295 lines
8.0 KiB
Nim
295 lines
8.0 KiB
Nim
import std/sequtils
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import std/random
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import pkg/stew/byteutils
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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/dagger/rng
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import pkg/dagger/blockexchange
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import pkg/dagger/stores
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import pkg/dagger/chunker
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import pkg/dagger/blocktype as bt
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import pkg/dagger/utils/asyncheapqueue
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import ../helpers
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import ../examples
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suite "BlockExc engine basic":
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let
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rng = Rng.instance()
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seckey = PrivateKey.random(rng[]).tryGet()
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peerId = PeerID.init(seckey.getPublicKey().tryGet()).tryGet()
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chunker = newRandomChunker(Rng.instance(), size = 1024, chunkSize = 256)
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blocks = chunker.mapIt( !bt.Block.new(it) )
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wallet = WalletRef.example
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var
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done: Future[void]
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setup:
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done = newFuture[void]()
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test "should send want list to new peers":
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proc sendWantList(
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id: PeerID,
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cids: seq[Cid],
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priority: int32 = 0,
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cancel: bool = false,
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wantType: WantType = WantType.wantHave,
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full: bool = false,
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sendDontHave: bool = false) {.gcsafe.} =
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check cids == blocks.mapIt( it.cid )
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done.complete()
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let request = BlockExcRequest(
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sendWantList: sendWantList,
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)
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let engine = BlockExcEngine.new(MemoryStore.new(blocks), wallet, request)
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engine.wantList = blocks.mapIt( it.cid )
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engine.setupPeer(peerId)
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await done
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test "sends account to new peers":
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let pricing = Pricing.example
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proc sendAccount(peer: PeerID, account: Account) =
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check account.address == pricing.address
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done.complete()
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let request = BlockExcRequest(sendAccount: sendAccount)
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let engine = BlockExcEngine.new(MemoryStore.new, wallet, request)
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engine.pricing = pricing.some
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engine.setupPeer(peerId)
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await done.wait(100.millis)
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suite "BlockExc engine handlers":
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let
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rng = Rng.instance()
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seckey = PrivateKey.random(rng[]).tryGet()
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peerId = PeerID.init(seckey.getPublicKey().tryGet()).tryGet()
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chunker = newRandomChunker(Rng.instance(), size = 1024, chunkSize = 256)
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blocks = chunker.mapIt( !bt.Block.new(it) )
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wallet = WalletRef.example
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var
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engine: BlockExcEngine
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peerCtx: BlockExcPeerCtx
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done: Future[void]
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setup:
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done = newFuture[void]()
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engine = BlockExcEngine.new(MemoryStore.new(), wallet)
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peerCtx = BlockExcPeerCtx(
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id: peerId
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)
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engine.peers.add(peerCtx)
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test "should handle want list":
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let wantList = makeWantList(blocks.mapIt( it.cid ))
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proc taskScheduler(ctx: BlockExcPeerCtx): bool =
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check ctx.id == peerId
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check ctx.peerWants.mapIt( it.cid ) == blocks.mapIt( it.cid )
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done.complete()
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engine.scheduleTask = taskScheduler
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engine.wantListHandler(peerId, wantList)
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await done
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test "should handle want list - `dont-have`":
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let wantList = makeWantList(blocks.mapIt( it.cid ), sendDontHave = true)
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proc sendPresence(peerId: PeerID, presence: seq[BlockPresence]) =
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check presence.mapIt( it.cid ) == wantList.entries.mapIt( it.`block` )
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for p in presence:
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check:
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p.`type` == BlockPresenceType.presenceDontHave
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done.complete()
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engine.request = BlockExcRequest(
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sendPresence: sendPresence
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)
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engine.wantListHandler(peerId, wantList)
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await done
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test "should handle want list - `dont-have` some blocks":
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let wantList = makeWantList(blocks.mapIt( it.cid ), sendDontHave = true)
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proc sendPresence(peerId: PeerID, presence: seq[BlockPresence]) =
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check presence.mapIt( it.cid ) == blocks[2..blocks.high].mapIt( it.cid.data.buffer )
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for p in presence:
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check:
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p.`type` == BlockPresenceType.presenceDontHave
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done.complete()
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engine.request = BlockExcRequest(sendPresence: sendPresence)
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engine.localStore.putBlocks(@[blocks[0], blocks[1]])
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engine.wantListHandler(peerId, wantList)
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await done
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test "stores blocks in local store":
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let pending = blocks.mapIt(
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engine.pendingBlocks.addOrAwait( it.cid )
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)
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engine.blocksHandler(peerId, blocks)
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let resolved = await allFinished(pending)
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check resolved.mapIt( it.read ) == blocks
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for b in blocks:
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check engine.localStore.hasBlock(b.cid)
