From 52d490fa7e6b108f71ffb8937554141d5c668ff1 Mon Sep 17 00:00:00 2001
From: Jimmy Hu <jimmy.hu@dexon.org>
Date: Mon, 15 Oct 2018 11:17:59 +0800
Subject: core: fix simulation error (#201)

* Sync dMoment for all consensus core
* App check for randomness ignore round 0
---
 simulation/app.go | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'simulation/app.go')

diff --git a/simulation/app.go b/simulation/app.go
index 0ca65c9..16bb63a 100644
--- a/simulation/app.go
+++ b/simulation/app.go
@@ -132,7 +132,14 @@ func (a *simApp) TotalOrderingDelivered(blockHashes common.Hashes, early bool) {
 // BlockDelivered is called when a block in compaction chain is delivered.
 func (a *simApp) BlockDelivered(
 	blockHash common.Hash, result types.FinalizationResult) {
-	if len(result.Randomness) == 0 {
+	if len(result.Randomness) == 0 && func() bool {
+		if block, exist := a.blockByHash[blockHash]; exist {
+			if block.Position.Round == 0 {
+				return false
+			}
+		}
+		return true
+	}() {
 		panic(fmt.Errorf("Block %s randomness is empty", blockHash))
 	}
 	func() {
-- 
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