226 lines
6.5 KiB
Nim
226 lines
6.5 KiB
Nim
import std/sequtils
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import std/algorithm
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import pkg/asynctest
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import pkg/chronos
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import pkg/stew/byteutils
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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/stores
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import pkg/dagger/blockexchange
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import pkg/dagger/chunker
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import pkg/dagger/blocktype as bt
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import ./utils
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import ../helpers
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import ../examples
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suite "BlockExc engine - 2 nodes":
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let
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chunker1 = newRandomChunker(Rng.instance(), size = 1024, chunkSize = 256)
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blocks1 = chunker1.mapIt( !bt.Block.new(it) )
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chunker2 = newRandomChunker(Rng.instance(), size = 1024, chunkSize = 256)
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blocks2 = chunker2.mapIt( !bt.Block.new(it) )
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var
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switch1, switch2: Switch
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wallet1, wallet2: WalletRef
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pricing1, pricing2: Pricing
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network1, network2: BlockExcNetwork
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blockexc1, blockexc2: BlockExc
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awaiters: seq[Future[void]]
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peerId1, peerId2: PeerID
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peerCtx1, peerCtx2: BlockExcPeerCtx
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done: Future[void]
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setup:
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done = newFuture[void]()
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switch1 = newStandardSwitch()
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switch2 = newStandardSwitch()
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wallet1 = WalletRef.example
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wallet2 = WalletRef.example
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pricing1 = Pricing.example
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pricing2 = Pricing.example
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awaiters.add(await switch1.start())
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awaiters.add(await switch2.start())
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peerId1 = switch1.peerInfo.peerId
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peerId2 = switch2.peerInfo.peerId
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network1 = BlockExcNetwork.new(switch = switch1)
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blockexc1 = BlockExc.new(MemoryStore.new(blocks1), wallet1, network1)
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switch1.mount(network1)
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network2 = BlockExcNetwork.new(switch = switch2)
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blockexc2 = BlockExc.new(MemoryStore.new(blocks2), wallet2, network2)
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switch2.mount(network2)
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await allFuturesThrowing(
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blockexc1.start(),
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blockexc2.start(),
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)
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# initialize our want lists
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blockexc1.engine.wantList = blocks2.mapIt( it.cid )
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blockexc2.engine.wantList = blocks1.mapIt( it.cid )
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pricing1.address = wallet1.address
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pricing2.address = wallet2.address
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blockexc1.engine.pricing = pricing1.some
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blockexc2.engine.pricing = pricing2.some
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await switch1.connect(
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switch2.peerInfo.peerId,
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switch2.peerInfo.addrs)
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await sleepAsync(1.seconds) # give some time to exchange lists
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peerCtx2 = blockexc1.engine.getPeerCtx(peerId2)
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peerCtx1 = blockexc2.engine.getPeerCtx(peerId1)
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teardown:
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await allFuturesThrowing(
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blockexc1.stop(),
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blockexc2.stop(),
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switch1.stop(),
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switch2.stop())
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await allFuturesThrowing(awaiters)
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test "should exchange want lists on connect":
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check not isNil(peerCtx1)
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check not isNil(peerCtx2)
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check:
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peerCtx1.peerHave.mapIt( $it ).sorted(cmp[string]) ==
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blockexc2.engine.wantList.mapIt( $it ).sorted(cmp[string])
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peerCtx2.peerHave.mapIt( $it ).sorted(cmp[string]) ==
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blockexc1.engine.wantList.mapIt( $it ).sorted(cmp[string])
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test "exchanges accounts on connect":
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check peerCtx1.account.?address == pricing1.address.some
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check peerCtx2.account.?address == pricing2.address.some
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test "should send want-have for block":
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let blk = !bt.Block.new("Block 1".toBytes)
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blockexc2.engine.localStore.putBlocks(@[blk])
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let entry = Entry(
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`block`: blk.cid.data.buffer,
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priority: 1,
