metarare_api-main/helpers/eth_test.go

package helpers

import (
	"bytes"
	"context"
	"crypto/ecdsa"
	"fmt"
	"log"
	"math/big"
	"math/rand"
	"testing"
	"time"

	"github.com/ethereum/go-ethereum/accounts/abi/bind"
	"github.com/ethereum/go-ethereum/common"
	"github.com/ethereum/go-ethereum/common/hexutil"
	"github.com/ethereum/go-ethereum/crypto"
	validator "github.com/metarare/metarare_api/contracts/Validator"
	"github.com/metarare/metarare_api/contracts/operator"
)

var fromPrivateKey string = "a515318d067530ba1dfbebcf00ad549eaa90b0d334dd324cdf3d739cb5311840"
var fromAddress string = "0xb0A4b81d9e31276C7Ec25F0eD1c25D85aCC831b3"

var signerPrivateKey string = fromPrivateKey
var signerAddress string = fromAddress

var signerNotCollectionOwnerPrivateKey string = "a91e138b57ca7fb7560dd91e26bd18fcecf03feb4a912c84df4b380378a53231"
var signerNotCollectionOwnerAddress string = "0xc4F0AD24c3Bdf17e39988ee2f8386e495B31bda3"

var buyerPrivatekey string = "a515318d067530ba1dfbebcf00ad549eaa90b0d334dd324cdf3d739cb5311840"
var buyerAddress string = "0x3bF06584120898E4aB801218379cF0f2b3Fd8E3A"

var resellerPrivateKey string = buyerPrivatekey
var resellerAddress string = buyerAddress

var receiptorPrivateKey string = "0826109c35ce56ff35173251d13223dc2861e4f8a72408041206cd8ef131d1e9"
var receiptorAddress string = "0xBD5CA15AFd02699bDf52235FBFD5eba65A5b8cB9"

func Test_getBalance(t *testing.T) {
	mf1, mr, eth := GetBalance(buyerAddress)

	t.Logf("mf1(%f)\nmr(%f)\neth(%f)", mf1, mr, eth)
}

func Test_generateWallet(t *testing.T) {
	privKey, pubKey := GenerateWallet()

	t.Logf("privateKey(%s)\n address(%s)", privKey, pubKey)
}

func Test_gasPrice(t *testing.T) {
	_, _clientSet := UseContract()

	gasPrice, err := _clientSet.RpcClient.SuggestGasPrice(context.Background())
	if err != nil {

	}
	t.Errorf("Estimated gas price:%s\n", gasPrice.String())
}

func Test_ApproveMR(t *testing.T) {

	_amount := big.NewInt(300)
	_amount = _amount.Mul(_amount, Decimal)

	tx, spender, value, err := ApproveForERC20(MetaRare, fromPrivateKey, _amount)
	if err != nil {
		t.Error(err)
		return
	}
	t.Logf("\n\tApprove done, \n\t\ttxhash : %s\n\t\tspender : %s\n\t\tvalue : %s", tx.Hash().String(), spender, value)
}

func Test_ApproveMF1(t *testing.T) {

	_amount := big.NewInt(300)
	_amount = _amount.Mul(_amount, Decimal)

	tx, spender, value, err := ApproveForERC20(MetaFinance, fromPrivateKey, _amount)
	if err != nil {
		t.Error(err)
		return
	}
	t.Logf("\n\tApprove done, \n\t\ttxhash : %s\n\t\tspender : %s\n\t\tvalue : %s", tx.Hash().String(), spender, value)
}

func Test_Allowance(t *testing.T) {
	_contracts, _ := UseContract()
	ownerAddress := "0x3bF06584120898E4aB801218379cF0f2b3Fd8E3A"
	collectionAddress := Addr_Operator
	options := bind.CallOpts{}
	allowanceAmount, err := _contracts.MetaRare.Allowance(&options, common.HexToAddress(ownerAddress), common.HexToAddress(collectionAddress))
	if err != nil {
		t.Error(err)
		return
	}
	t.Log("allowanceAmount :", allowanceAmount.String())
}

func Test_AllowanceForOperator(t *testing.T) {
	address := "0xb0A4b81d9e31276C7Ec25F0eD1c25D85aCC831b3"
	mtraAmount, err := GetAllowance(MetaRare, address)
	if err != nil {
		t.Error(err)
	}

	mf1Amount, err := GetAllowance(MetaFinance, address)
	if err != nil {
		t.Error(err)
	}

	t.Logf("Allownacne MTRA(%s) / MF1(%s)", mtraAmount.String(), mf1Amount.String())
}
func Test_TransferMetarer(t *testing.T) {

