package log_buffer import ( "crypto/rand" "fmt" "io" "sync" "testing" "time" "github.com/seaweedfs/seaweedfs/weed/pb/filer_pb" ) func TestNewLogBufferFirstBuffer(t *testing.T) { flushInterval := time.Second lb := NewLogBuffer("test", flushInterval, func(startTime, stopTime time.Time, buf []byte) { fmt.Printf("flush from %v to %v %d bytes\n", startTime, stopTime, len(buf)) }, nil, func() { }) startTime := time.Now() messageSize := 1024 messageCount := 5000 receivedMessageCount := 0 var wg sync.WaitGroup wg.Add(1) go func() { defer wg.Done() lastProcessedTime, isDone, err := lb.LoopProcessLogData("test", startTime, 0, func() bool { // stop if no more messages return receivedMessageCount < messageCount }, func(logEntry *filer_pb.LogEntry) error { receivedMessageCount++ if receivedMessageCount >= messageCount { println("processed all messages") return io.EOF } return nil }) fmt.Printf("before flush: sent %d received %d\n", messageCount, receivedMessageCount) fmt.Printf("lastProcessedTime %v isDone %v err: %v\n", lastProcessedTime, isDone, err) if err != nil && err != io.EOF { t.Errorf("unexpected error %v", err) } }() var buf = make([]byte, messageSize) for i := 0; i < messageCount; i++ { rand.Read(buf) lb.AddToBuffer(nil, buf, 0) } wg.Wait() if receivedMessageCount != messageCount { t.Errorf("expect %d messages, but got %d", messageCount, receivedMessageCount) } }