nim-codex/tests/dagger/bitswap/testengine.nim

298 lines
8.0 KiB
Nim

import std/sequtils
import std/random
import pkg/stew/byteutils
import pkg/asynctest
import pkg/chronos
import pkg/libp2p
import pkg/libp2p/errors
import pkg/dagger/p2p/rng
import pkg/dagger/bitswap
import pkg/dagger/bitswap/pendingblocks
import pkg/dagger/bitswap/engine/payments
import pkg/dagger/bitswap/protobuf/presence
import pkg/dagger/stores/memorystore
import pkg/dagger/chunker
import pkg/dagger/blocktype as bt
import ../helpers
import ../examples
suite "Bitswap engine basic":
let
rng = Rng.instance()
seckey = PrivateKey.random(rng[]).tryGet()
peerId = PeerID.init(seckey.getKey().tryGet()).tryGet()
chunker = newRandomChunker(Rng.instance(), size = 1024, chunkSize = 256)
blocks = chunker.mapIt( bt.Block.new(it) )
wallet = WalletRef.example
var
done: Future[void]
setup:
done = newFuture[void]()
test "should send want list to new peers":
proc sendWantList(
id: PeerID,
cids: seq[Cid],
priority: int32 = 0,
cancel: bool = false,
wantType: WantType = WantType.wantHave,
full: bool = false,
sendDontHave: bool = false) {.gcsafe.} =
check cids == blocks.mapIt( it.cid )
done.complete()
let request = BitswapRequest(
sendWantList: sendWantList,
)
let engine = BitswapEngine.new(MemoryStore.new(blocks), wallet, request)
engine.wantList = blocks.mapIt( it.cid )
engine.setupPeer(peerId)
await done
test "sends pricing to new peers":
let pricing = Pricing.example
proc sendPricing(peer: PeerID, toBeSent: Pricing) =
check toBeSent == pricing
done.complete()
let request = BitswapRequest(sendPricing: sendPricing)
let engine = BitswapEngine.new(MemoryStore.new, wallet, request)
engine.pricing = pricing.some
engine.setupPeer(peerId)
await done.wait(100.millis)
suite "Bitswap engine handlers":
let
rng = Rng.instance()
seckey = PrivateKey.random(rng[]).tryGet()
peerId = PeerID.init(seckey.getKey().tryGet()).tryGet()
chunker = newRandomChunker(Rng.instance(), size = 1024, chunkSize = 256)
blocks = chunker.mapIt( bt.Block.new(it) )
wallet = WalletRef.example
var
engine: BitswapEngine
peerCtx: BitswapPeerCtx
done: Future[void]
setup:
done = newFuture[void]()
engine = BitswapEngine.new(MemoryStore.new(), wallet)
peerCtx = BitswapPeerCtx(
id: peerId
)
engine.peers.add(peerCtx)
test "should handle want list":
let wantList = makeWantList(blocks.mapIt( it.cid ))
proc taskScheduler(ctx: BitswapPeerCtx): bool =
check ctx.id == peerId
check ctx.peerWants.mapIt( it.cid ) == blocks.mapIt( it.cid )
done.complete()
engine.scheduleTask = taskScheduler
engine.wantListHandler(peerId, wantList)
await done
test "should handle want list - `dont-have`":
let wantList = makeWantList(blocks.mapIt( it.cid ), sendDontHave = true)
proc sendPresence(peerId: PeerID, presence: seq[BlockPresence]) =
check presence.mapIt( it.cid ) == wantList.entries.mapIt( it.`block` )
for p in presence:
check:
p.`type` == BlockPresenceType.presenceDontHave
done.complete()
engine.request = BitswapRequest(
sendPresence: sendPresence
)
engine.wantListHandler(peerId, wantList)
await done
test "should handle want list - `dont-have` some blocks":
let wantList = makeWantList(blocks.mapIt( it.cid ), sendDontHave = true)
proc sendPresence(peerId: PeerID, presence: seq[BlockPresence]) =
check presence.mapIt( it.cid ) == blocks[2..blocks.high].mapIt( it.cid.data.buffer )
for p in presence:
check:
p.`type` == BlockPresenceType.presenceDontHave
done.complete()
engine.request = BitswapRequest(sendPresence: sendPresence)
engine.localStore.putBlocks(@[blocks[0], blocks[1]])