	_amount := big.NewInt(300)
	_amount = _amount.Mul(_amount, Decimal)
	err, tx := TransferMetaRare(fromPrivateKey, receiptorAddress, _amount)
	if err != nil {
		t.Error(err)
	}
	t.Logf("txhash : %s", string(tx.Hash().Hex()))
}
func Test_TransferFianace(t *testing.T) {

	_amount := big.NewInt(300)
	_amount = _amount.Mul(_amount, Decimal)
	err, tx := TransferMetaFinance(fromPrivateKey, receiptorAddress, _amount)
	if err != nil {
		t.Error(err)
	}
	t.Logf("txhash : %s", string(tx.Hash().Hex()))
}
func Test_TransferETH(t *testing.T) {

	_amount := big.NewInt(150)
	_amount = _amount.Mul(_amount, Decimal)
	err, tx := TransferETH(fromPrivateKey, buyerAddress, _amount)
	if err != nil {
		t.Error(err)
	}
	t.Logf("txhash : %s", string(tx.Hash().Hex()))
}
func BenchmarkSum(b *testing.B) {
	_amount := big.NewInt(300)
	_amount = _amount.Mul(_amount, Decimal)
	err, tx := TransferMetaRare(fromPrivateKey, receiptorAddress, _amount)
	if err != nil {
		b.Error(err)
	}
	b.Errorf("txhash : %s", string(tx.Hash().Hex()))
}
func Test_ExcuteOrderWith721MintingAndResale(t *testing.T) {

	rand.Seed(time.Now().Unix())
	_v := operator.MetaRareOperatorNFTVoucher{
		Signer:       common.HexToAddress(signerAddress),
		TokenAddress: common.HexToAddress("0xe991f1cae62315fd6eb80c7e3e16f712b34fe913"), // ganache
		// TokenAddress:    common.HexToAddress("0x9d882514a1bdF0cb8E23F3F45320F3E1f6e31231"), // rinkeby
		TokenType:       big.NewInt(0),
		TokenId:         big.NewInt(int64(rand.Intn(100000))),
		Price:           big.NewInt(500000000000000000), // 0.05 eth
		Balance:         big.NewInt(10),
		CreationTax:     big.NewInt(1000),
		Uri:             "nftinfo.metarare-net.com/721/",
		AssetAddress:    common.HexToAddress("0x0000000000000000000000000000000000000000"),
		TotalBalance:    big.NewInt(0),
		TreasuryTax:     big.NewInt(1000),
		TreasuryAddress: common.HexToAddress("0x3A3d5A9395b5A8210008951aAe286A1169cD3A6C"),
	}

	fmt.Println(">>>>>>>>>>>>>>>>>>>>>> Singinig <<<<<<<<<<<<<<<<<<<<<<<<")
	signature, hashedData, err := Signing(_v, signerPrivateKey)
	if err != nil {
		t.Error(err)
	}

	var _hashedData [32]byte
	var _signature [65]byte
	copy(_hashedData[:], hashedData)
	copy(_signature[:], signature)

	fmt.Println(">>>>>>>>>>>>>>>>>>>>>> Order721 With Mint <<<<<<<<<<<<<<<<<<<<<<<<")
	tx, _, err := Order721WithMinting(_v, _hashedData, buyerPrivatekey, _signature, false)
	if err != nil {
		t.Error(err)
	}
	t.Logf("\tTokenInfo: TokenID(%d)", _v.TokenId)
	t.Logf("\tTxHash: %s", tx.Hash().String())

	fmt.Println(">>>>>>>>>>>>>>>>>>>>>> 2nd Signing <<<<<<<<<<<<<<<<<<<<<<<<")
	//resale
	_v.Signer = common.HexToAddress(resellerAddress)

	signature, hashedData, err = Signing(_v, resellerPrivateKey)
	if err != nil {
		t.Error(err)
	}

	copy(_hashedData[:], hashedData)
	copy(_signature[:], signature)

