124 lines
4.2 KiB
Nim
124 lines
4.2 KiB
Nim
import std/times
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import pkg/asynctest
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import pkg/chronos
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import pkg/stint
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import pkg/dagger/purchasing
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import ./helpers/mockmarket
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import ./examples
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suite "Purchasing":
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var purchasing: Purchasing
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var market: MockMarket
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var request: StorageRequest
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setup:
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market = MockMarket.new()
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purchasing = Purchasing.new(market)
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request = StorageRequest(
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ask: StorageAsk(
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duration: uint16.example.u256,
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size: uint32.example.u256,
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)
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)
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proc purchaseAndWait(request: StorageRequest) {.async.} =
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let purchase = purchasing.purchase(request)
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market.advanceTimeTo(market.requested[^1].expiry)
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await purchase.wait()
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test "submits a storage request when asked":
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await purchaseAndWait(request)
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let submitted = market.requested[0]
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check submitted.ask.duration == request.ask.duration
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check submitted.ask.size == request.ask.size
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check submitted.ask.maxPrice == request.ask.maxPrice
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test "remembers purchases":
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let purchase1 = purchasing.purchase(request)
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let purchase2 = purchasing.purchase(request)
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check purchasing.getPurchase(purchase1.id) == some purchase1
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check purchasing.getPurchase(purchase2.id) == some purchase2
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test "has a default value for proof probability":
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check purchasing.proofProbability != 0.u256
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test "can change default value for proof probability":
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purchasing.proofProbability = 42.u256
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await purchaseAndWait(request)
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check market.requested[0].ask.proofProbability == 42.u256
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test "can override proof probability per request":
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request.ask.proofProbability = 42.u256
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await purchaseAndWait(request)
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check market.requested[0].ask.proofProbability == 42.u256
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test "has a default value for request expiration interval":
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check purchasing.requestExpiryInterval != 0.u256
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test "can change default value for request expiration interval":
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purchasing.requestExpiryInterval = 42.u256
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let start = getTime().toUnix()
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await purchaseAndWait(request)
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check market.requested[0].expiry == (start + 42).u256
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test "can override expiry time per request":
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let expiry = (getTime().toUnix() + 42).u256
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request.expiry = expiry
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await purchaseAndWait(request)
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check market.requested[0].expiry == expiry
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test "includes a random nonce in every storage request":
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await purchaseAndWait(request)
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await purchaseAndWait(request)
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check market.requested[0].nonce != market.requested[1].nonce
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proc createOffer(request: StorageRequest): StorageOffer =
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StorageOffer(
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requestId: request.id,
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expiry: (getTime() + initDuration(hours = 1)).toUnix().u256
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)
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test "selects the cheapest offer":
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let purchase = purchasing.purchase(request)
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let request = market.requested[0]
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var offer1, offer2 = createOffer(request)
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offer1.price = 20.u256
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offer2.price = 10.u256
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discard await market.offerStorage(offer1)
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discard await market.offerStorage(offer2)
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market.advanceTimeTo(request.expiry)
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await purchase.wait()
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check market.selected[0] == offer2.id
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test "ignores offers that expired":
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let expired = (getTime() - initTimeInterval(hours = 1)).toUnix().u256
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let purchase = purchasing.purchase(request)
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let request = market.requested[0]
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var offer1, offer2 = request.createOffer()
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offer1.price = 20.u256
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offer2.price = 10.u256
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offer2.expiry = expired
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discard await market.offerStorage(offer1)
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discard await market.offerStorage(offer2)
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market.advanceTimeTo(request.expiry)
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await purchase.wait()
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check market.selected[0] == offer1.id
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test "has a default expiration margin for offers":
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check purchasing.offerExpiryMargin != 0.u256
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test "ignores offers that are about to expire":
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let expiryMargin = purchasing.offerExpiryMargin
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let purchase = purchasing.purchase(request)
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let request = market.requested[0]
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var offer1, offer2 = request.createOffer()
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offer1.price = 20.u256
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offer2.price = 10.u256
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offer2.expiry = getTime().toUnix().u256 + expiryMargin - 1
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discard await market.offerStorage(offer1)
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discard await market.offerStorage(offer2)
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market.advanceTimeTo(request.expiry)
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await purchase.wait()
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check market.selected[0] == offer1.id
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