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add swap test logic #81

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merged 1 commit into from Apr 6, 2022
Merged

add swap test logic #81

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28 changes: 28 additions & 0 deletions testutils/evm.go
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205 changes: 205 additions & 0 deletions testutils/evm_test.go
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Expand Up @@ -8,13 +8,17 @@ import (
"context"
"github.com/Qitmeer/qng/core/types"
"github.com/Qitmeer/qng/params"
"github.com/Qitmeer/qng/testutils/swap/factory"
"github.com/Qitmeer/qng/testutils/swap/pair"
"github.com/Qitmeer/qng/testutils/swap/router"
"github.com/Qitmeer/qng/testutils/token"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/common"
"github.com/stretchr/testify/assert"
"log"
"math/big"
"testing"
"time"
)

func TestCallErc20Contract(t *testing.T) {
Expand Down Expand Up @@ -140,3 +144,204 @@ func TestCallErc20Contract(t *testing.T) {
assert.Equal(t, ba, big.NewInt(toAmount).Mul(big.NewInt(toAmount), big.NewInt(1e18)))
}
}

func TestSwap(t *testing.T) {
args := []string{"--modules=miner", "--modules=qitmeer",
"--modules=test"}
h, err := NewHarness(t, params.PrivNetParam.Params, args...)
defer h.Teardown()
if err != nil {
t.Errorf("new harness failed: %v", err)
h.Teardown()
}
err = h.Setup()
if err != nil {
t.Fatalf("setup harness failed:%v", err)
}
GenerateBlock(t, h, 20)
AssertBlockOrderAndHeight(t, h, 21, 21, 20)

lockTime := int64(20)
spendAmt := types.Amount{Value: 14000 * types.AtomsPerCoin, Id: types.MEERID}
txid := SendSelf(t, h, spendAmt, nil, &lockTime)
GenerateBlock(t, h, 10)
fee := int64(2200)
txStr, err := h.Wallet.CreateExportRawTx(txid.String(), spendAmt.Value, fee)
if err != nil {
t.Fatalf("createExportRawTx failed:%v", err)
}
log.Println("send tx", txStr)
GenerateBlock(t, h, 2)
ba, err := h.Wallet.GetBalance(h.Wallet.ethAddrs[0].String())
if err != nil {
t.Fatalf("GetBalance failed:%v", err)
}
assert.Equal(t, ba, big.NewInt(spendAmt.Value-fee))
txS, err := h.Wallet.CreateErc20()
if err != nil {
t.Fatal(err)
}
log.Println("create token contract tx:", txS)
txWETH, err := h.Wallet.CreateWETH()
if err != nil {
t.Fatal(err)
}
log.Println("create weth contract tx:", txWETH)
txFACTORY, err := h.Wallet.CreateFactory()
if err != nil {
t.Fatal(err)
}
log.Println("create FACTORY contract tx:", txFACTORY)
GenerateBlock(t, h, 2)
// token addr
txD, err := h.Wallet.evmClient.TransactionReceipt(context.Background(), common.HexToHash(txS))
if err != nil {
t.Fatal(err)
}
if txD == nil {
t.Fatal("create contract failed")
}
txWETHD, err := h.Wallet.evmClient.TransactionReceipt(context.Background(), common.HexToHash(txWETH))
if err != nil {
t.Fatal(err)
}
if txWETHD == nil {
t.Fatal("create weth failed")
}
txFACTORYD, err := h.Wallet.evmClient.TransactionReceipt(context.Background(), common.HexToHash(txFACTORY))
if err != nil {
t.Fatal(err)
}
if txFACTORYD == nil {
t.Fatal("create factory failed")
}
assert.Equal(t, txD.Status, uint64(0x1))
assert.Equal(t, txWETHD.Status, uint64(0x1))
assert.Equal(t, txFACTORYD.Status, uint64(0x1))
log.Println("new token address:", txD.ContractAddress)
log.Println("new weth address:", txWETHD.ContractAddress)
log.Println("new factory address:", txFACTORYD.ContractAddress)
txROUTER, err := h.Wallet.CreateRouter()
if err != nil {
t.Fatal(err)
}
log.Println("create ROUTER contract tx:", txROUTER)
GenerateBlock(t, h, 1)
txROUTERD, err := h.Wallet.evmClient.TransactionReceipt(context.Background(), common.HexToHash(txROUTER))
if err != nil {
t.Fatal(err)
}
if txROUTERD == nil {
t.Fatal("create router failed")
}
assert.Equal(t, txROUTERD.Status, uint64(0x1))
log.Println("new router address:", txROUTERD.ContractAddress)
tokenCall, err := token.NewToken(txD.ContractAddress, h.Wallet.evmClient)
if err != nil {
t.Fatal(err)
}
factoryCall, err := factory.NewToken(txFACTORYD.ContractAddress, h.Wallet.evmClient)
if err != nil {
t.Fatal(err)
}
routerCall, err := router.NewToken(txROUTERD.ContractAddress, h.Wallet.evmClient)
if err != nil {
t.Fatal(err)
}
authCaller, err := h.Wallet.AuthTrans(h.Wallet.privkeys[0])
if err != nil {
t.Fatal(err)
}
_, err = routerCall.SetWETH(authCaller, txWETHD.ContractAddress)
if err != nil {
t.Fatal("SetWETH error", err)
}
_, err = routerCall.SetFactory(authCaller, txFACTORYD.ContractAddress)
if err != nil {
t.Fatal("SetFactory error", err)
}
_, err = tokenCall.Approve(authCaller, txROUTERD.ContractAddress, MAX_UINT256)
if err != nil {
t.Fatal("Approve error", err)
}
GenerateBlock(t, h, 1)
amount := new(big.Int).SetUint64(1e18)
amount = amount.Mul(amount, big.NewInt(1000))
deadline := time.Now().Add(15 * time.Minute).Unix()
authCaller.Value = amount
// add liquidity
_, err = routerCall.AddLiquidityETH(authCaller, txD.ContractAddress, amount, big.NewInt(0), big.NewInt(0), h.Wallet.ethAddrs[0], big.NewInt(deadline))
if err != nil {
t.Fatal("AddLiquidityETH error", err)
}
GenerateBlock(t, h, 1)
// swap for a token
_, _ = h.Wallet.NewAddress()
to := h.Wallet.ethAddrs[1]
// send 10 meer
_, err = h.Wallet.CreateLegacyTx(h.Wallet.privkeys[0], &to, 0, 21000, new(big.Int).Mul(big.NewInt(1e18), big.NewInt(10)), nil)
if err != nil {
t.Fatal(err)
}
GenerateBlock(t, h, 1)
// swap for a token 1 => 1 * 0.9975
authCaller1, err := h.Wallet.AuthTrans(h.Wallet.privkeys[1])
if err != nil {
t.Fatal(err)
}
// 1 meer
authCaller1.Value = big.NewInt(1e18)
path := make([]common.Address, 0)
path = append(path, txWETHD.ContractAddress, txD.ContractAddress)

