nim-dagger/tests/dagger/bitswap/engine/testpayments.nim

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import std/unittest
import pkg/dagger/bitswap/engine/payments
import ../../examples
suite "engine payments":
let amountOfBytes = 42
var wallet: Wallet
var peer: BitswapPeerCtx
setup:
wallet = Wallet.example
peer = BitswapPeerCtx.example
peer.pricing = Pricing.example.some
test "pays for received bytes":
let payment = wallet.pay(peer, amountOfBytes).get
let pricing = peer.pricing.get
let balances = payment.state.outcome.balances(pricing.asset)
let destination = pricing.address.toDestination
check balances[destination].get == amountOfBytes.u256 * pricing.price
test "no payment when no price is set":
peer.pricing = Pricing.none
check wallet.pay(peer, amountOfBytes).isErr
test "uses same channel for consecutive payments":
let payment1, payment2 = wallet.pay(peer, amountOfBytes)
let channel1 = payment1.?state.?channel.?getChannelId
let channel2 = payment2.?state.?channel.?getChannelId
check channel1 == channel2