Add integraton test for sync backup/rollback.

BUG=362679

Review URL: https://codereview.chromium.org/310103004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@276281 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 18 insertions, 1 deletions

diff --git a/sync/test/fake_server/fake_server.cc b/sync/test/fake_server/fake_server.cc
index d881080..56780e5 100644
--- a/sync/test/fake_server/fake_server.cc
+++ b/sync/test/fake_server/fake_server.cc
@@ -148,7 +148,8 @@ scoped_ptr<UpdateSieve> UpdateSieve::Create(
 
 FakeServer::FakeServer() : version_(0),
                            store_birthday_(kDefaultStoreBirthday),
-                           authenticated_(true) {
+                           authenticated_(true),
+                           error_type_(sync_pb::SyncEnums::SUCCESS) {
   keystore_keys_.push_back(kDefaultKeystoreKey);
   CHECK(CreateDefaultPermanentItems());
 }
@@ -232,6 +233,8 @@ void FakeServer::HandleCommand(const string& request,
   if (message.has_store_birthday() &&
       message.store_birthday() != store_birthday_) {
     error_code = sync_pb::SyncEnums::NOT_MY_BIRTHDAY;
+  } else if (error_type_ != sync_pb::SyncEnums::SUCCESS) {
+    error_code = error_type_;
   } else {
     bool success = false;
     switch (message.message_contents()) {
@@ -506,6 +509,15 @@ void FakeServer::SetUnauthenticated() {
   authenticated_ = false;
 }
 
+// TODO(pvalenzuela): comments from Richard: we should look at
+// mock_connection_manager.cc and take it as a warning. This style of injecting
+// errors works when there's one or two conditions we care about, but it can
+// eventually lead to a hairball once we have many different conditions and
+// triggering logic.
+void FakeServer::TriggerError(const sync_pb::SyncEnums::ErrorType& error_type) {
+  error_type_ = error_type;
+}
+
 void FakeServer::AddObserver(Observer* observer) {
   observers_.AddObserver(observer);
 }
diff --git a/sync/test/fake_server/fake_server.h b/sync/test/fake_server/fake_server.h
index 71fdc9c..fa1b4d5 100644
--- a/sync/test/fake_server/fake_server.h
+++ b/sync/test/fake_server/fake_server.h
@@ -70,6 +70,9 @@ class FakeServer {
   // authentication error.
   void SetUnauthenticated();
 
+  // Return |error_type| on next sync request.
+  void TriggerError(const sync_pb::SyncEnums::ErrorType& error_type);
+
   // Adds |observer| to FakeServer's observer list. This should be called
   // before the Profile associated with |observer| is connected to the server.
   void AddObserver(Observer* observer);
@@ -142,6 +145,8 @@ class FakeServer {
   // All Keystore keys known to the server.
   std::vector<std::string> keystore_keys_;
 
+  sync_pb::SyncEnums::ErrorType error_type_;
+
   // FakeServer's observers.
   ObserverList<Observer, true> observers_;
 };