[Smart Lock, Prefs reconciliation] Prefs migration logic for desktop platforms.

chrome/browser/sync/test/integration/multiple_client_password_manager_setting_migrator_service_sync_test.cc

Index: chrome/browser/sync/test/integration/multiple_client_password_manager_setting_migrator_service_sync_test.cc
diff --git a/chrome/browser/sync/test/integration/multiple_client_password_manager_setting_migrator_service_sync_test.cc b/chrome/browser/sync/test/integration/multiple_client_password_manager_setting_migrator_service_sync_test.cc
new file mode 100644
index 0000000000000000000000000000000000000000..841cddb5848710027a57e1a7cda1c2e9c5df95da
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+++ b/chrome/browser/sync/test/integration/multiple_client_password_manager_setting_migrator_service_sync_test.cc
@@ -0,0 +1,79 @@
+// Copyright (c) 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/sync/test/integration/password_manager_setting_migrator_helper.h"
+#include "chrome/browser/sync/test/integration/preferences_helper.h"
+#include "chrome/browser/sync/test/integration/profile_sync_service_harness.h"
+#include "chrome/browser/sync/test/integration/sync_integration_test_util.h"
+#include "chrome/browser/sync/test/integration/sync_test.h"
+#include "components/password_manager/core/common/password_manager_pref_names.h"
+#include "components/syncable_prefs/pref_service_syncable.h"
+#include "content/public/test/test_browser_thread_bundle.h"
+
+using password_manager_setting_migrater_helper::ExpectPrefValuesOnClient;
+using preferences_helper::AwaitBooleanPrefMatches;
+using preferences_helper::ChangeBooleanPref;
+
+class MultipleClientPasswordManagerSettingMigratorServiceSyncTest
+    : public SyncTest {
+ public:
+  MultipleClientPasswordManagerSettingMigratorServiceSyncTest()
+      : SyncTest(MULTIPLE_CLIENT) {}
+  ~MultipleClientPasswordManagerSettingMigratorServiceSyncTest() override {}
+
+  bool SetupClients() override {
+    password_manager_setting_migrater_helper::SetupFieldTrial();
+    if (!SyncTest::SetupClients())
+      return false;
+    DisableVerifier();
+    return true;
+  }
+
+  void EnsureMigrationStartsForClient(int index) {
+    password_manager_setting_migrater_helper::SendProfileAddNotification(
+        GetProfile(index));
+  }
+
+  bool TestUsesSelfNotifications() override { return false; }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(
+      MultipleClientPasswordManagerSettingMigratorServiceSyncTest);
+};
+
+IN_PROC_BROWSER_TEST_F(
+    MultipleClientPasswordManagerSettingMigratorServiceSyncTest,
+    TwoClientsWithMigrationOneClientWithoutChangeFromOnToOff) {
+  DisableVerifier();
+  ASSERT_TRUE(SetupSync()) << "SetupSync() failed.";
+  EnsureMigrationStartsForClient(0);
+  EnsureMigrationStartsForClient(1);
+  // Client without migration changes the legacy pref.
+  ChangeBooleanPref(2, password_manager::prefs::kPasswordManagerSavingEnabled);
+  ASSERT_TRUE(AwaitBooleanPrefMatches(
+      password_manager::prefs::kPasswordManagerSavingEnabled));
+  // Check that new and legacy preferences have correct value on client with
+  // migration.
+  for (int i = 0; i < num_clients() - 1; ++i) {
+    ExpectPrefValuesOnClient(i, false, false);
+  }
+}
+
+IN_PROC_BROWSER_TEST_F(
+    MultipleClientPasswordManagerSettingMigratorServiceSyncTest,
+    TwoClientsWithMigrationOneClientWithoutChangeFromOffToOn) {
+  DisableVerifier();
+  ASSERT_TRUE(SetupSync()) << "SetupSync() failed.";
+  EnsureMigrationStartsForClient(0);
+  EnsureMigrationStartsForClient(1);
+  ChangeBooleanPref(2, password_manager::prefs::kPasswordManagerSavingEnabled);
+  ASSERT_TRUE(AwaitBooleanPrefMatches(
+      password_manager::prefs::kPasswordManagerSavingEnabled));
+  ChangeBooleanPref(2, password_manager::prefs::kPasswordManagerSavingEnabled);
+  ASSERT_TRUE(AwaitBooleanPrefMatches(
+      password_manager::prefs::kPasswordManagerSavingEnabled));
+  for (int i = 0; i < num_clients() - 1; ++i) {
+    ExpectPrefValuesOnClient(i, true, true);
+  }
+}