batches_test refactoring

Support log based test for batch validation rules
Add more test cases for span batch

op-node/rollup/derive/batches.go

@@ -199,11 +199,11 @@ func checkSpanBatch(ctx context.Context, cfg *rollup.Config, log log.Logger, l1B
 	if batch.GetTimestamp() < nextTimestamp {
 		if batch.GetTimestamp() > l2SafeHead.Time {
 			// batch timestamp cannot be between safe head and next timestamp
-			log.Warn("batch has misaligned timestamp")
+			log.Warn("batch has misaligned timestamp, block time is too short")
 			return BatchDrop
 		}
 		if (l2SafeHead.Time-batch.GetTimestamp())%cfg.BlockTime != 0 {
-			log.Warn("batch has misaligned timestamp")
+			log.Warn("batch has misaligned timestamp, not overlapped exactly")
 			return BatchDrop
 		}
 		parentNum = l2SafeHead.Number - (l2SafeHead.Time-batch.GetTimestamp())/cfg.BlockTime - 1