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package fees
import (
"math/big"
"testing"
"github.com/ethereum/go-ethereum/params"
)
var l1GasLimitTests = map[string]struct {
data []byte
overhead uint64
expect *big.Int
}{
"simple": {[]byte{}, 0, big.NewInt(0)},
"simple-overhead": {[]byte{}, 10, big.NewInt(10)},
"zeros": {[]byte{0x00, 0x00, 0x00, 0x00}, 10, big.NewInt(26)},
"ones": {[]byte{0x01, 0x02, 0x03, 0x04}, 200, big.NewInt(16*4 + 200)},
}
func TestL1GasLimit(t *testing.T) {
for name, tt := range l1GasLimitTests {
t.Run(name, func(t *testing.T) {
got := calculateL1GasLimit(tt.data, tt.overhead)
if got.Cmp(tt.expect) != 0 {
t.Fatal("Calculated gas limit does not match")
}
})
}
}
var feeTests = map[string]struct {
dataLen int
l1GasPrice uint64
l2GasLimit uint64
l2GasPrice uint64
}{
"simple": {
dataLen: 10,
l1GasPrice: params.GWei,
l2GasLimit: 437118,
l2GasPrice: params.GWei,
},
"zero-l2-gasprice": {
dataLen: 10,
l1GasPrice: params.GWei,
l2GasLimit: 196205,
l2GasPrice: 0,
},
"one-l2-gasprice": {
dataLen: 10,
l1GasPrice: params.GWei,
l2GasLimit: 196205,
l2GasPrice: 1,
},
"zero-l1-gasprice": {
dataLen: 10,
l1GasPrice: 0,
l2GasLimit: 196205,
l2GasPrice: params.GWei,
},
"one-l1-gasprice": {
dataLen: 10,
l1GasPrice: 1,
l2GasLimit: 23255,
l2GasPrice: params.GWei,
},
"zero-gasprices": {
dataLen: 10,
l1GasPrice: 0,
l2GasLimit: 23255,
l2GasPrice: 0,
},
"max-gaslimit": {
dataLen: 10,
l1GasPrice: params.GWei,
l2GasLimit: 99_970_000,
l2GasPrice: params.GWei,
},
"larger-divisor": {
dataLen: 10,
l1GasPrice: 0,
l2GasLimit: 10,
l2GasPrice: 0,
},
}
func TestCalculateRollupFee(t *testing.T) {
for name, tt := range feeTests {
t.Run(name, func(t *testing.T) {
data := make([]byte, tt.dataLen)
l1GasPrice := new(big.Int).SetUint64(tt.l1GasPrice)
l2GasLimit := new(big.Int).SetUint64(tt.l2GasLimit)
l2GasPrice := new(big.Int).SetUint64(tt.l2GasPrice)
fee := EncodeTxGasLimit(data, l1GasPrice, l2GasLimit, l2GasPrice)
decodedGasLimit := DecodeL2GasLimit(fee)
roundedL2GasLimit := Ceilmod(l2GasLimit, BigTenThousand)
if roundedL2GasLimit.Cmp(decodedGasLimit) != 0 {
t.Errorf("rollup fee check failed: expected %d, got %d", l2GasLimit.Uint64(), decodedGasLimit)
}
})
}
}