	fmt.Println(">>>>>>>>>>>>>>>>>>>>>> Order721 Only transfer <<<<<<<<<<<<<<<<<<<<<<<<")
	tx, _, err = Order721OnlyTransfer(_v, _hashedData, receiptorPrivateKey, _signature)
	if err != nil {
		t.Error(err)
	}
	t.Logf("\tTokenInfo: TokenID(%d)", _v.TokenId)
	t.Logf("\tTxHash: %s", tx.Hash())
}
func Test_ExcuteOrderWithGenenal721MintingAndResale(t *testing.T) {

	rand.Seed(time.Now().Unix())
	_v := operator.MetaRareOperatorNFTVoucher{
		Signer:          common.HexToAddress(signerNotCollectionOwnerAddress),
		TokenAddress:    common.HexToAddress("0x2cc3a50c023edfc9039b72e97bad31f2739c71c1"), // ganache
		TokenType:       big.NewInt(0),
		TokenId:         big.NewInt(int64(rand.Intn(100000))),
		Price:           big.NewInt(500000000000000), // 0.05 eth
		Balance:         big.NewInt(10),
		CreationTax:     big.NewInt(1000),
		Uri:             "nftinfo.metarare-net.com/721/",
		AssetAddress:    common.HexToAddress("0x0000000000000000000000000000000000000000"),
		TotalBalance:    big.NewInt(0),
		TreasuryTax:     big.NewInt(1000),
		TreasuryAddress: common.HexToAddress("0x3A3d5A9395b5A8210008951aAe286A1169cD3A6C"),
	}

	fmt.Println(">>>>>>>>>>>>>>>>>>>>>> Singinig <<<<<<<<<<<<<<<<<<<<<<<<")
	signature, hashedData, err := Signing(_v, signerNotCollectionOwnerPrivateKey)
	if err != nil {
		t.Error(err)
	}

	var _hashedData [32]byte
	var _signature [65]byte
	copy(_hashedData[:], hashedData)
	copy(_signature[:], signature)

	fmt.Println(">>>>>>>>>>>>>>>>>>>>>> Order721 With Mint <<<<<<<<<<<<<<<<<<<<<<<<")
	tx, _, err := Order721WithMinting(_v, _hashedData, buyerPrivatekey, _signature, true)
	if err != nil {
		t.Error(err)
		return
	}
	t.Logf("\tTokenInfo: TokenID(%d)", _v.TokenId)
	t.Logf("\tTxHash: %s", tx.Hash().String())

	fmt.Println(">>>>>>>>>>>>>>>>>>>>>> 2nd Signing <<<<<<<<<<<<<<<<<<<<<<<<")
	//resale
	_v.Signer = common.HexToAddress(resellerAddress)

	signature, hashedData, err = Signing(_v, resellerPrivateKey)
	if err != nil {
		t.Error(err)
	}

	copy(_hashedData[:], hashedData)
	copy(_signature[:], signature)

	fmt.Println(">>>>>>>>>>>>>>>>>>>>>> Order721 Only transfer <<<<<<<<<<<<<<<<<<<<<<<<")
	tx, _, err = Order721OnlyTransfer(_v, _hashedData, receiptorPrivateKey, _signature)
	if err != nil {
		t.Error(err)
	}
	t.Logf("\tTokenInfo: TokenID(%d)", _v.TokenId)
	t.Logf("\tTxHash: %s", tx.Hash())
}
func Test_ExcuteOrderWith721MintingUsingMetaRare(t *testing.T) {

	UseContract()
	privateKey, err := crypto.HexToECDSA(signerPrivateKey)
	if err != nil {
		log.Fatal(err)
	}

	publicKey := privateKey.Public()
	publicKeyECDSA, ok := publicKey.(*ecdsa.PublicKey)
	if !ok {
		log.Fatal("error casting public key to ECDSA")
	}

	publicKeyBytes := crypto.FromECDSAPub(publicKeyECDSA)

	// Sign
	rand.Seed(time.Now().Unix())
	_price := big.NewInt(10)
	_price = _price.Mul(_price, Decimal)
	_v := operator.MetaRareOperatorNFTVoucher{
		Signer:          common.HexToAddress(signerAddress),
		TokenAddress:    common.HexToAddress("0xa1696e6ef9dd93d699990cce3142a482883bb320"), // ganache
		TokenType:       big.NewInt(0),
		TokenId:         big.NewInt(int64(rand.Intn(100000))),
		Price:           _price,
		Balance:         big.NewInt(10),
		CreationTax:     big.NewInt(1000),
		Uri:             "nftinfo.metarare-net.com/721/",
		AssetAddress:    common.HexToAddress(Addr_metaRare),
		TotalBalance:    big.NewInt(0),
		TreasuryTax:     big.NewInt(1000),
		TreasuryAddress: common.HexToAddress("0x3A3d5A9395b5A8210008951aAe286A1169cD3A6C"),
	}

	signature, hashedData, err := Signing(_v, signerPrivateKey)
	if err != nil {
		t.Error(err)
	}

