From 565e9bf79a17e04077603900639389a5cd8a41a2 Mon Sep 17 00:00:00 2001
From: zjubfd <296179868@qq.com>
Date: Tue, 11 Jan 2022 11:01:22 +0800
Subject: [PATCH] update comments

fix ut
---
 core/blockchain_diff_test.go | 2 +-
 core/state_prefetcher.go     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/core/blockchain_diff_test.go b/core/blockchain_diff_test.go
index facd86b52b..451a966589 100644
--- a/core/blockchain_diff_test.go
+++ b/core/blockchain_diff_test.go
@@ -372,7 +372,7 @@ func TestFreezeDiffLayer(t *testing.T) {
 		t.Errorf("size of diff queue is wrong, expected: %d, get: %d", blockNum-1, fullBackend.chain.diffQueue.Size())
 	}
 
-	time.Sleep(diffLayerFreezerRecheckInterval + 1*time.Second)
+	time.Sleep(diffLayerFreezerRecheckInterval + 2*time.Second)
 	if fullBackend.chain.diffQueue.Size() != int(fullBackend.chain.triesInMemory) {
 		t.Errorf("size of diff queue is wrong, expected: %d, get: %d", blockNum, fullBackend.chain.diffQueue.Size())
 	}
diff --git a/core/state_prefetcher.go b/core/state_prefetcher.go
index a6b80d2449..ec4e7bf972 100644
--- a/core/state_prefetcher.go
+++ b/core/state_prefetcher.go
@@ -36,7 +36,7 @@ type statePrefetcher struct {
 	engine consensus.Engine    // Consensus engine used for block rewards
 }
 
-// newStatePrefetcher initialises a new statePrefetcher.
+// NewStatePrefetcher initialises a new statePrefetcher.
 func NewStatePrefetcher(config *params.ChainConfig, bc *BlockChain, engine consensus.Engine) *statePrefetcher {
 	return &statePrefetcher{
 		config: config,