Use Sync FakeServer in exponential backoff tests

chrome/browser/sync/test/integration/sync_exponential_backoff_test.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 "base/bind.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/browser/sync/test/integration/bookmarks_helper.h"
 #include "chrome/browser/sync/test/integration/retry_verifier.h"
 #include "chrome/browser/sync/test/integration/single_client_status_change_checker.h"
 #include "chrome/browser/sync/test/integration/sync_integration_test_util.h"
 #include "chrome/browser/sync/test/integration/sync_test.h"
 
 namespace {
 
 using bookmarks_helper::AddFolder;
 using bookmarks_helper::ModelMatchesVerifier;
 using syncer::sessions::SyncSessionSnapshot;
 using sync_integration_test_util::AwaitCommitActivityCompletion;
 
 class SyncExponentialBackoffTest : public SyncTest {
  public:
-  // TODO(pvalenzuela): Switch to SINGLE_CLIENT once FakeServer
-  // supports this scenario.
-  SyncExponentialBackoffTest() : SyncTest(SINGLE_CLIENT_LEGACY) {}
+  SyncExponentialBackoffTest() : SyncTest(SINGLE_CLIENT) {}
   virtual ~SyncExponentialBackoffTest() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SyncExponentialBackoffTest);
 };
 
 // Helper class that checks if a sync client has successfully gone through
 // exponential backoff after it encounters an error.
 class ExponentialBackoffChecker : public SingleClientStatusChangeChecker {
  public:
@@ skipping 27 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(ExponentialBackoffChecker);
 };
 
 IN_PROC_BROWSER_TEST_F(SyncExponentialBackoffTest, OfflineToOnline) {
   ASSERT_TRUE(SetupSync()) << "SetupSync() failed.";
 
   // Add an item and ensure that sync is successful.
   ASSERT_TRUE(AddFolder(0, 0, "folder1"));
   ASSERT_TRUE(AwaitCommitActivityCompletion(GetSyncService((0))));
 
-  // Trigger a network error at the client side.
-  DisableNetwork(GetProfile(0));
+  GetFakeServer()->DisableNetwork();
 
   // Add a new item to trigger another sync cycle.
   ASSERT_TRUE(AddFolder(0, 0, "folder2"));
 
   // Verify that the client goes into exponential backoff while it is unable to
   // reach the sync server.
   ExponentialBackoffChecker exponential_backoff_checker(
       GetSyncService((0)));
   exponential_backoff_checker.Wait();
   ASSERT_FALSE(exponential_backoff_checker.TimedOut());
 
-  // Recover from the network error.
-  EnableNetwork(GetProfile(0));
+  GetFakeServer()->EnableNetwork();
 
   // Verify that sync was able to recover.
   ASSERT_TRUE(AwaitCommitActivityCompletion(GetSyncService((0))));
   ASSERT_TRUE(ModelMatchesVerifier(0));
 }
 
 IN_PROC_BROWSER_TEST_F(SyncExponentialBackoffTest, TransientErrorTest) {
   ASSERT_TRUE(SetupSync()) << "SetupSync() failed.";
 
   // Add an item and ensure that sync is successful.
   ASSERT_TRUE(AddFolder(0, 0, "folder1"));
   ASSERT_TRUE(AwaitCommitActivityCompletion(GetSyncService((0))));
 
-  // Trigger a transient error on the server.
-  TriggerTransientError();
+  GetFakeServer()->TriggerError(sync_pb::SyncEnums::TRANSIENT_ERROR);
 
   // Add a new item to trigger another sync cycle.
   ASSERT_TRUE(AddFolder(0, 0, "folder2"));
 
   // Verify that the client goes into exponential backoff while it is unable to
   // reach the sync server.
   ExponentialBackoffChecker exponential_backoff_checker(
       GetSyncService((0)));
   exponential_backoff_checker.Wait();
   ASSERT_FALSE(exponential_backoff_checker.TimedOut());
 }
 
 }  // namespace