	// fmt.Printf("\nsignature :%s\n", hexutil.Encode(signature))
	/////////////////////////////////////////////////////// verify signature
	sigPublicKey, err := crypto.Ecrecover(hashedData, signature)
	if err != nil {
		log.Fatal(err)
	}
	matches := bytes.Equal(sigPublicKey, publicKeyBytes)
	// fmt.Println("sigPublicKey:", sigPublicKey)
	// fmt.Println("publicKeyBytes:", publicKeyBytes)
	// fmt.Printf("verify result :%+v ", matches) // true
	if !matches {
		t.Errorf("match result %v:", matches)
	}
	///////////////////////////////////////////////////////////// verify with smartcontract

	var _hashedData [32]byte
	var _signature [65]byte
	copy(_hashedData[:], hashedData)
	copy(_signature[:], signature)

	/*
		recovered_address, err := RecoverAddress(_hashedData, _signature)
		if err != nil {
			fmt.Print(err)
		}
		fmt.Println("recovered_address :", hexutil.Encode(recovered_address[:]))
	*/
	///////////////////////////////////////////////////// end of verification

	tx, _, _, err := ApproveForERC20(MetaRare, buyerPrivatekey, _price)
	if err != nil {
		t.Error(err)
		return
	}

	copy(_hashedData[:], hashedData)
	copy(_signature[:], signature)

	tx, _, err = Order721WithMinting(_v, _hashedData, buyerPrivatekey, _signature, false)
	if err != nil {
		t.Error(err)
		return
	}
	t.Logf("\tTokenInfo: TokenID(%d)", _v.TokenId)
	t.Logf("\tTxHash: %s", tx.Hash())

}
func Test_ExcuteOrderWith721Minting(t *testing.T) {

	privateKey, err := crypto.HexToECDSA(signerPrivateKey)
	if err != nil {
		log.Fatal(err)
	}

	publicKey := privateKey.Public()
	publicKeyECDSA, ok := publicKey.(*ecdsa.PublicKey)
	if !ok {
		log.Fatal("error casting public key to ECDSA")
	}

	publicKeyBytes := crypto.FromECDSAPub(publicKeyECDSA)

	// Sign

	rand.Seed(time.Now().Unix())
	_v := operator.MetaRareOperatorNFTVoucher{
		Signer:          common.HexToAddress(signerAddress),
		TokenAddress:    common.HexToAddress("0xe991f1cae62315fd6eb80c7e3e16f712b34fe913"), // ganache
		TokenType:       big.NewInt(0),
		TokenId:         big.NewInt(int64(rand.Intn(100000))),
		Price:           big.NewInt(200000000000000000), // 0.05 eth
		Balance:         big.NewInt(10),
		CreationTax:     big.NewInt(1000),
		Uri:             "nftinfo.metarare-net.com/721/",
		AssetAddress:    common.HexToAddress("0x0000000000000000000000000000000000000000"),
		TotalBalance:    big.NewInt(0),
		TreasuryTax:     big.NewInt(1000),
		TreasuryAddress: common.HexToAddress("0x3A3d5A9395b5A8210008951aAe286A1169cD3A6C"),
	}

	signature, hashedData, err := Signing(_v, signerPrivateKey)
	if err != nil {
		t.Error(err)
	}

	// fmt.Printf("\nsignature :%s\n", hexutil.Encode(signature))
	/////////////////////////////////////////////////////// verify signature
	sigPublicKey, err := crypto.Ecrecover(hashedData, signature)
	if err != nil {
		log.Fatal(err)
	}
	matches := bytes.Equal(sigPublicKey, publicKeyBytes)
	// fmt.Println("sigPublicKey:", sigPublicKey)
	// fmt.Println("publicKeyBytes:", publicKeyBytes)
	// fmt.Printf("verify result :%+v ", matches) // true
	if !matches {
		t.Errorf("match result %v:", matches)
	}
	///////////////////////////////////////////////////////////// verify with smartcontract

	var _hashedData [32]byte
	var _signature [65]byte
	copy(_hashedData[:], hashedData)
	copy(_signature[:], signature)

