github.com/myafeier/fabric@v1.0.1-0.20170722181825-3a4b1f2bce86/orderer/common/msgprocessor/configupdate/configupdate_test.go

/*
Copyright IBM Corp. 2017 All Rights Reserved.

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 configupdate

import (
	"fmt"
	"testing"

	"github.com/hyperledger/fabric/common/configtx"
	configtxapi "github.com/hyperledger/fabric/common/configtx/api"
	mockconfigtx "github.com/hyperledger/fabric/common/mocks/configtx"
	mockcrypto "github.com/hyperledger/fabric/common/mocks/crypto"
	cb "github.com/hyperledger/fabric/protos/common"
	"github.com/hyperledger/fabric/protos/utils"

	"github.com/op/go-logging"
	"github.com/stretchr/testify/assert"
)

func init() {
	logging.SetLevel(logging.DEBUG, "")
}

type mockSupport struct {
	ProposeConfigUpdateVal *cb.ConfigEnvelope
}

func (ms *mockSupport) ProposeConfigUpdate(env *cb.Envelope) (*cb.ConfigEnvelope, error) {
	var err error
	if ms.ProposeConfigUpdateVal == nil {
		err = fmt.Errorf("Nil result implies error in mock")
	}
	return ms.ProposeConfigUpdateVal, err
}

type mockSupportManager struct {
	GetChainVal           *mockSupport
	Manager               *mockconfigtx.Manager
	NewChannelConfigError error
}

func (msm *mockSupportManager) GetChain(chainID string) (Support, bool) {
	return msm.GetChainVal, msm.GetChainVal != nil
}

func (msm *mockSupportManager) NewChannelConfig(env *cb.Envelope) (configtxapi.Manager, error) {
	msm.Manager.ProposeConfigUpdateVal = &cb.ConfigEnvelope{LastUpdate: env}
	return msm.Manager, msm.NewChannelConfigError
}

func TestChannelID(t *testing.T) {
	const testChannelID = "foo"
	makeEnvelope := func(payload *cb.Payload) *cb.Envelope {
		return &cb.Envelope{
			Payload: utils.MarshalOrPanic(payload),
		}
	}

	_, err := channelID(&cb.Envelope{Payload: []byte("foo")})
	assert.Error(t, err, "Payload was missing")

	_, err = channelID(makeEnvelope(&cb.Payload{}))
	assert.Error(t, err, "Header was missing")

	_, err = channelID(makeEnvelope(&cb.Payload{
		Header: &cb.Header{ChannelHeader: []byte("bar")},
	}))
	assert.Error(t, err, "ChannelHeader was malformed")

	_, err = channelID(makeEnvelope(&cb.Payload{
		Header: &cb.Header{
			ChannelHeader: utils.MarshalOrPanic(&cb.ChannelHeader{}),
		},
	}))
	assert.Error(t, err, "Channel ID was empty")

	result, err := channelID(makeEnvelope(&cb.Payload{
		Header: &cb.Header{
			ChannelHeader: utils.MarshalOrPanic(&cb.ChannelHeader{
				ChannelId: testChannelID,
			}),
		},
	}))
	assert.NoError(t, err, "Channel ID was present")
	assert.Equal(t, testChannelID, result, "Channel ID was present")
}

const systemChannelID = "system_channel"
const testUpdateChannelID = "update_channel"

func newTestInstance() (*mockSupportManager, *Processor) {
	msm := &mockSupportManager{}
	msm.GetChainVal = &mockSupport{}
	msm.Manager = &mockconfigtx.Manager{}
	return msm, New(systemChannelID, msm, mockcrypto.FakeLocalSigner)
}

func testConfigUpdate() *cb.Envelope {
	ch := &cb.ChannelHeader{
		ChannelId: testUpdateChannelID,
	}

