w.com/", false,
 893       "view-source:http://www.w.com", {0, npos, npos}, 0 },
 894     { "   view-source:", true,
 895       "view-source:", {0, npos, npos}, 0 },
 896     { "http:////////w.com", false,
 897       "http://w.com", {0, npos, npos}, npos },
 898     { "    http:////////www.w.com", false,
 899       "http://www.w.com", {0, npos, npos}, npos },
 900     { "http:a///www.w.com", false,
 901       "http://a///www.w.com", {0, npos, npos}, npos },
 902     { "mailto://a@b.com", true,
 903       "mailto://a@b.com", {0, npos, npos}, 0 },
 904     { "mailto://a@b.com", false,
 905       "mailto://a@b.com", {0, npos, npos}, 0 },
 906   };
 907   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_cases); ++i) {
 908     SCOPED_TRACE(testing::Message() << "Index " << i << " input: "
 909                                     << test_cases[i].input << ", trim_http: "
 910                                     << test_cases[i].trim_http);
 911
 912     AutocompleteInput input(ASCIIToUTF16(test_cases[i].input),
 913                             base::string16::npos, base::string16(),
 914                             GURL("about:blank"),
 915                             metrics::OmniboxEventProto::INVALID_SPEC, false,
 916                             false, true, true,
 917                             ChromeAutocompleteSchemeClassifier(profile_.get()));
 918     AutocompleteMatch match(autocomplete_->SuggestExactInput(
 919         input.text(), input.canonicalized_url(), test_cases[i].trim_http));
 920     EXPECT_EQ(ASCIIToUTF16(test_cases[i].contents), match.contents);
 921     for (size_t match_index = 0; match_index < match.contents_class.size();
 922          ++match_index) {
 923       EXPECT_EQ(test_cases[i].offsets[match_index],
 924                 match.contents_class[match_index].offset);
 925       EXPECT_EQ(ACMatchClassification::URL |
 926                 (match_index == test_cases[i].match_classification_index ?
 927                  ACMatchClassification::MATCH : 0),
 928                 match.contents_class[match_index].style);
 929     }
 930     EXPECT_EQ(npos, test_cases[i].offsets[match.contents_class.size()]);
 931   }
 932 }
 933
 934 TEST_F(HistoryURLProviderTest, HUPScoringExperiment) {
 935   HUPScoringParams max_2000_no_time_decay;
 936   max_2000_no_time_decay.typed_count_buckets.buckets().push_back(
 937       std::make_pair(0.0, 2000));
 938   HUPScoringParams max_1250_no_time_decay;
 939   max_1250_no_time_decay.typed_count_buckets.buckets().push_back(
 940       std::make_pair(0.0, 1250));
 941   HUPScoringParams max_1000_no_time_decay;
 942   max_1000_no_time_decay.typed_count_buckets.buckets().push_back(
 943       std::make_pair(0.0, 1000));
 944
 945   HUPScoringParams max_1100_with_time_decay_and_max_cap;
 946   max_1100_with_time_decay_and_max_cap.typed_count_buckets.
 947       set_relevance_cap(1400);
 948   max_1100_with_time_decay_and_max_cap.typed_count_buckets.
 949       set_half_life_days(16);
 950   max_1100_with_time_decay_and_max_cap.typed_count_buckets.buckets().push_back(
 951       std::make_pair(0.5, 1100));
 952   max_1100_with_time_decay_and_max_cap.typed_count_buckets.buckets().push_back(
 953       std::make_pair(0.24, 200));
 954   max_1100_with_time_decay_and_max_cap.typed_count_buckets.buckets().push_back(
 955       std::make_pair(0.0, 100));
 956
 957   HUPScoringParams max_1100_visit_typed_decays;
 958   max_1100_visit_typed_decays.typed_count_buckets.set_half_life_days(16);
 959   max_1100_visit_typed_decays.typed_count_buckets.buckets().push_back(
 960       std::make_pair(0.5, 1100));
 961   max_1100_visit_typed_decays.typed_count_buckets.buckets().push_back(
 962       std::make_pair(0.0, 100));
 963   max_1100_visit_typed_decays.visited_count_buckets.set_half_life_days(16);
 964   max_1100_visit_typed_decays.visited_count_buckets.buckets().push_back(
 965       std::make_pair(0.5, 550));
 966   max_1100_visit_typed_decays.visited_count_buckets.buckets().push_back(
 967       std::make_pair(0.0, 50));
 968
 969   const int kMaxMatches = 3;
 970   struct TestCase {
 971     const char* input;
 972     HUPScoringParams scoring_params;
 973     struct ExpectedMatch {
 974       const char* url;
 975       int control_relevance;
 976       int experiment_relevance;
 977     };
 978     ExpectedMatch matches[kMaxMatches];
 979   } test_cases[] = {
 980     // Max score 2000 -> no demotion.