	/*
		recovered_address, err := RecoverAddress(_hashedData, _signature)
		if err != nil {
			fmt.Print(err)
		}
		fmt.Println("recovered_address :", hexutil.Encode(recovered_address[:]))
	*/
	///////////////////////////////////////////////////// end of verification

	copy(_hashedData[:], hashedData)
	copy(_signature[:], signature)

	tx, _, err := Order721WithMinting(_v, _hashedData, buyerPrivatekey, _signature, false)
	if err != nil {
		t.Error(err)
	}
	t.Logf("\tTokenInfo: TokenID(%d)", _v.TokenId)
	t.Logf("\tTxHash: %s", tx.Hash())

}

func Test_ExcuteOrderWith1155MintingAndResale(t *testing.T) {

	rand.Seed(time.Now().Unix())
	_v := operator.MetaRareOperatorNFTVoucher{
		Signer:          common.HexToAddress(signerAddress),
		TokenAddress:    common.HexToAddress("0x22d5bfef4624bcba4c82cdc35355933f95c234a7"),
		TokenType:       big.NewInt(0),
		TokenId:         big.NewInt(int64(rand.Intn(100000))),
		Price:           big.NewInt(500000000000000), // 0.05 eth
		Balance:         big.NewInt(2),
		CreationTax:     big.NewInt(1000),
		Uri:             "nftinfo.metarare-net.com/1155/",
		AssetAddress:    common.HexToAddress("0x0000000000000000000000000000000000000000"),
		TotalBalance:    big.NewInt(10),
		TreasuryTax:     big.NewInt(1000),
		TreasuryAddress: common.HexToAddress("0x3A3d5A9395b5A8210008951aAe286A1169cD3A6C"),
	}

	fmt.Println(">>>>>>>>>>>>>>>>>>>>>> Singinig <<<<<<<<<<<<<<<<<<<<<<<<")
	signature, hashedData, err := Signing(_v, signerPrivateKey)
	if err != nil {
		t.Error(err)
	}

	var _hashedData [32]byte
	var _signature [65]byte
	copy(_hashedData[:], hashedData)
	copy(_signature[:], signature)

	fmt.Println(">>>>>>>>>>>>>>>>>>>>>> Order1155 With Mint <<<<<<<<<<<<<<<<<<<<<<<<")
	tx, _, err := Order1155WithMinting(_v, _hashedData, buyerPrivatekey, _signature, false)
	if err != nil {
		t.Error(err)
	}
	t.Logf("\tTokenInfo: TokenID(%d)", _v.TokenId)
	t.Logf("\tTxHash: %s", tx.Hash().String())

	fmt.Println(">>>>>>>>>>>>>>>>>>>>>> 2nd Signing <<<<<<<<<<<<<<<<<<<<<<<<")
	//resale
	_v.Signer = common.HexToAddress(resellerAddress)

	signature, hashedData, err = Signing(_v, resellerPrivateKey)
	if err != nil {
		t.Error(err)
	}

	copy(_hashedData[:], hashedData)
	copy(_signature[:], signature)

	fmt.Println(">>>>>>>>>>>>>>>>>>>>>> Order1155 Only transfer <<<<<<<<<<<<<<<<<<<<<<<<")
	tx, _, err = Order1155OnlyTransfer(_v, _hashedData, receiptorPrivateKey, _signature)
	if err != nil {
		t.Error(err)
	}
	t.Logf("\tTokenInfo: TokenID(%d)", _v.TokenId)
	t.Logf("\tTxHash: %s", tx.Hash())
}

