add blockchain stop back

Author: JonathanOppenheimer

core/blockchain_ext_test.go

@@ -215,6 +215,8 @@ func checkBlockChainState(
 	newChainDataDir := copyFlatDir(t, oldChainDataDir)
 	restartedChain, err := create(originalDB, gspec, lastAcceptedBlock.Hash(), newChainDataDir)
 	require.NoError(err)
+	defer restartedChain.Stop()
+
 	currentBlock := restartedChain.CurrentBlock()
 	require.Equal(lastAcceptedBlock.Hash(), currentBlock.Hash(), "Restarted chain's current block does not match last accepted block")
 	restartedLastAcceptedBlock := restartedChain.LastConsensusAcceptedBlock()

sync/statesync/code_syncer_test.go

@@ -61,8 +61,7 @@ func testCodeSyncer(t *testing.T, test codeSyncerTest) {
 	codeSyncer.start(context.Background())
 
 	for _, codeHashes := range test.codeRequestHashes {
-		err := codeSyncer.addCode(codeHashes)
-		require.NoError(t, err)
+		require.NoError(t, codeSyncer.addCode(codeHashes))
 	}
 	codeSyncer.notifyAccountTrieCompleted()