status-go/protocol/messenger_mailserver_proces...

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package protocol
import (
"context"
"crypto/rand"
"encoding/hex"
"errors"
"math/big"
"testing"
"github.com/google/uuid"
"github.com/stretchr/testify/require"
"github.com/status-im/status-go/eth-node/types"
"github.com/status-im/status-go/protocol/tt"
)
type queryResponse struct {
topics []types.TopicType
err error // Indicates if this response will simulate an error returned by SendMessagesRequestForTopics
cursor []byte
}
type mockTransport struct {
queryResponses map[string]queryResponse
}
func newMockTransport() *mockTransport {
return &mockTransport{
queryResponses: make(map[string]queryResponse),
}
}
func getInitialResponseKey(topics []types.TopicType) string {
return hex.EncodeToString(append([]byte("start"), topics[0][:]...))
}
func (t *mockTransport) SendMessagesRequestForTopics(
ctx context.Context,
peerID []byte,
from, to uint32,
previousCursor []byte,
previousStoreCursor *types.StoreRequestCursor,
pubsubTopic string,
contentTopics []types.TopicType,
limit uint32,
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waitForResponse bool,
processEnvelopes bool,
) (cursor []byte, storeCursor *types.StoreRequestCursor, envelopesCount int, err error) {
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var response queryResponse
if previousCursor == nil {
initialResponse := getInitialResponseKey(contentTopics)
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response = t.queryResponses[initialResponse]
} else {
response = t.queryResponses[hex.EncodeToString(previousCursor)]
}
return response.cursor, nil, 0, response.err
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}
func (t *mockTransport) Populate(topics []types.TopicType, responses int, includeRandomError bool) error {
if responses <= 0 || len(topics) == 0 {
return errors.New("invalid input parameters")
}
var topicBatches [][]types.TopicType
for i := 0; i < len(topics); i += maxTopicsPerRequest {
// Split batch in 10-contentTopic subbatches
j := i + maxTopicsPerRequest
if j > len(topics) {
j = len(topics)
}
topicBatches = append(topicBatches, topics[i:j])
}
randomErrIdx, err := rand.Int(rand.Reader, big.NewInt(int64(len(topicBatches))))
if err != nil {
return err
}
randomErrIdxInt := int(randomErrIdx.Int64())
for i, topicBatch := range topicBatches {
// Setup initial response
initialResponseKey := getInitialResponseKey(topicBatch)
t.queryResponses[initialResponseKey] = queryResponse{
topics: topicBatch,
err: nil,
}
prevKey := initialResponseKey
for x := 0; x < responses-1; x++ {
newResponseCursor := []byte(uuid.New().String())
newResponseKey := hex.EncodeToString(newResponseCursor)
var err error
if includeRandomError && i == randomErrIdxInt && x == responses-2 { // Include an error in last request
err = errors.New("random error")
}
t.queryResponses[newResponseKey] = queryResponse{
topics: topicBatch,
err: err,
}
// Updating prev response cursor to point to the new response
prevResponse := t.queryResponses[prevKey]
prevResponse.cursor = newResponseCursor
t.queryResponses[prevKey] = prevResponse
prevKey = newResponseKey
}
}
return nil
}
func TestProcessMailserverBatchHappyPath(t *testing.T) {
logger := tt.MustCreateTestLogger()
mailserverID := []byte{1, 2, 3, 4, 5}
topics := []types.TopicType{}
for i := 0; i < 22; i++ {
topics = append(topics, types.BytesToTopic([]byte{0, 0, 0, byte(i)}))
}
testTransport := newMockTransport()
err := testTransport.Populate(topics, 10, false)
require.NoError(t, err)
testBatch := MailserverBatch{
Topics: topics,
}
err = processMailserverBatch(context.TODO(), testTransport, testBatch, mailserverID, logger, defaultStoreNodeRequestPageSize, nil, false)
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require.NoError(t, err)
}
func TestProcessMailserverBatchFailure(t *testing.T) {
logger := tt.MustCreateTestLogger()
mailserverID := []byte{1, 2, 3, 4, 5}
topics := []types.TopicType{}
for i := 0; i < 5; i++ {
topics = append(topics, types.BytesToTopic([]byte{0, 0, 0, byte(i)}))
}
testTransport := newMockTransport()
err := testTransport.Populate(topics, 4, true)
require.NoError(t, err)
testBatch := MailserverBatch{
Topics: topics,
}
err = processMailserverBatch(context.TODO(), testTransport, testBatch, mailserverID, logger, defaultStoreNodeRequestPageSize, nil, false)
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require.Error(t, err)
}