267 lines
7.9 KiB
Nim
267 lines
7.9 KiB
Nim
import std/sequtils
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import std/sugar
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import std/tables
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import pkg/asynctest
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import pkg/chronos
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import pkg/libp2p
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import pkg/libp2p/errors
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import pkg/codex/rng
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import pkg/codex/stores
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import pkg/codex/blockexchange
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import pkg/codex/chunker
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import pkg/codex/blocktype as bt
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import ../../helpers/mockdiscovery
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import ../../helpers
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import ../../examples
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suite "Block Advertising and Discovery":
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let chunker = RandomChunker.new(Rng.instance(), size = 4096, chunkSize = 256)
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var
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blocks: seq[bt.Block]
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switch: Switch
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peerStore: PeerCtxStore
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blockDiscovery: MockDiscovery
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discovery: DiscoveryEngine
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wallet: WalletRef
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network: BlockExcNetwork
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localStore: CacheStore
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engine: BlockExcEngine
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pendingBlocks: PendingBlocksManager
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setup:
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while true:
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let chunk = await chunker.getBytes()
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if chunk.len <= 0:
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break
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blocks.add(bt.Block.new(chunk).tryGet())
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switch = newStandardSwitch(transportFlags = {ServerFlags.ReuseAddr})
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blockDiscovery = MockDiscovery.new(switch.peerInfo, 0.Port)
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wallet = WalletRef.example
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network = BlockExcNetwork.new(switch)
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localStore = CacheStore.new(blocks.mapIt( it ))
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peerStore = PeerCtxStore.new()
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pendingBlocks = PendingBlocksManager.new()
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discovery = DiscoveryEngine.new(
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localStore,
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peerStore,
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network,
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blockDiscovery,
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pendingBlocks,
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minPeersPerBlock = 1)
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engine = BlockExcEngine.new(
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localStore,
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wallet,
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network,
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discovery,
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peerStore,
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pendingBlocks)
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switch.mount(network)
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test "Should discover want list":
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let
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pendingBlocks = blocks.mapIt(
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engine.pendingBlocks.getWantHandle(it.cid)
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)
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await engine.start()
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blockDiscovery.publishProvideHandler =
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proc(d: MockDiscovery, cid: Cid): Future[void] {.async, gcsafe.} =
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return
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blockDiscovery.findBlockProvidersHandler =
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proc(d: MockDiscovery, cid: Cid): Future[seq[SignedPeerRecord]] {.async.} =
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engine.resolveBlocks(blocks.filterIt( it.cid == cid ))
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await allFuturesThrowing(
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allFinished(pendingBlocks))
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await engine.stop()
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test "Should advertise have blocks":
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let
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advertised = initTable.collect:
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for b in blocks: {b.cid: newFuture[void]()}
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blockDiscovery.publishProvideHandler = proc(d: MockDiscovery, cid: Cid) {.async.} =
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if cid in advertised and not advertised[cid].finished():
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advertised[cid].complete()
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await engine.start() # fire up advertise loop
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await allFuturesThrowing(
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allFinished(toSeq(advertised.values)))
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await engine.stop()
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test "Should not launch discovery if remote peer has block":
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let
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pendingBlocks = blocks.mapIt(
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engine.pendingBlocks.getWantHandle(it.cid)
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)
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peerId = PeerID.example
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haves = collect(initTable()):
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for blk in blocks: {blk.cid: 0.u256}
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engine.peers.add(
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BlockExcPeerCtx(
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id: peerId,
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peerPrices: haves
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))
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blockDiscovery.findBlockProvidersHandler =
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proc(d: MockDiscovery, cid: Cid): Future[seq[SignedPeerRecord]] =
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check false
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await engine.start() # fire up discovery loop
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engine.pendingBlocks.resolve(blocks)
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await allFuturesThrowing(
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allFinished(pendingBlocks))
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await engine.stop()
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suite "E2E - Multiple Nodes Discovery":
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let chunker = RandomChunker.new(Rng.instance(), size = 4096, chunkSize = 256)
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var
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switch: seq[Switch]
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blockexc: seq[NetworkStore]
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blocks: seq[bt.Block]
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setup:
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while true:
