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286 lines
8.3 KiB
286 lines
8.3 KiB
package statesync
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import (
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"context"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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abci "github.com/tendermint/tendermint/abci/types"
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"github.com/tendermint/tendermint/libs/log"
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"github.com/tendermint/tendermint/p2p"
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ssproto "github.com/tendermint/tendermint/proto/tendermint/statesync"
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proxymocks "github.com/tendermint/tendermint/proxy/mocks"
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"github.com/tendermint/tendermint/statesync/mocks"
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)
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type reactorTestSuite struct {
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reactor *Reactor
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syncer *syncer
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conn *proxymocks.AppConnSnapshot
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connQuery *proxymocks.AppConnQuery
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stateProvider *mocks.StateProvider
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snapshotChannel *p2p.Channel
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snapshotInCh chan p2p.Envelope
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snapshotOutCh chan p2p.Envelope
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snapshotPeerErrCh chan p2p.PeerError
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chunkChannel *p2p.Channel
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chunkInCh chan p2p.Envelope
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chunkOutCh chan p2p.Envelope
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chunkPeerErrCh chan p2p.PeerError
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peerUpdates *p2p.PeerUpdates
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}
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func setup(
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t *testing.T,
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conn *proxymocks.AppConnSnapshot,
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connQuery *proxymocks.AppConnQuery,
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stateProvider *mocks.StateProvider,
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chBuf uint,
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) *reactorTestSuite {
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t.Helper()
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if conn == nil {
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conn = &proxymocks.AppConnSnapshot{}
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}
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if connQuery == nil {
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connQuery = &proxymocks.AppConnQuery{}
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}
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if stateProvider == nil {
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stateProvider = &mocks.StateProvider{}
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}
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rts := &reactorTestSuite{
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snapshotInCh: make(chan p2p.Envelope, chBuf),
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snapshotOutCh: make(chan p2p.Envelope, chBuf),
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snapshotPeerErrCh: make(chan p2p.PeerError, chBuf),
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chunkInCh: make(chan p2p.Envelope, chBuf),
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chunkOutCh: make(chan p2p.Envelope, chBuf),
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chunkPeerErrCh: make(chan p2p.PeerError, chBuf),
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peerUpdates: p2p.NewPeerUpdates(make(chan p2p.PeerUpdate), int(chBuf)),
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conn: conn,
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connQuery: connQuery,
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stateProvider: stateProvider,
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}
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rts.snapshotChannel = p2p.NewChannel(
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SnapshotChannel,
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new(ssproto.Message),
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rts.snapshotInCh,
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rts.snapshotOutCh,
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rts.snapshotPeerErrCh,
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)
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rts.chunkChannel = p2p.NewChannel(
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ChunkChannel,
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new(ssproto.Message),
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rts.chunkInCh,
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rts.chunkOutCh,
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rts.chunkPeerErrCh,
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)
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rts.reactor = NewReactor(
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log.NewNopLogger(),
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conn,
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connQuery,
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rts.snapshotChannel,
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rts.chunkChannel,
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rts.peerUpdates,
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"",
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)
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rts.syncer = newSyncer(
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log.NewNopLogger(),
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conn,
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connQuery,
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stateProvider,
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rts.snapshotOutCh,
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rts.chunkOutCh,
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"",
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)
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require.NoError(t, rts.reactor.Start())
