Early exit from autofill profile de-duplication if <2 profiles.

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>
@@ skipping 5266 matching lines @@
   // Make sure both profiles were saved.
   EXPECT_EQ(2U, personal_data_->GetProfiles().size());
 
   // The deduping routine should not be run.
   EXPECT_FALSE(personal_data_->ApplyDedupingRoutine());
 
   // Both profiles should still be present.
   EXPECT_EQ(2U, personal_data_->GetProfiles().size());
 }
 
+TEST_F(PersonalDataManagerTest, ApplyDedupingRoutine_NopIfZeroProfiles) {
+  EXPECT_TRUE(personal_data_->GetProfiles().empty());
+  EnableAutofillProfileCleanup();
+  EXPECT_FALSE(personal_data_->ApplyDedupingRoutine());
+}
+
+TEST_F(PersonalDataManagerTest, ApplyDedupingRoutine_NopIfOneProfile) {
+  // Create a profile to dedupe.
+  AutofillProfile profile(base::GenerateGUID(), "https://www.example.com");
+  test::SetProfileInfo(&profile, "Homer", "J", "Simpson",
+                       "homer.simpson@abc.com", "", "742. Evergreen Terrace",
+                       "", "Springfield", "IL", "91601", "US", "");
+
+  personal_data_->AddProfile(profile);
+  EXPECT_CALL(personal_data_observer_, OnPersonalDataChanged())
+      .WillOnce(QuitMainMessageLoop());
+  base::RunLoop().Run();
+
+  EXPECT_EQ(1U, personal_data_->GetProfiles().size());
+
+  // Enable the profile cleanup now. Otherwise it would be triggered by the
+  // calls to AddProfile.
+  EnableAutofillProfileCleanup();
+  EXPECT_FALSE(personal_data_->ApplyDedupingRoutine());
+}
+
+
 // Tests that ApplyDedupingRoutine is not run a second time on the same major
 // version.
 TEST_F(PersonalDataManagerTest, ApplyDedupingRoutine_OncePerVersion) {
   // Create a profile to dedupe.
   AutofillProfile profile1(base::GenerateGUID(), "https://www.example.com");
   test::SetProfileInfo(&profile1, "Homer", "J", "Simpson",
                        "homer.simpson@abc.com", "", "742. Evergreen Terrace",
                        "", "Springfield", "IL", "91601", "US", "");
 
   // Create a similar profile.
@@ skipping 46 matching lines @@
   EnableAutofillProfileCleanup();
 
   // The deduping routine should not be run.
   EXPECT_FALSE(personal_data_->ApplyDedupingRoutine());
 
   // The two duplicate profiles should still be present.
   EXPECT_EQ(2U, personal_data_->GetProfiles().size());
 }
 
 }  // namespace autofill