Fix e2e test

command/rootchain/initcontracts/init_contracts.go

@@ -244,6 +244,7 @@ func initializeCheckpointManager(txRelayer txrelayer.TxRelayer) error {
 	}
 
 	validatorSetMap, err := validatorSetToABISlice(allocs)
+
 	if err != nil {
 		return fmt.Errorf("failed to convert validators to map: %w", err)
 	}

e2e-polybft/bridge_test.go

@@ -183,7 +183,8 @@ func TestE2E_CheckpointSubmission(t *testing.T) {
 	// wait for a couple of blocks
 	require.NoError(t, cluster.WaitForBlock(15, 1*time.Minute))
 
-	txRelayer, err := txrelayer.NewTxRelayer(txrelayer.WithClient(cluster.Servers[0].JSONRPC()))
+	// query rootchain for current checkpoint block
+	txRelayer, err := txrelayer.NewTxRelayer(txrelayer.WithIPAddress(cluster.Bridge.JSONRPCAddr()))
 	require.NoError(t, err)
 
 	checkpointBlockNumInput, err := currentCheckpointBlockNumMethod.Encode([]interface{}{})
@@ -192,8 +193,8 @@ func TestE2E_CheckpointSubmission(t *testing.T) {
 	checkpointBlockNumRaw, err := txRelayer.Call(rootchainSender, checkpointManagerAddr, checkpointBlockNumInput)
 	require.NoError(t, err)
 
-	latestCheckpointBlockNum, err := strconv.ParseUint(checkpointBlockNumRaw, 0, 64)
+	latestCheckpointBlockNum, err := strconv.ParseInt(checkpointBlockNumRaw, 0, 64)
 	require.NoError(t, err)
 
-	require.Equal(t, 10, latestCheckpointBlockNum)
+	require.Equal(t, int64(10), latestCheckpointBlockNum)
 }

e2e-polybft/framework/test-bridge.go

@@ -101,6 +101,10 @@ func (t *TestBridge) Stop() {
 	t.node = nil
 }
 
+func (t *TestBridge) JSONRPCAddr() string {
+	return fmt.Sprintf("http://%s:%d", hostIP, 8545)
+}
+
 // runCommand executes command with given arguments
 func runCommand(binary string, args []string, stdout io.Writer) error {
 	var stdErr bytes.Buffer