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require.True(t, rts.reactor.IsRunning())
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t.Cleanup(func() {
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require.NoError(t, rts.reactor.Stop())
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require.False(t, rts.reactor.IsRunning())
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})
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return rts
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}
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func TestReactor_ChunkRequest_InvalidRequest(t *testing.T) {
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rts := setup(t, nil, nil, nil, 2)
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rts.chunkInCh <- p2p.Envelope{
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From: p2p.NodeID("aa"),
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Message: &ssproto.SnapshotsRequest{},
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}
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response := <-rts.chunkPeerErrCh
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require.Error(t, response.Err)
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require.Empty(t, rts.chunkOutCh)
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require.Contains(t, response.Err.Error(), "received unknown message")
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require.Equal(t, p2p.NodeID("aa"), response.NodeID)
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}
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func TestReactor_ChunkRequest(t *testing.T) {
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testcases := map[string]struct {
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request *ssproto.ChunkRequest
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chunk []byte
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expectResponse *ssproto.ChunkResponse
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}{
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"chunk is returned": {
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&ssproto.ChunkRequest{Height: 1, Format: 1, Index: 1},
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[]byte{1, 2, 3},
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&ssproto.ChunkResponse{Height: 1, Format: 1, Index: 1, Chunk: []byte{1, 2, 3}},
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},
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"empty chunk is returned, as empty": {
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&ssproto.ChunkRequest{Height: 1, Format: 1, Index: 1},
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[]byte{},
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&ssproto.ChunkResponse{Height: 1, Format: 1, Index: 1, Chunk: []byte{}},
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},
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"nil (missing) chunk is returned as missing": {
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&ssproto.ChunkRequest{Height: 1, Format: 1, Index: 1},
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nil,
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&ssproto.ChunkResponse{Height: 1, Format: 1, Index: 1, Missing: true},
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},
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"invalid request": {
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&ssproto.ChunkRequest{Height: 1, Format: 1, Index: 1},
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nil,
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&ssproto.ChunkResponse{Height: 1, Format: 1, Index: 1, Missing: true},
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},
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}
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for name, tc := range testcases {
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tc := tc
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t.Run(name, func(t *testing.T) {
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// mock ABCI connection to return local snapshots
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conn := &proxymocks.AppConnSnapshot{}
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conn.On("LoadSnapshotChunkSync", context.Background(), abci.RequestLoadSnapshotChunk{
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Height: tc.request.Height,
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Format: tc.request.Format,
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Chunk: tc.request.Index,
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}).Return(&abci.ResponseLoadSnapshotChunk{Chunk: tc.chunk}, nil)
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rts := setup(t, conn, nil, nil, 2)
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rts.chunkInCh <- p2p.Envelope{
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From: p2p.NodeID("aa"),
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Message: tc.request,
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}
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response := <-rts.chunkOutCh
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require.Equal(t, tc.expectResponse, response.Message)
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require.Empty(t, rts.chunkOutCh)
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conn.AssertExpectations(t)
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})
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}
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}
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func TestReactor_SnapshotsRequest_InvalidRequest(t *testing.T) {
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rts := setup(t, nil, nil, nil, 2)
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rts.snapshotInCh <- p2p.Envelope{
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From: p2p.NodeID("aa"),
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Message: &ssproto.ChunkRequest{},
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}
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response := <-rts.snapshotPeerErrCh
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require.Error(t, response.Err)
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require.Empty(t, rts.snapshotOutCh)
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require.Contains(t, response.Err.Error(), "received unknown message")
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require.Equal(t, p2p.NodeID("aa"), response.NodeID)
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}
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func TestReactor_SnapshotsRequest(t *testing.T) {
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testcases := map[string]struct {
