neoneo-go/cli/executor_test.go

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package main
import (
"bytes"
"errors"
"io"
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"io/ioutil"
"math"
"strings"
"sync"
"testing"
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"time"
"github.com/nspcc-dev/neo-go/cli/input"
"github.com/nspcc-dev/neo-go/pkg/config"
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"github.com/nspcc-dev/neo-go/pkg/consensus"
"github.com/nspcc-dev/neo-go/pkg/core"
"github.com/nspcc-dev/neo-go/pkg/core/storage"
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"github.com/nspcc-dev/neo-go/pkg/core/transaction"
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"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/encoding/address"
"github.com/nspcc-dev/neo-go/pkg/network"
"github.com/nspcc-dev/neo-go/pkg/rpc/server"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
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"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm"
"github.com/stretchr/testify/require"
"github.com/urfave/cli"
"go.uber.org/zap"
"go.uber.org/zap/zaptest"
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"golang.org/x/term"
)
const (
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validatorWIF = "KxyjQ8eUa4FHt3Gvioyt1Wz29cTUrE4eTqX3yFSk1YFCsPL8uNsY"
validatorAddr = "NfgHwwTi3wHAS8aFAN243C5vGbkYDpqLHP"
multisigAddr = "NVTiAjNgagDkTr5HTzDmQP9kPwPHN5BgVq"
testWalletPath = "testdata/testwallet.json"
testWalletAccount = "Nfyz4KcsgYepRJw1W5C2uKCi6QWKf7v6gG"
validatorWallet = "testdata/wallet1_solo.json"
)
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var (
validatorHash, _ = address.StringToUint160(validatorAddr)
validatorPriv, _ = keys.NewPrivateKeyFromWIF(validatorWIF)
)
// executor represents context for a test instance.
// It can be safely used in multiple tests, but not in parallel.
type executor struct {
// CLI is a cli application to test.
CLI *cli.App
// Chain is a blockchain instance (can be empty).
Chain *core.Blockchain
// RPC is an RPC server to query (can be empty).
RPC *server.Server
// NetSrv is a network server (can be empty).
NetSrv *network.Server
// Out contains command output.
Out *ConcurrentBuffer
// Err contains command errors.
Err *bytes.Buffer
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// In contains command input.
In *bytes.Buffer
}
// ConcurrentBuffer is a wrapper over Buffer with mutex.
type ConcurrentBuffer struct {
lock sync.RWMutex
buf *bytes.Buffer
}
// NewConcurrentBuffer returns new ConcurrentBuffer with underlying buffer initialized.
func NewConcurrentBuffer() *ConcurrentBuffer {
return &ConcurrentBuffer{
buf: bytes.NewBuffer(nil),
}
}
// Write is a concurrent wrapper over the corresponding method of bytes.Buffer.
func (w *ConcurrentBuffer) Write(p []byte) (int, error) {
w.lock.Lock()
defer w.lock.Unlock()
return w.buf.Write(p)
}
// ReadString is a concurrent wrapper over the corresponding method of bytes.Buffer.
func (w *ConcurrentBuffer) ReadString(delim byte) (string, error) {
w.lock.RLock()
defer w.lock.RUnlock()
return w.buf.ReadString(delim)
}
// Bytes is a concurrent wrapper over the corresponding method of bytes.Buffer.
func (w *ConcurrentBuffer) Bytes() []byte {
w.lock.RLock()
defer w.lock.RUnlock()
return w.buf.Bytes()
}
// String is a concurrent wrapper over the corresponding method of bytes.Buffer.
func (w *ConcurrentBuffer) String() string {
w.lock.RLock()
defer w.lock.RUnlock()
return w.buf.String()
}
// Reset is a concurrent wrapper over the corresponding method of bytes.Buffer.
