Fix test node setup

node/api.go

@@ -2,8 +2,6 @@ package node
 
 import (
 	"context"
-	"github.com/ipfs/go-filestore"
-
 	"github.com/filecoin-project/go-lotus/api"
 	"github.com/filecoin-project/go-lotus/build"
 	"github.com/filecoin-project/go-lotus/chain"
@@ -23,7 +21,6 @@ type API struct {
 	Host      host.Host
 	Chain     *chain.ChainStore
 	PubSub    *pubsub.PubSub
-	Filestore *filestore.Filestore
 	Mpool     *chain.MessagePool
 	Wallet    *chain.Wallet
 }

node/builder.go

@@ -168,8 +168,7 @@ func Online() Option {
 		Override(new(blockstore.GCLocker), blockstore.NewGCLocker),
 		Override(new(blockstore.GCBlockstore), blockstore.NewGCBlockstore),
 		Override(new(exchange.Interface), modules.Bitswap),
-		Override(new(*filestore.Filestore), modules.ClientFstore),
-		Override(new(ipld.DAGService), modules.ClientDAG),
+		Override(new(ipld.DAGService), testing.MemoryClientDag),
 
 		// Filecoin services
 		Override(new(*chain.Syncer), chain.NewSyncer),
@@ -221,6 +220,9 @@ func Repo(r repo.Repo) Option {
 		Override(new(datastore.Batching), modules.Datastore),
 		Override(new(blockstore.Blockstore), modules.Blockstore),
 
+		Override(new(*filestore.Filestore), modules.ClientFstore),
+		Override(new(ipld.DAGService), modules.ClientDAG),
+
 		Override(new(ci.PrivKey), pk),
 		Override(new(ci.PubKey), ci.PrivKey.GetPublic),
 		Override(new(peer.ID), peer.IDFromPublicKey),

node/client/import.go

@@ -2,6 +2,7 @@ package client
 
 import (
 	"context"
+	"errors"
 	"github.com/filecoin-project/go-lotus/api"
 	"github.com/ipfs/go-filestore"
 	"go.uber.org/fx"
@@ -19,7 +20,7 @@ type LocalStorage struct {
 	fx.In
 
 	LocalDAG  ipld.DAGService
-	Filestore *filestore.Filestore
+	Filestore *filestore.Filestore `optional:"true"`
 }
 
 func (s *LocalStorage) ClientImport(ctx context.Context, path string) (cid.Cid, error) {
@@ -60,6 +61,9 @@ func (s *LocalStorage) ClientImport(ctx context.Context, path string) (cid.Cid,
 }
 
 func (s *LocalStorage) ClientListImports(ctx context.Context) ([]api.Import, error) {
+	if s.Filestore == nil {
+		return nil, errors.New("listing imports is not supported with in-memory dag yet")
+	}
 	next, err := filestore.ListAll(s.Filestore, false)
 	if err != nil {
 		return nil, err

node/modules/core.go

@@ -2,20 +2,20 @@ package modules
 
 import (
 	"context"
-	"github.com/ipfs/go-blockservice"
-	"github.com/ipfs/go-datastore/namespace"
-	"github.com/ipfs/go-filestore"
-	"github.com/ipfs/go-merkledag"
 	"path/filepath"
 
 	"github.com/ipfs/go-bitswap"
 	"github.com/ipfs/go-bitswap/network"
+	"github.com/ipfs/go-blockservice"
 	"github.com/ipfs/go-datastore"
+	"github.com/ipfs/go-datastore/namespace"
+	"github.com/ipfs/go-filestore"
 	blockstore "github.com/ipfs/go-ipfs-blockstore"
 	exchange "github.com/ipfs/go-ipfs-exchange-interface"
 	offline "github.com/ipfs/go-ipfs-exchange-offline"
 	ipld "github.com/ipfs/go-ipld-format"
 	logging "github.com/ipfs/go-log"
+	"github.com/ipfs/go-merkledag"
 	"github.com/libp2p/go-libp2p-core/host"
 	"github.com/libp2p/go-libp2p-core/peerstore"
 	"github.com/libp2p/go-libp2p-core/routing"

node/modules/testing/storage.go

@@ -1,9 +1,16 @@
 package testing
 
 import (
+	"context"
+
+	"github.com/ipfs/go-blockservice"
 	"github.com/ipfs/go-datastore"
 	dsync "github.com/ipfs/go-datastore/sync"
 	blockstore "github.com/ipfs/go-ipfs-blockstore"
+	offline "github.com/ipfs/go-ipfs-exchange-offline"
+	ipld "github.com/ipfs/go-ipld-format"
+	"github.com/ipfs/go-merkledag"
+	"go.uber.org/fx"
 )
 
 func MapBlockstore() blockstore.Blockstore {
@@ -16,3 +23,17 @@ func MapBlockstore() blockstore.Blockstore {
 func MapDatastore() datastore.Batching {
 	return dsync.MutexWrap(datastore.NewMapDatastore())
 }
+
+func MemoryClientDag(lc fx.Lifecycle) ipld.DAGService {
+	ibs := blockstore.NewBlockstore(datastore.NewMapDatastore())
+	bsvc := blockservice.New(ibs, offline.Exchange(ibs))
+	dag := merkledag.NewDAGService(bsvc)
+
+	lc.Append(fx.Hook{
+		OnStop: func(_ context.Context) error {
+			return bsvc.Close()
+		},
+	})
+
+	return dag
+}