cmd/evm: output stateroot in statetest result (#26297)

This adds stateRoot as a field in the JSON output.

cmd/evm/staterunner.go

@@ -22,12 +22,12 @@ import (
 	"fmt"
 	"os"
 
+	"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/eth/tracers/logger"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/tests"
-
 	"github.com/urfave/cli/v2"
 )
 
@@ -43,6 +43,7 @@ var stateTestCommand = &cli.Command{
 type StatetestResult struct {
 	Name  string       `json:"name"`
 	Pass  bool         `json:"pass"`
+	Root  *common.Hash `json:"stateRoot,omitempty"`
 	Fork  string       `json:"fork"`
 	Error string       `json:"error,omitempty"`
 	State *state.Dump  `json:"state,omitempty"`
@@ -100,8 +101,12 @@ func stateTestCmd(ctx *cli.Context) error {
 			result := &StatetestResult{Name: key, Fork: st.Fork, Pass: true}
 			_, s, err := test.Run(st, cfg, false)
 			// print state root for evmlab tracing
-			if ctx.Bool(MachineFlag.Name) && s != nil {
+			if s != nil {
-				fmt.Fprintf(os.Stderr, "{\"stateRoot\": \"%x\"}\n", s.IntermediateRoot(false))
+				root := s.IntermediateRoot(false)
+				result.Root = &root
+				if ctx.Bool(MachineFlag.Name) {
+					fmt.Fprintf(os.Stderr, "{\"stateRoot\": \"%#x\"}\n", root)
+				}
 			}
 			if err != nil {
 				// Test failed, mark as so and dump any state to aid debugging