[NOD-1273] Order parents in PrepareBlockForTest (#872)

domain/blockdag/test_utils.go

@@ -317,8 +317,10 @@ func PrepareBlockForTest(dag *BlockDAG, parentHashes []*daghash.Hash, transactio
 
 	timestamp := node.parents.bluest().PastMedianTime(dag)
 	msgBlock.Header = domainmessage.BlockHeader{
-		Version:              blockVersion,
-		ParentHashes:         parentHashes,
+		Version: blockVersion,
+
+		// We use parents.hashes() and not parentHashes because parents.hashes() is sorted.
+		ParentHashes:         parents.hashes(),
 		HashMerkleRoot:       hashMerkleTree.Root(),
 		AcceptedIDMerkleRoot: calculatedAccepetedIDMerkleRoot,
 		UTXOCommitment:       &calculatedMultisetHash,

network/netadapter/standalone/minimal_net_adapter.go

@@ -1,10 +1,11 @@
 package standalone
 
 import (
-	"github.com/kaspanet/kaspad/util/mstime"
 	"sync"
 
 	"github.com/kaspanet/kaspad/network/netadapter/id"
+	"github.com/kaspanet/kaspad/util/mstime"
+
 	"github.com/kaspanet/kaspad/network/protocol/common"
 
 	"github.com/kaspanet/kaspad/network/domainmessage"