nim-dagger/tests/dagger/helpers/mockmarket.nim

129 lines
4.1 KiB
Nim

import std/sequtils
import std/heapqueue
import pkg/questionable
import pkg/dagger/market
export market
type
MockMarket* = ref object of Market
requested*: seq[StorageRequest]
offered*: seq[StorageOffer]
selected*: seq[array[32, byte]]
subscriptions: Subscriptions
time: UInt256
waiting: HeapQueue[Expiry]
Subscriptions = object
onRequest: seq[RequestSubscription]
onOffer: seq[OfferSubscription]
onSelect: seq[SelectSubscription]
RequestSubscription* = ref object of Subscription
market: MockMarket
callback: OnRequest
OfferSubscription* = ref object of Subscription
market: MockMarket
requestId: array[32, byte]
callback: OnOffer
SelectSubscription* = ref object of Subscription
market: MockMarket
requestId: array[32, byte]
callback: OnSelect
Expiry = object
future: Future[void]
expiry: UInt256
method requestStorage*(market: MockMarket,
request: StorageRequest):
Future[StorageRequest] {.async.} =
market.requested.add(request)
let subscriptions = market.subscriptions.onRequest
for subscription in subscriptions:
subscription.callback(request.id, request.ask)
return request
method offerStorage*(market: MockMarket,
offer: StorageOffer):
Future[StorageOffer] {.async.} =
market.offered.add(offer)
let subscriptions = market.subscriptions.onOffer
for subscription in subscriptions:
if subscription.requestId == offer.requestId:
subscription.callback(offer)
return offer
proc findOffer(market: MockMarket, id: array[32, byte]): ?StorageOffer =
for offer in market.offered:
if offer.id == id:
return some offer
method selectOffer*(market: MockMarket, id: array[32, byte]) {.async.} =
market.selected.add(id)
let subscriptions = market.subscriptions.onSelect
for subscription in subscriptions:
if offer =? market.findOffer(id):
if subscription.requestId == offer.requestId:
subscription.callback(id)
method subscribeRequests*(market: MockMarket,
callback: OnRequest):
Future[Subscription] {.async.} =
let subscription = RequestSubscription(
market: market,
callback: callback
)
market.subscriptions.onRequest.add(subscription)
return subscription
method subscribeOffers*(market: MockMarket,
requestId: array[32, byte],
callback: OnOffer):
Future[Subscription] {.async.} =
let subscription = OfferSubscription(
market: market,
requestId: requestId,
callback: callback
)
market.subscriptions.onOffer.add(subscription)
return subscription
method subscribeSelection*(market: MockMarket,
requestId: array[32, byte],
callback: OnSelect):
Future[Subscription] {.async.} =
let subscription = SelectSubscription(
market: market,
requestId: requestId,
callback: callback
)
market.subscriptions.onSelect.add(subscription)
return subscription
method unsubscribe*(subscription: RequestSubscription) {.async.} =
subscription.market.subscriptions.onRequest.keepItIf(it != subscription)
method unsubscribe*(subscription: OfferSubscription) {.async.} =
subscription.market.subscriptions.onOffer.keepItIf(it != subscription)
method unsubscribe*(subscription: SelectSubscription) {.async.} =
subscription.market.subscriptions.onSelect.keepItIf(it != subscription)
func `<`(a, b: Expiry): bool =
a.expiry < b.expiry
method getTime*(market: MockMarket): Future[UInt256] {.async.} =
return market.time
method waitUntil*(market: MockMarket, expiry: UInt256): Future[void] =
let future = Future[void]()
if expiry > market.time:
market.waiting.push(Expiry(future: future, expiry: expiry))
else:
future.complete()
future
proc advanceTimeTo*(market: MockMarket, time: UInt256) =
doAssert(time >= market.time)
market.time = time
while market.waiting.len > 0 and market.waiting[0].expiry <= time:
market.waiting.pop().future.complete()