mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-24 12:37:16 +00:00
44 lines
1.5 KiB
Go
44 lines
1.5 KiB
Go
package vm
|
|
|
|
import (
|
|
"math/big"
|
|
"testing"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/params"
|
|
)
|
|
|
|
func TestByteOp(t *testing.T) {
|
|
|
|
var (
|
|
env = NewEVM(Context{}, nil, params.TestChainConfig, Config{EnableJit: false, ForceJit: false})
|
|
stack = newstack()
|
|
)
|
|
tests := []struct {
|
|
v string
|
|
th uint64
|
|
expected *big.Int
|
|
}{
|
|
{"ABCDEF0908070605040302010000000000000000000000000000000000000000", 0, big.NewInt(0xAB)},
|
|
{"ABCDEF0908070605040302010000000000000000000000000000000000000000", 1, big.NewInt(0xCD)},
|
|
{"00CDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff", 0, big.NewInt(0x00)},
|
|
{"00CDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff", 1, big.NewInt(0xCD)},
|
|
{"0000000000000000000000000000000000000000000000000000000000102030", 31, big.NewInt(0x30)},
|
|
{"0000000000000000000000000000000000000000000000000000000000102030", 30, big.NewInt(0x20)},
|
|
{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 32, big.NewInt(0x0)},
|
|
{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 0xFFFFFFFFFFFFFFFF, big.NewInt(0x0)},
|
|
}
|
|
pc := uint64(0)
|
|
for _, test := range tests {
|
|
val := new(big.Int).SetBytes(common.Hex2Bytes(test.v))
|
|
th := new(big.Int).SetUint64(test.th)
|
|
stack.push(val)
|
|
stack.push(th)
|
|
opByte(&pc, env, nil, nil, stack)
|
|
actual := stack.pop()
|
|
if actual.Cmp(test.expected) != 0 {
|
|
t.Fatalf("Expected [%v] %v:th byte to be %v, was %v.", test.v, test.th, test.expected, actual)
|
|
}
|
|
}
|
|
}
|