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core/vm/runtime: simplified runtime calling mechanism

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Implemented `runtime.Call` which uses - unlike Execute - the given state
for the execution and the address of the contract you wish to execute.
Unlike `Execute`, `Call` requires a config.
This commit is contained in:
Jeffrey Wilcke
2016-02-09 23:20:42 +01:00
parent ecc876cec0
commit 6cace73bea
3 changed files with 117 additions and 18 deletions
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46
core/vm/runtime/runtime_test.go
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@ -17,12 +17,15 @@
package runtime
import (
"math/big"
"strings"
"testing"
"github.com/ethereum/go-ethereum/accounts/abi"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/ethdb"
)
func TestDefaults(t *testing.T) {
@ -71,6 +74,49 @@ func TestEnvironment(t *testing.T) {
}, nil, nil)
}
func TestExecute(t *testing.T) {
ret, _, err := Execute([]byte{
byte(vm.PUSH1), 10,
byte(vm.PUSH1), 0,
byte(vm.MSTORE),
byte(vm.PUSH1), 32,
byte(vm.PUSH1), 0,
byte(vm.RETURN),
}, nil, nil)
if err != nil {
t.Fatal("didn't expect error", err)
}
num := common.BytesToBig(ret)
if num.Cmp(big.NewInt(10)) != 0 {
t.Error("Expected 10, got", num)
}
}
func TestCall(t *testing.T) {
db, _ := ethdb.NewMemDatabase()
state, _ := state.New(common.Hash{}, db)
address := common.HexToAddress("0x0a")
state.SetCode(address, []byte{
byte(vm.PUSH1), 10,
byte(vm.PUSH1), 0,
byte(vm.MSTORE),
byte(vm.PUSH1), 32,
byte(vm.PUSH1), 0,
byte(vm.RETURN),
})
ret, err := Call(address, nil, &Config{State: state})
if err != nil {
t.Fatal("didn't expect error", err)
}
num := common.BytesToBig(ret)
if num.Cmp(big.NewInt(10)) != 0 {
t.Error("Expected 10, got", num)
}
}
func TestRestoreDefaults(t *testing.T) {
Execute(nil, nil, &Config{Debug: true})
if vm.ForceJit {