forked from bryanicer/fabric-sdk-go-gm
/
mockdiscoveryclient.go
204 lines (169 loc) · 5.02 KB
/
mockdiscoveryclient.go
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/*
Copyright SecureKey Technologies Inc. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package discovery
import (
"context"
"sync"
"github.com/hyperledger/fabric-protos-go/discovery"
"github.com/hyperledger/fabric-protos-go/gossip"
discclient "github.com/hyperledger/fabric-sdk-go/internal/github.com/hyperledger/fabric/discovery/client"
gprotoext "github.com/hyperledger/fabric-sdk-go/internal/github.com/hyperledger/fabric/gossip/protoext"
"github.com/hyperledger/fabric-sdk-go/pkg/common/providers/fab"
"github.com/hyperledger/fabric-sdk-go/pkg/fab/discovery/mocks"
"github.com/pkg/errors"
)
// MockDiscoveryClient implements a mock Discover service
type MockDiscoveryClient struct {
resp []Response
lock sync.RWMutex
}
// MockResponseBuilder builds a mock discovery response
type MockResponseBuilder interface {
Build() Response
}
// NewMockDiscoveryClient returns a new mock Discover service
func NewMockDiscoveryClient() *MockDiscoveryClient {
return &MockDiscoveryClient{}
}
// Send sends a Discovery request
func (m *MockDiscoveryClient) Send(ctx context.Context, req *Request, targets ...fab.PeerConfig) (<-chan Response, error) {
respCh := make(chan Response, len(targets))
for _, r := range m.responses() {
respCh <- r
}
close(respCh)
return respCh, nil
}
// SetResponses sets the responses that the mock client should return from the Send function
func (m *MockDiscoveryClient) SetResponses(responses ...MockResponseBuilder) {
m.lock.Lock()
defer m.lock.Unlock()
m.resp = nil
for _, resp := range responses {
m.resp = append(m.resp, resp.Build())
}
}
func (m *MockDiscoveryClient) responses() []Response {
m.lock.RLock()
defer m.lock.RUnlock()
return m.resp
}
type mockDiscoverResponse struct {
discclient.Response
target string
err error
}
func (r *mockDiscoverResponse) Target() string {
return r.target
}
func (r *mockDiscoverResponse) Error() error {
return r.err
}
type fakeResponse struct {
peers []*discclient.Peer
err error
endorsersErr error
}
func (r *fakeResponse) ForChannel(string) discclient.ChannelResponse {
return &channelResponse{
peers: r.peers,
err: r.err,
endorsersErr: r.endorsersErr,
}
}
func (r *fakeResponse) ForLocal() discclient.LocalResponse {
return &localResponse{
peers: r.peers,
err: r.err,
}
}
type channelResponse struct {
peers discclient.Endorsers
err error
endorsersErr error
}
// Config returns a response for a config query, or error if something went wrong
func (cr *channelResponse) Config() (*discovery.ConfigResult, error) {
panic("not implemented")
}
// Peers returns a response for a peer membership query, or error if something went wrong
func (cr *channelResponse) Peers(invocationChain ...*discovery.ChaincodeCall) ([]*discclient.Peer, error) {
return cr.peers, cr.err
}
// Endorsers returns the response for an endorser query
func (cr *channelResponse) Endorsers(invocationChain discclient.InvocationChain, f discclient.Filter) (discclient.Endorsers, error) {
if cr.endorsersErr != nil {
return nil, cr.endorsersErr
}
for _, call := range invocationChain {
if call.Name == "notInstalledToAnyPeer" {
return nil, errors.New("no endorsement combination can be satisfied")
}
}
return f.Filter(cr.peers), nil
}
type localResponse struct {
peers []*discclient.Peer
err error
}
// Peers returns a response for a peer membership query, or error if something went wrong
func (cr *localResponse) Peers() ([]*discclient.Peer, error) {
return cr.peers, cr.err
}
// MockDiscoverEndpointResponse contains a mock response for the discover client
type MockDiscoverEndpointResponse struct {
Target string
PeerEndpoints []*mocks.MockDiscoveryPeerEndpoint
Error error
EndorsersErr error
}
// Build builds a mock discovery response
func (b *MockDiscoverEndpointResponse) Build() Response {
var peers discclient.Endorsers
for _, endpoint := range b.PeerEndpoints {
peer := &discclient.Peer{
MSPID: endpoint.MSPID,
AliveMessage: newAliveMessage(endpoint),
StateInfoMessage: newStateInfoMessage(endpoint),
}
peers = append(peers, peer)
}
disResp := &fakeResponse{
peers: peers,
err: b.Error,
endorsersErr: b.EndorsersErr,
}
return &mockDiscoverResponse{
Response: disResp,
target: b.Target,
err: b.Error,
}
}
func newAliveMessage(endpoint *mocks.MockDiscoveryPeerEndpoint) *gprotoext.SignedGossipMessage {
return &gprotoext.SignedGossipMessage{
GossipMessage: &gossip.GossipMessage{
Content: &gossip.GossipMessage_AliveMsg{
AliveMsg: &gossip.AliveMessage{
Membership: &gossip.Member{
Endpoint: endpoint.Endpoint,
},
},
},
},
}
}
func newStateInfoMessage(endpoint *mocks.MockDiscoveryPeerEndpoint) *gprotoext.SignedGossipMessage {
return &gprotoext.SignedGossipMessage{
GossipMessage: &gossip.GossipMessage{
Content: &gossip.GossipMessage_StateInfo{
StateInfo: &gossip.StateInfo{
Properties: &gossip.Properties{
LedgerHeight: endpoint.LedgerHeight,
},
},
},
},
}
}