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cancel: false,
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wantType: WantType.wantBlock,
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sendDontHave: false)
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peerCtx1.peerWants.add(entry)
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check blockexc2.taskQueue.pushOrUpdateNoWait(peerCtx1).isOk
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await sleepAsync(100.millis)
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check blockexc1.engine.localStore.hasBlock(blk.cid)
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test "should get blocks from remote":
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let blocks = await blockexc1.getBlocks(blocks2.mapIt( it.cid ))
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check blocks == blocks2
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test "remote should send blocks when available":
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let blk = !bt.Block.new("Block 1".toBytes)
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# should fail retrieving block from remote
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check not await blockexc1.getBlocks(@[blk.cid])
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.withTimeout(100.millis) # should expire
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proc onBlocks(evt: BlockStoreChangeEvt) =
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check evt.cids == @[blk.cid]
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done.complete()
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blockexc1.engine.localStore.addChangeHandler(onBlocks, ChangeType.Added)
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# first put the required block in the local store
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blockexc2.engine.localStore.putBlocks(@[blk])
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# second trigger blockexc to resolve any pending requests
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# for the block
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blockexc2.putBlocks(@[blk])
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await done
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test "receives payments for blocks that were sent":
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let blocks = await blockexc1.getBlocks(blocks2.mapIt(it.cid))
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await sleepAsync(100.millis)
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let channel = !peerCtx1.paymentChannel
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check wallet2.balance(channel, Asset) > 0
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suite "BlockExc - multiple nodes":
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let
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chunker = newRandomChunker(Rng.instance(), size = 4096, chunkSize = 256)
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blocks = chunker.mapIt( !bt.Block.new(it) )
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var
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switch: seq[Switch]
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blockexc: seq[BlockExc]
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awaiters: seq[Future[void]]
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setup:
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for e in generateNodes(5):
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switch.add(e.switch)
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blockexc.add(e.blockexc)
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await e.blockexc.start()
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awaiters = switch.mapIt(
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(await it.start())
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).concat()
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teardown:
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await allFuturesThrowing(
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switch.mapIt( it.stop() )
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)
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await allFuturesThrowing(awaiters)
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test "should receive haves for own want list":
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let
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downloader = blockexc[4]
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engine = downloader.engine
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# Add blocks from 1st peer to want list
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engine.wantList &= blocks[0..3].mapIt( it.cid )
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engine.wantList &= blocks[12..15].mapIt( it.cid )
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blockexc[0].engine.localStore.putBlocks(blocks[0..3])
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blockexc[1].engine.localStore.putBlocks(blocks[4..7])
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blockexc[2].engine.localStore.putBlocks(blocks[8..11])
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blockexc[3].engine.localStore.putBlocks(blocks[12..15])
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await connectNodes(switch)
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await sleepAsync(1.seconds)
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check:
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engine.peers[0].peerHave.mapIt($it).sorted(cmp[string]) ==
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blocks[0..3].mapIt( it.cid ).mapIt($it).sorted(cmp[string])
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engine.peers[3].peerHave.mapIt($it).sorted(cmp[string]) ==
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blocks[12..15].mapIt( it.cid ).mapIt($it).sorted(cmp[string])
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test "should exchange blocks with multiple nodes":
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let
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downloader = blockexc[4]
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engine = downloader.engine
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# Add blocks from 1st peer to want list
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engine.wantList &= blocks[0..3].mapIt( it.cid )
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engine.wantList &= blocks[12..15].mapIt( it.cid )
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blockexc[0].engine.localStore.putBlocks(blocks[0..3])
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blockexc[1].engine.localStore.putBlocks(blocks[4..7])
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blockexc[2].engine.localStore.putBlocks(blocks[8..11])
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blockexc[3].engine.localStore.putBlocks(blocks[12..15])
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await connectNodes(switch)
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let wantListBlocks = await downloader.getBlocks(blocks[0..3].mapIt( it.cid ))
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check wantListBlocks == blocks[0..3]
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