bas, err := routerCall.GetAmountsOut(&bind.CallOpts{}, big.NewInt(1e18), path)
if err != nil {
t.Fatal("GetAmountsOut error", err)
}
log.Println("expected balance", bas[0].String(), bas[1].String())
deadline = time.Now().Add(15 * time.Minute).Unix()
_, err = routerCall.SwapExactETHForTokens(authCaller1, big.NewInt(0), path, to, big.NewInt(deadline))
if err != nil {
t.Fatal("SwapExactETHForTokens error", err)
}
GenerateBlock(t, h, 1)
ba1, err := tokenCall.BalanceOf(&bind.CallOpts{}, to)
if err != nil {
t.Fatal("BalanceOf Call error", err)
}
assert.Equal(t, ba1, bas[1])
// remove liquidity
// get pair address
p, err := factoryCall.GetPair(&bind.CallOpts{}, txWETHD.ContractAddress, txD.ContractAddress)
if err != nil {
t.Fatal("GetPair Call error", err)
}
pairCall, err := pair.NewToken(p, h.Wallet.evmClient)
if err != nil {
t.Fatal(err)
}
lpBalance, err := pairCall.BalanceOf(&bind.CallOpts{}, h.Wallet.ethAddrs[0])
if err != nil {
t.Fatal(err)
}
authCaller, err = h.Wallet.AuthTrans(h.Wallet.privkeys[0])
if err != nil {
t.Fatal(err)
}
_, err = pairCall.Approve(authCaller, txROUTERD.ContractAddress, MAX_UINT256)
if err != nil {
t.Fatal(err)
}
GenerateBlock(t, h, 1)
deadline = time.Now().Add(15 * time.Minute).Unix()
txRemove, err := routerCall.RemoveLiquidityETH(authCaller, txD.ContractAddress, lpBalance, big.NewInt(0), big.NewInt(0), h.Wallet.ethAddrs[0], big.NewInt(deadline))
if err != nil {
t.Fatal("RemoveLiquidityETH error", err)
}
GenerateBlock(t, h, 1)
txRemoveD, err := h.Wallet.evmClient.TransactionReceipt(context.Background(), txRemove.Hash())
if err != nil {
t.Fatal(err)
}
assert.Equal(t, txRemoveD.Status, uint64(0x1))
}