[Autofill] Credit Card Autofill Last Used Date Experiment

components/autofill/core/browser/personal_data_manager_unittest.cc

 // Copyright 2013 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 "components/autofill/core/browser/personal_data_manager.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <list>
 #include <map>
 #include <memory>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/guid.h"
+#include "base/i18n/time_formatting.h"
 #include "base/memory/ptr_util.h"
-#include "base/metrics/field_trial.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/test/histogram_tester.h"
 #include "base/test/simple_test_clock.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/time/time.h"
 #include "build/build_config.h"
 #include "components/autofill/core/browser/autofill_experiments.h"
 #include "components/autofill/core/browser/autofill_metrics.h"
 #include "components/autofill/core/browser/autofill_profile.h"
 #include "components/autofill/core/browser/autofill_test_utils.h"
 #include "components/autofill/core/browser/field_types.h"
 #include "components/autofill/core/browser/form_structure.h"
 #include "components/autofill/core/browser/personal_data_manager_observer.h"
 #include "components/autofill/core/browser/test_autofill_clock.h"
 #include "components/autofill/core/browser/webdata/autofill_table.h"
 #include "components/autofill/core/browser/webdata/autofill_webdata_service.h"
 #include "components/autofill/core/common/autofill_clock.h"
 #include "components/autofill/core/common/autofill_constants.h"
 #include "components/autofill/core/common/autofill_pref_names.h"
 #include "components/autofill/core/common/autofill_switches.h"
 #include "components/autofill/core/common/form_data.h"
 #include "components/os_crypt/os_crypt_mocker.h"
 #include "components/prefs/pref_service.h"
 #include "components/signin/core/browser/account_tracker_service.h"
 #include "components/signin/core/browser/fake_signin_manager.h"
 #include "components/signin/core/browser/test_signin_client.h"
 #include "components/signin/core/common/signin_pref_names.h"
-#include "components/variations/entropy_provider.h"
-#include "components/variations/variations_associated_data.h"
+#include "components/variations/variations_params_manager.h"
 #include "components/webdata/common/web_data_service_base.h"
 #include "components/webdata/common/web_database_service.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using base::ASCIIToUTF16;
 using base::UTF8ToUTF16;
 
 namespace autofill {
 namespace {
@@ skipping 84 matching lines @@
     web_database_->LoadDatabase();
     autofill_database_service_ = new AutofillWebDataService(
         web_database_, base::ThreadTaskRunnerHandle::Get(),
         base::ThreadTaskRunnerHandle::Get(),
         WebDataServiceBase::ProfileErrorCallback());
     autofill_database_service_->Init();
 
     test::DisableSystemServices(prefs_.get());
     ResetPersonalDataManager(USER_MODE_NORMAL);
 
-    // There are no field trials enabled by default.
-    field_trial_list_.reset();
-
     // Reset the deduping pref to its default value.
     personal_data_->pref_service_->SetInteger(
         prefs::kAutofillLastVersionDeduped, 0);
     personal_data_->pref_service_->SetBoolean(
         prefs::kAutofillProfileUseDatesFixed, false);
   }
 
   void TearDown() override {
     // Order of destruction is important as AutofillManager relies on
     // PersonalDataManager to be around when it gets destroyed.
@@ skipping 136 matching lines @@
   bool ImportAddressProfiles(const FormStructure& form) {
     return personal_data_->ImportAddressProfiles(form);
   }
   bool ImportCreditCard(const FormStructure& form,
                         bool should_return_local_card,
                         std::unique_ptr<CreditCard>* imported_credit_card) {
     return personal_data_->ImportCreditCard(form, should_return_local_card,
                                             imported_credit_card);
   }
 