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snapshots []*abci.Snapshot
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expectResponses []*ssproto.SnapshotsResponse
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}{
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"no snapshots": {nil, []*ssproto.SnapshotsResponse{}},
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">10 unordered snapshots": {
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[]*abci.Snapshot{
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{Height: 1, Format: 2, Chunks: 7, Hash: []byte{1, 2}, Metadata: []byte{1}},
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{Height: 2, Format: 2, Chunks: 7, Hash: []byte{2, 2}, Metadata: []byte{2}},
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{Height: 3, Format: 2, Chunks: 7, Hash: []byte{3, 2}, Metadata: []byte{3}},
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{Height: 1, Format: 1, Chunks: 7, Hash: []byte{1, 1}, Metadata: []byte{4}},
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{Height: 2, Format: 1, Chunks: 7, Hash: []byte{2, 1}, Metadata: []byte{5}},
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{Height: 3, Format: 1, Chunks: 7, Hash: []byte{3, 1}, Metadata: []byte{6}},
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{Height: 1, Format: 4, Chunks: 7, Hash: []byte{1, 4}, Metadata: []byte{7}},
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{Height: 2, Format: 4, Chunks: 7, Hash: []byte{2, 4}, Metadata: []byte{8}},
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{Height: 3, Format: 4, Chunks: 7, Hash: []byte{3, 4}, Metadata: []byte{9}},
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{Height: 1, Format: 3, Chunks: 7, Hash: []byte{1, 3}, Metadata: []byte{10}},
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{Height: 2, Format: 3, Chunks: 7, Hash: []byte{2, 3}, Metadata: []byte{11}},
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{Height: 3, Format: 3, Chunks: 7, Hash: []byte{3, 3}, Metadata: []byte{12}},
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},
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[]*ssproto.SnapshotsResponse{
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{Height: 3, Format: 4, Chunks: 7, Hash: []byte{3, 4}, Metadata: []byte{9}},
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{Height: 3, Format: 3, Chunks: 7, Hash: []byte{3, 3}, Metadata: []byte{12}},
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{Height: 3, Format: 2, Chunks: 7, Hash: []byte{3, 2}, Metadata: []byte{3}},
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{Height: 3, Format: 1, Chunks: 7, Hash: []byte{3, 1}, Metadata: []byte{6}},
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{Height: 2, Format: 4, Chunks: 7, Hash: []byte{2, 4}, Metadata: []byte{8}},
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{Height: 2, Format: 3, Chunks: 7, Hash: []byte{2, 3}, Metadata: []byte{11}},
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{Height: 2, Format: 2, Chunks: 7, Hash: []byte{2, 2}, Metadata: []byte{2}},
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{Height: 2, Format: 1, Chunks: 7, Hash: []byte{2, 1}, Metadata: []byte{5}},
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{Height: 1, Format: 4, Chunks: 7, Hash: []byte{1, 4}, Metadata: []byte{7}},
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{Height: 1, Format: 3, Chunks: 7, Hash: []byte{1, 3}, Metadata: []byte{10}},
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},
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},
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}
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for name, tc := range testcases {
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tc := tc
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t.Run(name, func(t *testing.T) {
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// mock ABCI connection to return local snapshots
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conn := &proxymocks.AppConnSnapshot{}
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conn.On("ListSnapshotsSync", context.Background(), abci.RequestListSnapshots{}).Return(&abci.ResponseListSnapshots{
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Snapshots: tc.snapshots,
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}, nil)
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rts := setup(t, conn, nil, nil, 100)
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rts.snapshotInCh <- p2p.Envelope{
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From: p2p.NodeID("aa"),
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Message: &ssproto.SnapshotsRequest{},
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}
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if len(tc.expectResponses) > 0 {
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retryUntil(t, func() bool { return len(rts.snapshotOutCh) == len(tc.expectResponses) }, time.Second)
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}
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responses := make([]*ssproto.SnapshotsResponse, len(tc.expectResponses))
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for i := 0; i < len(tc.expectResponses); i++ {
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e := <-rts.snapshotOutCh
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responses[i] = e.Message.(*ssproto.SnapshotsResponse)
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}
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require.Equal(t, tc.expectResponses, responses)
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require.Empty(t, rts.snapshotOutCh)
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})
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}
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}
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// retryUntil will continue to evaluate fn and will return successfully when true
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// or fail when the timeout is reached.
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func retryUntil(t *testing.T, fn func() bool, timeout time.Duration) {
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ctx, cancel := context.WithTimeout(context.Background(), timeout)
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defer cancel()
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for {
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if fn() {
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return
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}
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require.NoError(t, ctx.Err())
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}
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}
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