cmd/evm: add blocktest subcommand to evm (#26526)

Adds blocktest subcommand to the evm command, which is very similar to statetest, but instead of loading a StateTest static test it loads a BlockchainTest from a json file and runs it.
Co-authored-by: Martin Holst Swende <martin@swende.se>
Co-authored-by: lightclient <14004106+lightclient@users.noreply.github.com>

cmd/evm/blockrunner.go

+// Copyright 2023 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+
+package main
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"os"
+
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/tests"
+	"github.com/urfave/cli/v2"
+)
+
+var blockTestCommand = &cli.Command{
+	Action:    blockTestCmd,
+	Name:      "blocktest",
+	Usage:     "executes the given blockchain tests",
+	ArgsUsage: "<file>",
+}
+
+func blockTestCmd(ctx *cli.Context) error {
+	if len(ctx.Args().First()) == 0 {
+		return errors.New("path-to-test argument required")
+	}
+	// Configure the go-ethereum logger
+	glogger := log.NewGlogHandler(log.StreamHandler(os.Stderr, log.TerminalFormat(false)))
+	glogger.Verbosity(log.Lvl(ctx.Int(VerbosityFlag.Name)))
+	log.Root().SetHandler(glogger)
+
+	// Load the test content from the input file
+	src, err := os.ReadFile(ctx.Args().First())
+	if err != nil {
+		return err
+	}
+	var tests map[string]tests.BlockTest
+	if err = json.Unmarshal(src, &tests); err != nil {
+		return err
+	}
+	for i, test := range tests {
+		if err := test.Run(false); err != nil {
+			return fmt.Errorf("test %v: %w", i, err)
+		}
+	}
+	return nil
+}

cmd/evm/main.go

@@ -218,6 +218,7 @@ func init() {
 		compileCommand,
 		disasmCommand,
 		runCommand,
+		blockTestCommand,
 		stateTestCommand,
 		stateTransitionCommand,
 		transactionCommand,