fixed ethtest

tests/vm/gh_test.go

@@ -11,6 +11,7 @@ import (
 	"github.com/ethereum/go-ethereum/logger"
 	"github.com/ethereum/go-ethereum/state"
 	"github.com/ethereum/go-ethereum/tests/helper"
+	"github.com/ethereum/go-ethereum/vm"
 )
 
 type Account struct {
@@ -80,6 +81,11 @@ func RunVmTest(p string, t *testing.T) {
 	helper.CreateFileTests(t, p, &tests)
 
 	for name, test := range tests {
+		vm.Debug = true
+		helper.Logger.SetLogLevel(4)
+		if name != "signextend_Overflow_dj42" {
+			continue
+		}
 		db, _ := ethdb.NewMemDatabase()
 		statedb := state.New(nil, db)
 		for addr, account := range test.Pre {