	return &cb.Envelope{
		Payload: utils.MarshalOrPanic(&cb.Payload{
			Header: &cb.Header{
				ChannelHeader: utils.MarshalOrPanic(ch),
			},
			Data: utils.MarshalOrPanic(&cb.ConfigUpdateEnvelope{
				ConfigUpdate: utils.MarshalOrPanic(&cb.ConfigUpdate{
					ChannelId: ch.ChannelId,
					WriteSet:  cb.NewConfigGroup(),
				}),
			}),
		}),
	}
}

type mockErroneousLocalSigner struct {
	SignError error
}

func (m *mockErroneousLocalSigner) NewSignatureHeader() (*cb.SignatureHeader, error) {
	return nil, m.SignError
}

func (m *mockErroneousLocalSigner) Sign(message []byte) ([]byte, error) {
	return []byte{}, m.SignError
}

func TestExistingChannel(t *testing.T) {
	msm, p := newTestInstance()

	testUpdate := testConfigUpdate()

	dummyResult := &cb.ConfigEnvelope{LastUpdate: &cb.Envelope{Payload: []byte("DUMMY")}}

	msm.GetChainVal = &mockSupport{ProposeConfigUpdateVal: dummyResult}
	env, err := p.Process(testUpdate)
	assert.NoError(t, err, "Valid config update")
	_ = utils.UnmarshalPayloadOrPanic(env.Payload)
	assert.Equal(t, dummyResult, configtx.UnmarshalConfigEnvelopeOrPanic(utils.UnmarshalPayloadOrPanic(env.Payload).Data), "Valid config update")

	msm.GetChainVal = &mockSupport{}
	_, err = p.Process(testUpdate)
	assert.Error(t, err, "Invald ProposeUpdate result")
}

func TestNewChannel(t *testing.T) {
	msm, p := newTestInstance()
	msm.GetChainVal = nil

	testUpdate := testConfigUpdate()

	env, err := p.Process(testUpdate)
	assert.NoError(t, err, "Valid config update")

	resultChan, err := channelID(env)
	assert.NoError(t, err, "Invalid envelope produced")

	assert.Equal(t, systemChannelID, resultChan, "Wrapper TX should be bound for system channel")

	chdr, err := utils.UnmarshalChannelHeader(utils.UnmarshalPayloadOrPanic(env.Payload).Header.ChannelHeader)
	assert.NoError(t, err, "UnmarshalChannelHeader error")

	assert.Equal(t, int32(cb.HeaderType_ORDERER_TRANSACTION), chdr.Type, "Wrong wrapper tx type")
}

func TestNewChannelErrorCases(t *testing.T) {
	{
		_, p := newTestInstance()

		_, err := p.Process(&cb.Envelope{Payload: []byte("foo")})
		assert.Error(t, err, "Invalid env config update")
	}

	{
		msm, p := newTestInstance()
		testUpdate := testConfigUpdate()
		msm.GetChainVal = nil
		msm.NewChannelConfigError = fmt.Errorf("new channel config error")

		_, err := p.Process(testUpdate)
		assert.Error(t, err, "Expected channel config error to be returned")
	}

	{
		msm, p := newTestInstance()
		testUpdate := testConfigUpdate()
		msm.GetChainVal = nil
		msm.Manager.ProposeConfigUpdateError = fmt.Errorf("propose config update error")

		_, err := p.Process(testUpdate)
		assert.Error(t, err, "Expected propose config update error to be returned")
	}

	{
		msm := &mockSupportManager{}
		msm.GetChainVal = &mockSupport{}
		msm.Manager = &mockconfigtx.Manager{}
		p := New(
			systemChannelID,
			msm,
			&mockErroneousLocalSigner{SignError: fmt.Errorf("Sign error")})
		msm.GetChainVal = nil
		testUpdate := testConfigUpdate()

		_, err := p.Process(testUpdate)
		assert.Error(t, err, "Expected sign error to be returned")
	}

	{
		msm := &mockSupportManager{}
		assert.Panics(
			t,
			func() { New(systemChannelID, msm, mockcrypto.FakeLocalSigner) },
			"Should panic if SupportManager does not contain system channel",
		)
	}
}