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integration.go
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integration.go
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// Copyright 2017 Monax Industries Limited
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package integration
import (
"context"
"fmt"
"io/ioutil"
"os"
"path"
"strconv"
"sync/atomic"
"testing"
"time"
"github.com/stretchr/testify/require"
"github.com/hyperledger/burrow/acm"
"github.com/hyperledger/burrow/acm/validator"
"github.com/hyperledger/burrow/config"
"github.com/hyperledger/burrow/consensus/tendermint"
"github.com/hyperledger/burrow/core"
"github.com/hyperledger/burrow/execution"
"github.com/hyperledger/burrow/genesis"
"github.com/hyperledger/burrow/keys/mock"
"github.com/hyperledger/burrow/logging"
"github.com/hyperledger/burrow/logging/logconfig"
lConfig "github.com/hyperledger/burrow/logging/logconfig"
"github.com/hyperledger/burrow/permission"
)
const (
ChainName = "Integration_Test_Chain"
scratchDir = "test_scratch"
)
// Enable logger output during tests
var node uint64 = 0
func NoConsensus(conf *config.BurrowConfig) {
conf.Tendermint.Enabled = false
}
func CommitImmediately(conf *config.BurrowConfig) {
conf.Execution.TimeoutFactor = 0
}
func RunNode(t testing.TB, genesisDoc *genesis.GenesisDoc, privateAccounts []*acm.PrivateAccount,
options ...func(*config.BurrowConfig)) (kern *core.Kernel, shutdown func()) {
var err error
var loggingConfig *logconfig.LoggingConfig
testConfig, cleanup := NewTestConfig(genesisDoc, options...)
// Uncomment for log output from tests
//loggingConfig = logconfig.New().Root(func(sink *logconfig.SinkConfig) *logconfig.SinkConfig {
// return sink.SetOutput(logconfig.StderrOutput())
//})
kern, err = TestKernel(privateAccounts[0], privateAccounts, testConfig, loggingConfig)
require.NoError(t, err)
err = kern.Boot()
require.NoError(t, err)
// Sometimes better to not shutdown as logging errors on shutdown may obscure real issue
return kern, func() {
Shutdown(kern)
cleanup()
}
}
func NewTestConfig(genesisDoc *genesis.GenesisDoc,
options ...func(*config.BurrowConfig)) (conf *config.BurrowConfig, cleanup func()) {
nodeNumber := atomic.AddUint64(&node, 1)
name := fmt.Sprintf("node_%03d", nodeNumber)
conf = config.DefaultBurrowConfig()
testDir, cleanup := EnterTestDirectory()
conf.BurrowDir = path.Join(testDir, fmt.Sprintf(".burrow_%s", name))
conf.GenesisDoc = genesisDoc
conf.Tendermint.Moniker = name
conf.Keys.RemoteAddress = ""
// Assign run of ports
const localhostFreePort = "tcp://localhost:0"
conf.Tendermint.ListenAddress = localhostFreePort
conf.RPC.GRPC.ListenAddress = localhostFreePort
conf.RPC.Metrics.ListenAddress = localhostFreePort
conf.RPC.Info.ListenAddress = localhostFreePort
conf.Execution.TimeoutFactor = 0.5
conf.Execution.VMOptions = []execution.VMOption{execution.DebugOpcodes}
for _, opt := range options {
if opt != nil {
opt(conf)
}
}
return conf, cleanup
}
// We use this to wrap tests
func TestKernel(validatorAccount *acm.PrivateAccount, keysAccounts []*acm.PrivateAccount,
testConfig *config.BurrowConfig, loggingConfig *lConfig.LoggingConfig) (*core.Kernel, error) {
fmt.Println("Creating integration test Kernel...")
kern, err := core.NewKernel(testConfig.BurrowDir)
if err != nil {
return nil, err
}
kern.SetLogger(logging.NewNoopLogger())
if loggingConfig != nil {
err := kern.LoadLoggerFromConfig(loggingConfig)
if err != nil {
return nil, err
}
}
kern.SetKeyClient(mock.NewKeyClient(keysAccounts...))
err = kern.LoadExecutionOptionsFromConfig(testConfig.Execution)
if err != nil {
return nil, err
}
err = kern.LoadState(testConfig.GenesisDoc)
if err != nil {
return nil, err
}
privVal := tendermint.NewPrivValidatorMemory(validatorAccount, validatorAccount)
err = kern.LoadTendermintFromConfig(testConfig, privVal)
if err != nil {
return nil, err
}
kern.AddProcesses(core.DefaultProcessLaunchers(kern, testConfig.RPC, testConfig.Keys)...)
return kern, nil
}
func EnterTestDirectory() (testDir string, cleanup func()) {
var err error
testDir, err = ioutil.TempDir("", scratchDir)
if err != nil {
panic(fmt.Errorf("could not make temp dir for integration tests: %v", err))
}
// If you need to inspectdirs
//testDir := scratchDir
os.RemoveAll(testDir)
os.MkdirAll(testDir, 0777)
os.Chdir(testDir)
os.MkdirAll("config", 0777)
return testDir, func() { os.RemoveAll(testDir) }
}
func TestGenesisDoc(addressables []*acm.PrivateAccount) *genesis.GenesisDoc {
accounts := make(map[string]*acm.Account, len(addressables))
for i, pa := range addressables {
account := acm.FromAddressable(pa)
account.Balance += 1 << 32
account.Permissions = permission.AllAccountPermissions.Clone()
accounts[fmt.Sprintf("user_%v", i)] = account
}
genesisTime, err := time.Parse("02-01-2006", "27-10-2017")
if err != nil {
panic("could not parse test genesis time")
}
return genesis.MakeGenesisDocFromAccounts(ChainName, nil, genesisTime, accounts,
map[string]*validator.Validator{
"genesis_validator": validator.FromAccount(accounts["user_0"], 1<<16),
})
}
// Deterministic account generation helper. Pass number of accounts to make
func MakePrivateAccounts(n int) []*acm.PrivateAccount {
accounts := make([]*acm.PrivateAccount, n)
for i := 0; i < n; i++ {
accounts[i] = acm.GeneratePrivateAccountFromSecret("mysecret" + strconv.Itoa(i))
}
return accounts
}
func Shutdown(kern *core.Kernel) {
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
err := kern.Shutdown(ctx)
if err != nil {
fmt.Fprintf(os.Stderr, "Error shutting down test kernel %v: %v", kern, err)
}
}