func (w *ConcurrentBuffer) Reset() {
w.lock.Lock()
defer w.lock.Unlock()
w.buf.Reset()
}
func newTestChain(t *testing.T, f func(*config.Config), run bool) (*core.Blockchain, *server.Server, *network.Server) {
configPath := "../config/protocol.unit_testnet.single.yml"
cfg, err := config.LoadFile(configPath)
require.NoError(t, err, "could not load config")
if f != nil {
f(&cfg)
}
memoryStore := storage.NewMemoryStore()
logger := zaptest.NewLogger(t)
chain, err := core.NewBlockchain(memoryStore, cfg.ProtocolConfiguration, logger)
require.NoError(t, err, "could not create chain")
if run {
go chain.Run()
}
serverConfig := network.NewServerConfig(cfg)
netSrv, err := network.NewServer(serverConfig, chain, chain.GetStateSyncModule(), zap.NewNop())
require.NoError(t, err)
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cons, err := consensus.NewService(consensus.Config{
Logger: zap.NewNop(),
Broadcast: netSrv.BroadcastExtensible,
Chain: chain,
ProtocolConfiguration: chain.GetConfig(),
RequestTx: netSrv.RequestTx,
Wallet: serverConfig.Wallet,
TimePerBlock: serverConfig.TimePerBlock,
})
require.NoError(t, err)
netSrv.AddExtensibleHPService(cons, consensus.Category, cons.OnPayload, cons.OnTransaction)
go netSrv.Start(make(chan error, 1))
rpcServer := server.New(chain, cfg.ApplicationConfiguration.RPC, netSrv, nil, logger)
errCh := make(chan error, 2)
rpcServer.Start(errCh)
return chain, &rpcServer, netSrv
}
func newExecutor(t *testing.T, needChain bool) *executor {
return newExecutorWithConfig(t, needChain, true, nil)
}
func newExecutorSuspended(t *testing.T) *executor {
return newExecutorWithConfig(t, true, false, nil)
}
func newExecutorWithConfig(t *testing.T, needChain, runChain bool, f func(*config.Config)) *executor {
e := &executor{
CLI: newApp(),
Out: NewConcurrentBuffer(),
Err: bytes.NewBuffer(nil),
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In: bytes.NewBuffer(nil),
}
e.CLI.Writer = e.Out
e.CLI.ErrWriter = e.Err
if needChain {
e.Chain, e.RPC, e.NetSrv = newTestChain(t, f, runChain)
}
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t.Cleanup(func() {
e.Close(t)
})
return e
}
func (e *executor) Close(t *testing.T) {
input.Terminal = nil
if e.RPC != nil {
require.NoError(t, e.RPC.Shutdown())
}
if e.NetSrv != nil {
e.NetSrv.Shutdown()
}
if e.Chain != nil {
e.Chain.Close()
}
}
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// GetTransaction returns tx with hash h after it has persisted.
// If it is in mempool, we can just wait for the next block, otherwise
// it must be already in chain. 1 second is time per block in a unittest chain.
func (e *executor) GetTransaction(t *testing.T, h util.Uint256) (*transaction.Transaction, uint32) {
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var tx *transaction.Transaction
var height uint32
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require.Eventually(t, func() bool {
var err error
tx, height, err = e.Chain.GetTransaction(h)
return err == nil && height != math.MaxUint32
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}, time.Second*2, time.Millisecond*100, "too long time waiting for block")
return tx, height
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}
func (e *executor) getNextLine(t *testing.T) string {
line, err := e.Out.ReadString('\n')
require.NoError(t, err)
return strings.TrimSuffix(line, "\n")
}
func (e *executor) checkNextLine(t *testing.T, expected string) {
line := e.getNextLine(t)
e.checkLine(t, line, expected)
}
func (e *executor) checkLine(t *testing.T, line, expected string) {
require.Regexp(t, expected, line)
}
func (e *executor) checkEOF(t *testing.T) {
_, err := e.Out.ReadString('\n')
require.True(t, errors.Is(err, io.EOF))
}
func setExitFunc() <-chan int {
ch := make(chan int, 1)
cli.OsExiter = func(code int) {
ch <- code
}
return ch
}
func checkExit(t *testing.T, ch <-chan int, code int) {
select {
case c := <-ch:
require.Equal(t, code, c)
default:
if code != 0 {
require.Fail(t, "no exit was called")
}
}
}
// RunWithError runs command and checks that is exits with error.
func (e *executor) RunWithError(t *testing.T, args ...string) {
ch := setExitFunc()
require.Error(t, e.run(args...))
checkExit(t, ch, 1)
}
// Run runs command and checks that there were no errors.
func (e *executor) Run(t *testing.T, args ...string) {
ch := setExitFunc()
require.NoError(t, e.run(args...))
checkExit(t, ch, 0)
}
func (e *executor) run(args ...string) error {
e.Out.Reset()
e.Err.Reset()
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input.Terminal = term.NewTerminal(input.ReadWriter{
Reader: e.In,
Writer: ioutil.Discard,
}, "")
err := e.CLI.Run(args)
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input.Terminal = nil
e.In.Reset()
return err
}
func (e *executor) checkTxPersisted(t *testing.T, prefix ...string) (*transaction.Transaction, uint32) {
line, err := e.Out.ReadString('\n')
require.NoError(t, err)
line = strings.TrimSpace(line)
if len(prefix) > 0 {
line = strings.TrimPrefix(line, prefix[0])
}
h, err := util.Uint256DecodeStringLE(line)
require.NoError(t, err, "can't decode tx hash: %s", line)
tx, height := e.GetTransaction(t, h)
aer, err := e.Chain.GetAppExecResults(tx.Hash(), trigger.Application)
require.NoError(t, err)
require.Equal(t, 1, len(aer))
require.Equal(t, vm.HaltState, aer[0].VMState)
return tx, height
}
func generateKeys(t *testing.T, n int) ([]*keys.PrivateKey, keys.PublicKeys) {
privs := make([]*keys.PrivateKey, n)
pubs := make(keys.PublicKeys, n)
for i := range privs {
var err error
privs[i], err = keys.NewPrivateKey()
require.NoError(t, err)
pubs[i] = privs[i].PublicKey()
}
return privs, pubs
}