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test "sends payments for received blocks":
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let account = Account(address: EthAddress.example)
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let peerContext = engine.getPeerCtx(peerId)
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peerContext.account = account.some
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peerContext.peerPrices = blocks.mapIt((it.cid, rand(uint16).u256)).toTable
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engine.request.sendPayment = proc(receiver: PeerID, payment: SignedState) =
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let amount = blocks.mapIt(peerContext.peerPrices[it.cid]).foldl(a+b)
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let balances = !payment.state.outcome.balances(Asset)
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check receiver == peerId
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check balances[account.address.toDestination] == amount
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done.complete()
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engine.blocksHandler(peerId, blocks)
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await done.wait(100.millis)
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test "should handle block presence":
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let price = UInt256.example
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engine.blockPresenceHandler(
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peerId,
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blocks.mapIt(
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PresenceMessage.init(
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Presence(
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cid: it.cid,
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have: true,
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price: price
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))))
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for cid in blocks.mapIt(it.cid):
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check peerCtx.peerHave.contains(cid)
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check peerCtx.peerPrices[cid] == price
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suite "Task Handler":
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let
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rng = Rng.instance()
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chunker = newRandomChunker(Rng.instance(), size = 2048, chunkSize = 256)
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blocks = chunker.mapIt( !bt.Block.new(it) )
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wallet = WalletRef.example
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var
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engine: BlockExcEngine
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peersCtx: seq[BlockExcPeerCtx]
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peers: seq[PeerID]
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done: Future[void]
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setup:
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done = newFuture[void]()
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engine = BlockExcEngine.new(MemoryStore.new(), wallet)
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peersCtx = @[]
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for i in 0..3:
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let seckey = PrivateKey.random(rng[]).tryGet()
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peers.add(PeerID.init(seckey.getPublicKey().tryGet()).tryGet())
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peersCtx.add(BlockExcPeerCtx(
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id: peers[i]
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))
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engine.peers = peersCtx
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engine.pricing = Pricing.example.some
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test "Should send want-blocks in priority order":
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proc sendBlocks(
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id: PeerID,
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blks: seq[bt.Block]) {.gcsafe.} =
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check blks.len == 2
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check:
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blks[1].cid == blocks[0].cid
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blks[0].cid == blocks[1].cid
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engine.localStore.putBlocks(blocks)
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engine.request.sendBlocks = sendBlocks
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# second block to send by priority
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peersCtx[0].peerWants.add(
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Entry(
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`block`: blocks[0].cid.data.buffer,
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priority: 49,
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cancel: false,
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wantType: WantType.wantBlock,
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sendDontHave: false)
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)
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# first block to send by priority
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peersCtx[0].peerWants.add(
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Entry(
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`block`: blocks[1].cid.data.buffer,
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priority: 50,
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cancel: false,
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wantType: WantType.wantBlock,
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sendDontHave: false)
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)
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await engine.taskHandler(peersCtx[0])
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test "Should send presence":
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let present = blocks
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let missing = @[!bt.Block.new("missing".toBytes)]
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let price = (!engine.pricing).price
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proc sendPresence(id: PeerID, presence: seq[BlockPresence]) =
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check presence.mapIt(!Presence.init(it)) == @[
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Presence(cid: present[0].cid, have: true, price: price),
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Presence(cid: present[1].cid, have: true, price: price),
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Presence(cid: missing[0].cid, have: false)
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]
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engine.localStore.putBlocks(blocks)
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engine.request.sendPresence = sendPresence
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# have block
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peersCtx[0].peerWants.add(
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Entry(
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`block`: present[0].cid.data.buffer,
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priority: 1,
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cancel: false,
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wantType: WantType.wantHave,
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sendDontHave: false)
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)
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# have block
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peersCtx[0].peerWants.add(
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Entry(
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`block`: present[1].cid.data.buffer,
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priority: 1,
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cancel: false,
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wantType: WantType.wantHave,
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sendDontHave: false)
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)
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# don't have block
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peersCtx[0].peerWants.add(
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Entry(
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`block`: missing[0].cid.data.buffer,
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priority: 1,
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cancel: false,
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wantType: WantType.wantHave,
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sendDontHave: false)
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)
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await engine.taskHandler(peersCtx[0])
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