engine.wantListHandler(peerId, wantList)
await done
test "stores blocks in local store":
let pending = blocks.mapIt(
engine.pendingBlocks.addOrAwait( it.cid )
)
engine.blocksHandler(peerId, blocks)
let resolved = await allFinished(pending)
check resolved.mapIt( it.read ) == blocks
for b in blocks:
check engine.localStore.hasBlock(b.cid)
test "sends payments for received blocks":
let pricing = Pricing.example
let peerContext = engine.getPeerCtx(peerId)
peerContext.pricing = pricing.some
peerContext.peerPrices = blocks.mapIt((it.cid, rand(uint16).u256)).toTable
engine.request.sendPayment = proc(receiver: PeerID, payment: SignedState) =
let amount = blocks.mapIt(peerContext.peerPrices[it.cid]).foldl(a+b)
let balances = !payment.state.outcome.balances(Asset)
check receiver == peerId
check balances[pricing.address.toDestination] == amount
done.complete()
engine.blocksHandler(peerId, blocks)
await done.wait(100.millis)
test "should handle block presence":
let price = UInt256.example
engine.blockPresenceHandler(
peerId,
blocks.mapIt(
PresenceMessage.init(
Presence(
cid: it.cid,
have: true,
price: price
))))
for cid in blocks.mapIt(it.cid):
check peerCtx.peerHave.contains(cid)
check peerCtx.peerPrices[cid] == price
suite "Task Handler":
let
rng = Rng.instance()
chunker = newRandomChunker(Rng.instance(), size = 2048, chunkSize = 256)
blocks = chunker.mapIt( bt.Block.new(it) )
wallet = WalletRef.example
var
engine: BitswapEngine
peersCtx: seq[BitswapPeerCtx]
peers: seq[PeerID]
done: Future[void]
setup:
done = newFuture[void]()
engine = BitswapEngine.new(MemoryStore.new(), wallet)
peersCtx = @[]
for i in 0..3:
let seckey = PrivateKey.random(rng[]).tryGet()
peers.add(PeerID.init(seckey.getKey().tryGet()).tryGet())
peersCtx.add(BitswapPeerCtx(
id: peers[i]
))
engine.peers = peersCtx
engine.pricing = Pricing.example.some
test "Should send want-blocks in priority order":
proc sendBlocks(
id: PeerID,
blks: seq[bt.Block]) {.gcsafe.} =
check blks.len == 2
check:
blks[1].cid == blocks[0].cid
blks[0].cid == blocks[1].cid
engine.localStore.putBlocks(blocks)
engine.request.sendBlocks = sendBlocks
# second block to send by priority
peersCtx[0].peerWants.add(
Entry(
`block`: blocks[0].cid.data.buffer,
priority: 49,
cancel: false,
wantType: WantType.wantBlock,
sendDontHave: false)
)
# first block to send by priority
peersCtx[0].peerWants.add(
Entry(
`block`: blocks[1].cid.data.buffer,
priority: 50,
cancel: false,
wantType: WantType.wantBlock,
sendDontHave: false)
)
await engine.taskHandler(peersCtx[0])
test "Should send presence":
let present = blocks
let missing = @[bt.Block.new("missing".toBytes)]
let price = (!engine.pricing).price
proc sendPresence(id: PeerID, presence: seq[BlockPresence]) =
check presence.mapIt(!Presence.init(it)) == @[
Presence(cid: present[0].cid, have: true, price: price),
Presence(cid: present[1].cid, have: true, price: price),
Presence(cid: missing[0].cid, have: false)
]
engine.localStore.putBlocks(blocks)
engine.request.sendPresence = sendPresence
# have block
peersCtx[0].peerWants.add(
Entry(
`block`: present[0].cid.data.buffer,
priority: 1,
cancel: false,
wantType: WantType.wantHave,
sendDontHave: false)
)
# have block
peersCtx[0].peerWants.add(
Entry(
`block`: present[1].cid.data.buffer,
priority: 1,
cancel: false,
wantType: WantType.wantHave,
sendDontHave: false)
)
# don't have block
peersCtx[0].peerWants.add(
Entry(
`block`: missing[0].cid.data.buffer,
priority: 1,
cancel: false,
wantType: WantType.wantHave,
sendDontHave: false)
)
await engine.taskHandler(peersCtx[0])