Add more unit tests and logs

logger/buffered_logger.go

@@ -125,6 +125,7 @@ func (bl *bufferedLogger) Start(
 		pipe := p
 
 		errGroup.Go(func() error {
+			debug.SendEventsToLog(DaemonName, fmt.Sprintf("Reading logs from pipe %s", source), debug.DEBUG, 0)
 			logErr := bl.saveLogMessagesToRingBuffer(ctx, pipe, source)
 			if logErr != nil {
 				err := fmt.Errorf("failed to send logs from pipe %s: %w", source, logErr)

logger/common_test.go

@@ -212,7 +212,6 @@ func TestNewInfo(t *testing.T) {
 // TestTracingLogRouting verifies the expected number of bytes are read from the source/containers' pipe files and the
 // expected number of bytes are sent to the destination/the log driver.
 func TestTracingLogRouting(t *testing.T) {
-
 	// Create a tmp file that used to mock the io pipe where the logger reads log
 	// messages from.
 	tmpIOSource, err := os.CreateTemp("", "")