136 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			136 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright 2015 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// go-ethereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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package main
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import (
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	"fmt"
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	"os"
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	"github.com/codegangsta/cli"
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	"github.com/ethereum/go-ethereum/cmd/utils"
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	"github.com/ethereum/go-ethereum/eth"
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	"github.com/ethereum/go-ethereum/ethdb"
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	"github.com/ethereum/go-ethereum/tests"
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)
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var blocktestCommand = cli.Command{
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	Action: runBlockTest,
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	Name:   "blocktest",
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	Usage:  `loads a block test file`,
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	Description: `
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The first argument should be a block test file.
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The second argument is the name of a block test from the file.
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The block test will be loaded into an in-memory database.
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If loading succeeds, the RPC server is started. Clients will
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be able to interact with the chain defined by the test.
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`,
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}
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func runBlockTest(ctx *cli.Context) {
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	var (
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		file, testname string
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		rpc            bool
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	)
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	args := ctx.Args()
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	switch {
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	case len(args) == 1:
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		file = args[0]
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	case len(args) == 2:
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		file, testname = args[0], args[1]
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	case len(args) == 3:
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		file, testname = args[0], args[1]
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		rpc = true
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	default:
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		utils.Fatalf(`Usage: ethereum blocktest <path-to-test-file> [ <test-name> [ "rpc" ] ]`)
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	}
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	bt, err := tests.LoadBlockTests(file)
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	if err != nil {
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		utils.Fatalf("%v", err)
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	}
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	// run all tests if no test name is specified
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	if testname == "" {
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		ecode := 0
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		for name, test := range bt {
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			fmt.Printf("----------------- Running Block Test %q\n", name)
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			ethereum, err := runOneBlockTest(ctx, test)
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			if err != nil {
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				fmt.Println(err)
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				fmt.Println("FAIL")
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				ecode = 1
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			}
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			if ethereum != nil {
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				ethereum.Stop()
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				ethereum.WaitForShutdown()
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			}
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		}
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		os.Exit(ecode)
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		return
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	}
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	// otherwise, run the given test
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	test, ok := bt[testname]
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	if !ok {
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		utils.Fatalf("Test file does not contain test named %q", testname)
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	}
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	ethereum, err := runOneBlockTest(ctx, test)
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	if err != nil {
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		utils.Fatalf("%v", err)
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	}
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	if rpc {
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		fmt.Println("Block Test post state validated, starting RPC interface.")
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		startEth(ctx, ethereum)
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		utils.StartRPC(ethereum, ctx)
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		ethereum.WaitForShutdown()
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	}
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}
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func runOneBlockTest(ctx *cli.Context, test *tests.BlockTest) (*eth.Ethereum, error) {
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	cfg := utils.MakeEthConfig(ClientIdentifier, Version, ctx)
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	db, _ := ethdb.NewMemDatabase()
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	cfg.NewDB = func(path string) (ethdb.Database, error) { return db, nil }
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	cfg.MaxPeers = 0 // disable network
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	cfg.Shh = false  // disable whisper
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	cfg.NAT = nil    // disable port mapping
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	ethereum, err := eth.New(cfg)
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	if err != nil {
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		return nil, err
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	}
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	// import the genesis block
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	ethereum.ResetWithGenesisBlock(test.Genesis)
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	// import pre accounts
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	_, err = test.InsertPreState(db, cfg.AccountManager)
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	if err != nil {
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		return ethereum, fmt.Errorf("InsertPreState: %v", err)
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	}
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	cm := ethereum.BlockChain()
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	validBlocks, err := test.TryBlocksInsert(cm)
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	if err != nil {
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		return ethereum, fmt.Errorf("Block Test load error: %v", err)
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	}
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	newDB, err := cm.State()
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	if err != nil {
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		return ethereum, fmt.Errorf("Block Test get state error: %v", err)
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	}
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	if err := test.ValidatePostState(newDB); err != nil {
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		return ethereum, fmt.Errorf("post state validation failed: %v", err)
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	}
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	return ethereum, test.ValidateImportedHeaders(cm, validBlocks)
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}
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