func Test_ExcuteOrderWithGenenal1155MintingAndResale(t *testing.T) {

	fmt.Print(`
	 ===========================================================================
	 ===========================================================================
	 ===========This test for genenal collection 											 =========
	 ===========================================================================
	`)
	rand.Seed(time.Now().Unix())
	_v := operator.MetaRareOperatorNFTVoucher{
		Signer:          common.HexToAddress(signerNotCollectionOwnerAddress),
		TokenAddress:    common.HexToAddress("0x22d5bfef4624bcba4c82cdc35355933f95c234a7"),
		TokenType:       big.NewInt(0),
		TokenId:         big.NewInt(int64(rand.Intn(100000))),
		Price:           big.NewInt(500000000000000), // 0.05 eth
		Balance:         big.NewInt(2),
		CreationTax:     big.NewInt(1000),
		Uri:             "nftinfo.metarare-net.com/1155/",
		AssetAddress:    common.HexToAddress("0x0000000000000000000000000000000000000000"),
		TotalBalance:    big.NewInt(10),
		TreasuryTax:     big.NewInt(1000),
		TreasuryAddress: common.HexToAddress("0x3A3d5A9395b5A8210008951aAe286A1169cD3A6C"),
	}

	fmt.Println(">>>>>>>>>>>>>>>>>>>>>> Singinig <<<<<<<<<<<<<<<<<<<<<<<<")
	signature, hashedData, err := Signing(_v, signerNotCollectionOwnerPrivateKey)
	if err != nil {
		t.Error(err)
	}

	var _hashedData [32]byte
	var _signature [65]byte
	copy(_hashedData[:], hashedData)
	copy(_signature[:], signature)

	fmt.Println(">>>>>>>>>>>>>>>>>>>>>> Order1155 With Mint <<<<<<<<<<<<<<<<<<<<<<<<")
	tx, _, err := Order1155WithMinting(_v, _hashedData, buyerPrivatekey, _signature, true)
	if err != nil {
		t.Error(err)
		return
	}
	t.Logf("\tTokenInfo: TokenID(%d)", _v.TokenId)
	t.Logf("\tTxHash: %s", tx.Hash().String())

	fmt.Println(">>>>>>>>>>>>>>>>>>>>>> 2nd Signing <<<<<<<<<<<<<<<<<<<<<<<<")
	//resale
	_v.Signer = common.HexToAddress(resellerAddress)

	signature, hashedData, err = Signing(_v, resellerPrivateKey)
	if err != nil {
		t.Error(err)
	}

	copy(_hashedData[:], hashedData)
	copy(_signature[:], signature)

	fmt.Println(">>>>>>>>>>>>>>>>>>>>>> Order1155 Only transfer <<<<<<<<<<<<<<<<<<<<<<<<")
	tx, _, err = Order1155OnlyTransfer(_v, _hashedData, receiptorPrivateKey, _signature)
	if err != nil {
		t.Error(err)
	}
	t.Logf("\tTokenInfo: TokenID(%d)", _v.TokenId)
	t.Logf("\tTxHash: %s", tx.Hash())
}
func Test_ExcuteOrderWith1155Minting(t *testing.T) {

	privateKey, err := crypto.HexToECDSA(signerPrivateKey)
	if err != nil {
		log.Fatal(err)
	}

	publicKey := privateKey.Public()
	publicKeyECDSA, ok := publicKey.(*ecdsa.PublicKey)
	if !ok {
		log.Fatal("error casting public key to ECDSA")
	}

	publicKeyBytes := crypto.FromECDSAPub(publicKeyECDSA)

	// Sign

	rand.Seed(time.Now().Unix())
	_v := operator.MetaRareOperatorNFTVoucher{
		Signer:          common.HexToAddress(signerAddress),
		TokenAddress:    common.HexToAddress("0x22d5bfef4624bcba4c82cdc35355933f95c234a7"), // ganache
		TokenType:       big.NewInt(0),
		TokenId:         big.NewInt(int64(rand.Intn(100000))),
		Price:           big.NewInt(500000000000000), // 0.05 eth
		Balance:         big.NewInt(3),
		TotalBalance:    big.NewInt(10),
		CreationTax:     big.NewInt(1000),
		Uri:             "nftinfo.metarare-net.com/1155/",
		AssetAddress:    common.HexToAddress("0x0000000000000000000000000000000000000000"),
		TreasuryTax:     big.NewInt(1000),
		TreasuryAddress: common.HexToAddress("0x3A3d5A9395b5A8210008951aAe286A1169cD3A6C"),
	}