-  // Sets up the profile order field trial group and parameter. Sets up the
-  // suggestions limit parameter to |limit_param|.
-  void EnableAutofillProfileLimitFieldTrial(const std::string& limit_param) {
-    DCHECK(!limit_param.empty());
-
-    // Clear the existing |field_trial_list_| and variation parameters.
-    field_trial_list_.reset(NULL);
-    field_trial_list_.reset(
-        new base::FieldTrialList(
-            base::MakeUnique<metrics::SHA1EntropyProvider>("foo")));
-    variations::testing::ClearAllVariationParams();
-
-    std::map<std::string, std::string> params;
-    params[kFrecencyFieldTrialLimitParam] = limit_param;
-    variations::AssociateVariationParams(kFrecencyFieldTrialName, "LimitToN",
-                                         params);
-
-    field_trial_ = base::FieldTrialList::CreateFieldTrial(
-        kFrecencyFieldTrialName, "LimitToN");
-    field_trial_->group();
-  }
-
   void SubmitFormAndExpectImportedCardWithData(const FormData& form,
                                                const char* exp_name,
                                                const char* exp_cc_num,
                                                const char* exp_cc_month,
                                                const char* exp_cc_year) {
     FormStructure form_structure(form);
     form_structure.DetermineHeuristicTypes();
     std::unique_ptr<CreditCard> imported_credit_card;
     EXPECT_TRUE(ImportCreditCard(form_structure, false, &imported_credit_card));
     ASSERT_TRUE(imported_credit_card);
@@ skipping 19 matching lines @@
   std::unique_ptr<PrefService> prefs_;
   std::unique_ptr<AccountTrackerService> account_tracker_;
   std::unique_ptr<FakeSigninManagerBase> signin_manager_;
   std::unique_ptr<TestSigninClient> signin_client_;
   scoped_refptr<AutofillWebDataService> autofill_database_service_;
   scoped_refptr<WebDatabaseService> web_database_;
   AutofillTable* autofill_table_;  // weak ref
   PersonalDataLoadedObserverMock personal_data_observer_;
   std::unique_ptr<PersonalDataManager> personal_data_;
 
-  std::unique_ptr<base::FieldTrialList> field_trial_list_;
-  scoped_refptr<base::FieldTrial> field_trial_;
+  variations::testing::VariationParamsManager variation_params_;
 };
 
 TEST_F(PersonalDataManagerTest, AddProfile) {
   // Add profile0 to the database.
   AutofillProfile profile0(test::GetFullProfile());
   profile0.SetRawInfo(EMAIL_ADDRESS, ASCIIToUTF16("j@s.com"));
   personal_data_->AddProfile(profile0);
 
   // Reload the database.
   ResetPersonalDataManager(USER_MODE_NORMAL);
@@ skipping 3060 matching lines @@
 
   ResetPersonalDataManager(USER_MODE_NORMAL);
 
   // Verify that all the profiles are suggested.
   std::vector<Suggestion> suggestions = personal_data_->GetProfileSuggestions(
       AutofillType(NAME_FIRST), base::string16(), false,
       std::vector<ServerFieldType>());
   EXPECT_EQ(3U, suggestions.size());
 
   // Verify that only two profiles are suggested.
-  EnableAutofillProfileLimitFieldTrial("2");
+  variation_params_.SetVariationParams(kFrecencyFieldTrialName,
+                                       {{kFrecencyFieldTrialLimitParam, "2"}});
 
   suggestions = personal_data_->GetProfileSuggestions(
       AutofillType(NAME_FIRST), base::string16(), false,
       std::vector<ServerFieldType>());
   EXPECT_EQ(2U, suggestions.size());
 }
 
 // Tests that GetProfileSuggestions returns the right number of profile
 // suggestions when the limit to three field trial is set and there are less
 // than three profiles.
 TEST_F(PersonalDataManagerTest,
        GetProfileSuggestions_LimitIsMoreThanProfileSuggestions) {
-  EnableAutofillProfileLimitFieldTrial("3");
+  variation_params_.SetVariationParams(kFrecencyFieldTrialName,
+                                       {{kFrecencyFieldTrialLimitParam, "3"}});
 
   // Set up 2 different profiles.
   AutofillProfile profile1(base::GenerateGUID(), "https://www.example.com");
   test::SetProfileInfo(&profile1, "Marion1", "Mitchell", "Morrison",
                        "johnwayne@me.xyz", "Fox",
                        "123 Zoo St.\nSecond Line\nThird line", "unit 5",
                        "Hollywood", "CA", "91601", "US", "12345678910");
   personal_data_->AddProfile(profile1);
 
   AutofillProfile profile2(base::GenerateGUID(), "https://www.example.com");
@@ skipping 2542 matching lines @@
 
   // Make sure that the billing address id of the two cards now point to the
   // converted profile.
   EXPECT_EQ(profiles[0]->guid(),
             personal_data_->GetCreditCards()[0]->billing_address_id());
   EXPECT_EQ(profiles[0]->guid(),
             personal_data_->GetCreditCards()[1]->billing_address_id());
 }
 
 }  // namespace autofill