fix flaky test TestBackupSettings (#4772)

protocol/messenger_backup_test.go

@@ -8,6 +8,7 @@ import (
 	"testing"
 
 	"github.com/status-im/status-go/protocol/identity"
+	"github.com/status-im/status-go/protocol/wakusync"
 
 	"github.com/stretchr/testify/suite"
 
@@ -388,13 +389,13 @@ func (s *MessengerBackupSuite) TestBackupSettings() {
 	s.Require().NoError(err)
 
 	// Wait for the message to reach its destination
-	_, err = WaitOnMessengerResponse(
-		bob2,
-		func(r *MessengerResponse) bool {
-			return r.BackupHandled
-		},
-		"no messages",
-	)
+	_, err = WaitOnSignaledSendWakuFetchingBackupProgress(bob2, func(r *wakusync.WakuBackedUpDataResponse) bool {
+		detailsMap := r.FetchingBackedUpDataDetails()
+		if settingDetails, ok := detailsMap[SyncWakuSectionKeySettings]; ok {
+			return settingDetails.DataNumber == settingDetails.TotalNumber
+		}
+		return false
+	}, "no messages")
 	s.Require().NoError(err)
 
 	// Check bob2

protocol/messenger_testing_utils.go

@@ -9,6 +9,8 @@ import (
 	"sync"
 	"time"
 
+	"github.com/status-im/status-go/protocol/wakusync"
+
 	"github.com/status-im/status-go/protocol/identity"
 
 	"github.com/status-im/status-go/eth-node/types"
@@ -54,6 +56,16 @@ type MessengerSignalsHandlerMock struct {
 
 	responseChan                 chan *MessengerResponse
 	communityFoundChan           chan *communities.Community
+	wakuBackedUpDataResponseChan chan *wakusync.WakuBackedUpDataResponse
+}
+
+func (m *MessengerSignalsHandlerMock) SendWakuFetchingBackupProgress(response *wakusync.WakuBackedUpDataResponse) {
+	m.wakuBackedUpDataResponseChan <- response
+}
+func (m *MessengerSignalsHandlerMock) SendWakuBackedUpProfile(*wakusync.WakuBackedUpDataResponse)  {}
+func (m *MessengerSignalsHandlerMock) SendWakuBackedUpSettings(*wakusync.WakuBackedUpDataResponse) {}
+func (m *MessengerSignalsHandlerMock) SendWakuBackedUpKeypair(*wakusync.WakuBackedUpDataResponse)  {}
+func (m *MessengerSignalsHandlerMock) SendWakuBackedUpWatchOnlyAccount(*wakusync.WakuBackedUpDataResponse) {
 }
 
 func (m *MessengerSignalsHandlerMock) MessengerResponse(response *MessengerResponse) {
@@ -73,6 +85,42 @@ func (m *MessengerSignalsHandlerMock) CommunityInfoFound(community *communities.
 	}
 }
 
+func WaitOnSignaledSendWakuFetchingBackupProgress(m *Messenger, condition func(*wakusync.WakuBackedUpDataResponse) bool, errorMessage string) (*wakusync.WakuBackedUpDataResponse, error) {
+	interval := 500 * time.Millisecond
+	timeoutChan := time.After(10 * time.Second)
+
+	if m.config.messengerSignalsHandler != nil {
+		return nil, errors.New("messengerSignalsHandler already provided/mocked")
+	}
+
+	responseChan := make(chan *wakusync.WakuBackedUpDataResponse, 1000)
+	m.config.messengerSignalsHandler = &MessengerSignalsHandlerMock{
+		wakuBackedUpDataResponseChan: responseChan,
+	}
+
+	defer func() {
+		m.config.messengerSignalsHandler = nil
+	}()
+
+	for {
+		_, err := m.RetrieveAll()
+		if err != nil {
+			return nil, err
+		}
+
+		select {
+		case r := <-responseChan:
+			if condition(r) {
+				return r, nil
+			}
+		case <-timeoutChan:
+			return nil, errors.New("timed out: " + errorMessage)
+		default: // No immediate response, rest & loop back to retrieve again
+			time.Sleep(interval)
+		}
+	}
+}
+
 func WaitOnSignaledMessengerResponse(m *Messenger, condition func(*MessengerResponse) bool, errorMessage string) (*MessengerResponse, error) {
 	interval := 500 * time.Millisecond
 	timeoutChan := time.After(10 * time.Second)