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let chunk = await chunker.getBytes()
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if chunk.len <= 0:
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break
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blocks.add(bt.Block.new(chunk).tryGet())
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for _ in 0..<4:
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let
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s = newStandardSwitch(transportFlags = {ServerFlags.ReuseAddr})
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blockDiscovery = MockDiscovery.new(s.peerInfo, 0.Port)
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wallet = WalletRef.example
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network = BlockExcNetwork.new(s)
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localStore = CacheStore.new()
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peerStore = PeerCtxStore.new()
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pendingBlocks = PendingBlocksManager.new()
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discovery = DiscoveryEngine.new(
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localStore,
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peerStore,
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network,
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blockDiscovery,
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pendingBlocks,
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minPeersPerBlock = 1)
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engine = BlockExcEngine.new(
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localStore,
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wallet,
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network,
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discovery,
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peerStore,
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pendingBlocks)
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networkStore = NetworkStore.new(engine, localStore)
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s.mount(network)
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switch.add(s)
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blockexc.add(networkStore)
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teardown:
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switch = @[]
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blockexc = @[]
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test "E2E - Should advertise and discover blocks":
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# Distribute the blocks amongst 1..3
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# Ask 0 to download everything without connecting him beforehand
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var advertised: Table[Cid, SignedPeerRecord]
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MockDiscovery(blockexc[1].engine.discovery.discovery)
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.publishProvideHandler = proc(d: MockDiscovery, cid: Cid): Future[void] {.async.} =
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advertised.add(cid, switch[1].peerInfo.signedPeerRecord)
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MockDiscovery(blockexc[2].engine.discovery.discovery)
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.publishProvideHandler = proc(d: MockDiscovery, cid: Cid): Future[void] {.async.} =
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advertised.add(cid, switch[2].peerInfo.signedPeerRecord)
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MockDiscovery(blockexc[3].engine.discovery.discovery)
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.publishProvideHandler = proc(d: MockDiscovery, cid: Cid): Future[void] {.async.} =
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advertised.add(cid, switch[3].peerInfo.signedPeerRecord)
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await blockexc[1].engine.blocksHandler(switch[0].peerInfo.peerId, blocks[0..5])
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await blockexc[2].engine.blocksHandler(switch[0].peerInfo.peerId, blocks[4..10])
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await blockexc[3].engine.blocksHandler(switch[0].peerInfo.peerId, blocks[10..15])
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MockDiscovery(blockexc[0].engine.discovery.discovery)
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.findBlockProvidersHandler = proc(d: MockDiscovery, cid: Cid):
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Future[seq[SignedPeerRecord]] {.async.} =
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if cid in advertised:
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result.add(advertised[cid])
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let futs = collect(newSeq):
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for b in blocks:
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blockexc[0].engine.requestBlock(b.cid)
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await allFuturesThrowing(
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switch.mapIt( it.start() ) &
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blockexc.mapIt( it.engine.start() ))
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await allFutures(futs)
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await allFuturesThrowing(
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blockexc.mapIt( it.engine.stop() ) &
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switch.mapIt( it.stop() ))
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test "E2E - Should advertise and discover blocks with peers already connected":
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# Distribute the blocks amongst 1..3
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# Ask 0 to download everything without connecting him beforehand
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var advertised: Table[Cid, SignedPeerRecord]
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MockDiscovery(blockexc[1].engine.discovery.discovery)
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.publishProvideHandler = proc(d: MockDiscovery, cid: Cid): Future[void] {.async.} =
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advertised[cid] = switch[1].peerInfo.signedPeerRecord
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MockDiscovery(blockexc[2].engine.discovery.discovery)
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.publishProvideHandler = proc(d: MockDiscovery, cid: Cid): Future[void] {.async.} =
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advertised[cid] = switch[2].peerInfo.signedPeerRecord
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MockDiscovery(blockexc[3].engine.discovery.discovery)
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.publishProvideHandler = proc(d: MockDiscovery, cid: Cid): Future[void] {.async.} =
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advertised[cid] = switch[3].peerInfo.signedPeerRecord
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await blockexc[1].engine.blocksHandler(switch[0].peerInfo.peerId, blocks[0..5])
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await blockexc[2].engine.blocksHandler(switch[0].peerInfo.peerId, blocks[4..10])
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await blockexc[3].engine.blocksHandler(switch[0].peerInfo.peerId, blocks[10..15])
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MockDiscovery(blockexc[0].engine.discovery.discovery)
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.findBlockProvidersHandler = proc(d: MockDiscovery, cid: Cid):
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Future[seq[SignedPeerRecord]] {.async.} =
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if cid in advertised:
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return @[advertised[cid]]
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let
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futs = blocks.mapIt( blockexc[0].engine.requestBlock( it.cid ) )
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await allFuturesThrowing(
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switch.mapIt( it.start() ) &
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blockexc.mapIt( it.engine.start() ))
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await allFutures(futs).wait(10.seconds)
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await allFuturesThrowing(
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blockexc.mapIt( it.engine.stop() ) &
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switch.mapIt( it.stop() ))
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