 981     { "7.com/1", max_2000_no_time_decay,
 982       {{"7.com/1a", 1413, 1413}, {NULL, 0, 0}, {NULL, 0, 0}} },
 983
 984     // Limit score to 1250/1000 and make sure that the top match is unchanged.
 985     { "7.com/1", max_1250_no_time_decay,
 986       {{"7.com/1a", 1413, 1413}, {NULL, 0, 0}, {NULL, 0, 0}} },
 987     { "7.com/2", max_1250_no_time_decay,
 988       {{"7.com/2a", 1413, 1413}, {"7.com/2b", 1412, 1250}, {NULL, 0, 0}} },
 989     { "7.com/4", max_1000_no_time_decay,
 990       {{"7.com/4", 1203, 1203}, {"7.com/4a", 1202, 1000},
 991        {"7.com/4b", 1201, 999}} },
 992
 993     // Max relevance cap is 1400 and half-life is 16 days.
 994     { "7.com/1", max_1100_with_time_decay_and_max_cap,
 995       {{"7.com/1a", 1413, 1413}, {NULL, 0, 0}, {NULL, 0, 0}} },
 996     { "7.com/4", max_1100_with_time_decay_and_max_cap,
 997       {{"7.com/4", 1203, 1203}, {"7.com/4a", 1202, 200},
 998        {"7.com/4b", 1201, 100}} },
 999
1000     // Max relevance cap is 1400 and half-life is 16 days for both visit/typed.
1001     { "7.com/5", max_1100_visit_typed_decays,
1002       {{"7.com/5", 1203, 1203}, {"7.com/5a", 1202, 50}, {NULL, 0, 0}} },
1003   };
1004   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_cases); ++i) {
1005     SCOPED_TRACE(test_cases[i].input);
1006     UrlAndLegalDefault output[kMaxMatches];
1007     int max_matches;
1008     for (max_matches = 0; max_matches < kMaxMatches; ++max_matches) {
1009       if (test_cases[i].matches[max_matches].url == NULL)
1010         break;
1011       output[max_matches].url =
1012           url_fixer::FixupURL(test_cases[i].matches[max_matches].url,
1013                               std::string()).spec();
1014       output[max_matches].allowed_to_be_default_match = true;
1015     }
1016     autocomplete_->scoring_params_ = test_cases[i].scoring_params;
1017
1018     // Test the control (scoring disabled).
1019     autocomplete_->scoring_params_.experimental_scoring_enabled = false;
1020     ASSERT_NO_FATAL_FAILURE(
1021         RunTest(ASCIIToUTF16(test_cases[i].input),
1022                 base::string16(), false, output, max_matches));
1023     for (int j = 0; j < max_matches; ++j) {
1024       EXPECT_EQ(test_cases[i].matches[j].control_relevance,
1025                 matches_[j].relevance);
1026     }
1027
1028     // Test the experiment (scoring enabled).
1029     autocomplete_->scoring_params_.experimental_scoring_enabled = true;
1030     ASSERT_NO_FATAL_FAILURE(
1031         RunTest(ASCIIToUTF16(test_cases[i].input),
1032                 base::string16(), false, output, max_matches));
1033     for (int j = 0; j < max_matches; ++j) {
1034       EXPECT_EQ(test_cases[i].matches[j].experiment_relevance,
1035                 matches_[j].relevance);
1036     }
1037   }
1038 }