	signature, hashedData, err := Signing(_v, signerPrivateKey)
	// _data := "this is a message for you"
	// signature, hashedData, err := SigningString(_data, signerPrivateKey)
	if err != nil {
		t.Error(err)
	}
	// fmt.Printf("signature :%s\n", hexutil.Encode(signature))
	/////////////////////////////////////////////////////// verify signature
	sigPublicKey, err := crypto.Ecrecover(hashedData, signature)
	if err != nil {
		log.Fatal(err)
	}
	matches := bytes.Equal(sigPublicKey, publicKeyBytes)
	// fmt.Println("sigPublicKey:", sigPublicKey)
	// fmt.Println("publicKeyBytes:", publicKeyBytes)
	// fmt.Printf("verify result :%+v ", matches) // true
	if !matches {
		t.Errorf("match result %v:", matches)
	}
	///////////////////////////////////////////////////////////// verify with smartcontract

	var _hashedData [32]byte
	var _signature [65]byte
	copy(_hashedData[:], hashedData)
	copy(_signature[:], signature)

	/*
		recovered_address, err := RecoverAddress(_hashedData, _signature)
		if err != nil {
			fmt.Print(err)
		}
		fmt.Println("recovered_address :", hexutil.Encode(recovered_address[:]))
	*/
	///////////////////////////////////////////////////// end of verification

	copy(_hashedData[:], hashedData)
	copy(_signature[:], signature)

	tx, _, err := Order1155WithMinting(_v, _hashedData, buyerPrivatekey, _signature, false)
	if err != nil {
		t.Error(err)
	}
	t.Logf("\tTokenInfo: TokenID(%d)", _v.TokenId)
	t.Logf("\tTxHash: %s", tx.Hash())
}
func Test_Create721Collection(t *testing.T) {

	info := EIP721{
		NFTBasic: &NFTBasic{
			Name:   "Name721",
			Symbol: "Symbol721",
		},
		BaseURI: "https://nftinfo.meta-rare.net/721",
	}
	err, resp := CreateCollection721(info, fromPrivateKey)
	if err != nil {
		t.Error(err)
		return
	}
	t.Log("\tcreated 721 collection address:", resp.CollectionAddress)
	t.Log("\ttxhash : ", string(resp.Tx.Hash().Hex()))
}

func Test_Create1155Collection(t *testing.T) {

	info := EIP1155{
		NFTBasic: &NFTBasic{
			Name:   "Name1155",
			Symbol: "Symbol1155",
		},
		CustomURI: "https://nftinfo.meta-rare.net/1155/",
	}
	err, resp := CreateCollection1155(info, fromPrivateKey)
	if err != nil {
		t.Error(err)
		return
	}
	t.Log("\tcreated 1155 collection address:", resp.CollectionAddress)
	t.Log("\ttxhash : ", string(resp.Tx.Hash().Hex()))
}

func Test_SignAndVerify(t *testing.T) {
	// make contract instance
	_rpc, _ := getClient()
	fromPrivateKey := "9f96a06224761b4d3c804111d86244559e1c93a16146a2b21b1b36feda091c87"
	_validator, _ := validator.NewValidator(common.HexToAddress("0x0E3Faa3C4b3224570Af8023050845990222cE1f6"), _rpc)
	// err, auth := makeAuth(_rpc, fromPrivateKey, "0x0E3Faa3C4b3224570Af8023050845990222cE1f6", nil)
	// if err != nil {
	// }
	//sign
	privKey, err := crypto.HexToECDSA(fromPrivateKey)
	publicKey := privKey.Public()
	publicKeyECDSA, ok := publicKey.(*ecdsa.PublicKey)
	if !ok {
		log.Fatal("error casting public key to ECDSA")
	}
	_address := crypto.PubkeyToAddress(*publicKeyECDSA).Hex()
	fmt.Println("address : ", _address)
	// signing
	_data := "this is a message for you"
	hashRaw := crypto.Keccak256([]byte(_data))
	signature, _ := crypto.Sign(hashRaw, privKey)
	fmt.Println("signature:", hexutil.Encode(signature))
	// transaction
	options := bind.CallOpts{}

	var hash32 [32]byte
	var r32 [32]byte
	var s32 [32]byte

	copy(hash32[:], hashRaw[:])
	copy(r32[:], signature[:32])
	copy(s32[:], signature[32:64])
	fmt.Println("signature's length :", len(signature))
	fmt.Println("R: ", signature[64])
	decodeAddress, err := _validator.RecoverAddress(&options, hash32, signature[64]+27, r32, s32)
	if err != nil {
		t.Error(err)
	}
	fmt.Printf("decodedAddress :%s", decodeAddress)
	// t.Error(decodeAddress)
}