240 lines
9.3 KiB
Nim
240 lines
9.3 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/codex/purchasing
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import pkg/codex/purchasing/states/[finished, error, started, submitted, unknown]
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import ./helpers/mockmarket
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import ./helpers/mockclock
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import ./helpers/eventually
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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 clock: MockClock
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var request: StorageRequest
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setup:
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market = MockMarket.new()
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clock = MockClock.new()
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purchasing = Purchasing.new(market, clock)
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request = StorageRequest(
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ask: StorageAsk(
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slots: uint8.example.uint64,
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slotSize: uint32.example.u256,
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duration: uint16.example.u256,
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reward: uint8.example.u256
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)
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)
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test "submits a storage request when asked":
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discard await purchasing.purchase(request)
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let submitted = market.requested[0]
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check submitted.ask.slots == request.ask.slots
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check submitted.ask.slotSize == request.ask.slotSize
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check submitted.ask.duration == request.ask.duration
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check submitted.ask.reward == request.ask.reward
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test "remembers purchases":
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let purchase1 = await purchasing.purchase(request)
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let purchase2 = await 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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discard await purchasing.purchase(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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discard await purchasing.purchase(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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discard await purchasing.purchase(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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discard await purchasing.purchase(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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discard await purchasing.purchase(request)
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discard await purchasing.purchase(request)
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check market.requested[0].nonce != market.requested[1].nonce
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test "sets client address in request":
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discard await purchasing.purchase(request)
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check market.requested[0].client == await market.getSigner()
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test "succeeds when request is finished":
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let purchase = await purchasing.purchase(request)
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let request = market.requested[0]
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let requestEnd = getTime().toUnix() + 42
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market.requestEnds[request.id] = requestEnd
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market.emitRequestFulfilled(request.id)
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clock.set(requestEnd)
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await purchase.wait()
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check purchase.error.isNone
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test "fails when request times out":
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let purchase = await purchasing.purchase(request)
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let request = market.requested[0]
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clock.set(request.expiry.truncate(int64))
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expect PurchaseTimeout:
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await purchase.wait()
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test "checks that funds were withdrawn when purchase times out":
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let purchase = await purchasing.purchase(request)
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let request = market.requested[0]
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clock.set(request.expiry.truncate(int64))
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expect PurchaseTimeout:
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await purchase.wait()
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check market.withdrawn == @[request.id]
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suite "Purchasing state machine":
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var purchasing: Purchasing
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var market: MockMarket
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var clock: MockClock
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var request: StorageRequest
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setup:
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market = MockMarket.new()
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clock = MockClock.new()
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purchasing = Purchasing.new(market, clock)
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request = StorageRequest(
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ask: StorageAsk(
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slots: uint8.example.uint64,
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slotSize: uint32.example.u256,
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duration: uint16.example.u256,
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reward: uint8.example.u256
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)
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)
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test "loads active purchases from market":
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let me = await market.getSigner()
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let request1, request2, request3 = StorageRequest.example
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market.requested = @[request1, request2, request3]
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market.activeRequests[me] = @[request1.id, request2.id]
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await purchasing.load()
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check isSome purchasing.getPurchase(PurchaseId(request1.id))
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check isSome purchasing.getPurchase(PurchaseId(request2.id))
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check isNone purchasing.getPurchase(PurchaseId(request3.id))
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test "loads correct purchase.future state for purchases from market":
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let me = await market.getSigner()
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let request1, request2, request3, request4, request5 = StorageRequest.example
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market.requested = @[request1, request2, request3, request4, request5]
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market.activeRequests[me] = @[request1.id, request2.id, request3.id, request4.id, request5.id]
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market.requestState[request1.id] = RequestState.New
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market.requestState[request2.id] = RequestState.Started
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market.requestState[request3.id] = RequestState.Cancelled
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market.requestState[request4.id] = RequestState.Finished
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market.requestState[request5.id] = RequestState.Failed
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# ensure the started state doesn't error, giving a false positive test result
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market.requestEnds[request2.id] = clock.now() - 1
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await purchasing.load()
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check purchasing.getPurchase(PurchaseId(request1.id)).?finished == false.some
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check purchasing.getPurchase(PurchaseId(request2.id)).?finished == true.some
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check purchasing.getPurchase(PurchaseId(request3.id)).?finished == true.some
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check purchasing.getPurchase(PurchaseId(request4.id)).?finished == true.some
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check purchasing.getPurchase(PurchaseId(request5.id)).?finished == true.some
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check purchasing.getPurchase(PurchaseId(request5.id)).?error.isSome
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test "moves to PurchaseSubmitted when request state is New":
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let request = StorageRequest.example
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let purchase = Purchase.new(request, market, clock)
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market.requested = @[request]
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market.requestState[request.id] = RequestState.New
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purchase.switch(PurchaseUnknown())
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check (purchase.state as PurchaseSubmitted).isSome
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test "moves to PurchaseStarted when request state is Started":
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let request = StorageRequest.example
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let purchase = Purchase.new(request, market, clock)
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market.requestEnds[request.id] = clock.now() + request.ask.duration.truncate(int64)
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market.requested = @[request]
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market.requestState[request.id] = RequestState.Started
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purchase.switch(PurchaseUnknown())
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check (purchase.state as PurchaseStarted).isSome
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test "moves to PurchaseErrored when request state is Cancelled":
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let request = StorageRequest.example
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let purchase = Purchase.new(request, market, clock)
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market.requested = @[request]
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market.requestState[request.id] = RequestState.Cancelled
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purchase.switch(PurchaseUnknown())
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check (purchase.state as PurchaseErrored).isSome
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check purchase.error.?msg == "Purchase cancelled due to timeout".some
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test "moves to PurchaseFinished when request state is Finished":
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let request = StorageRequest.example
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let purchase = Purchase.new(request, market, clock)
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market.requested = @[request]
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market.requestState[request.id] = RequestState.Finished
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purchase.switch(PurchaseUnknown())
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check (purchase.state as PurchaseFinished).isSome
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test "moves to PurchaseErrored when request state is Failed":
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let request = StorageRequest.example
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let purchase = Purchase.new(request, market, clock)
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market.requested = @[request]
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market.requestState[request.id] = RequestState.Failed
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purchase.switch(PurchaseUnknown())
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check (purchase.state as PurchaseErrored).isSome
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check purchase.error.?msg == "Purchase failed".some
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test "moves to PurchaseErrored state once RequestFailed emitted":
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let me = await market.getSigner()
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let request = StorageRequest.example
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market.requested = @[request]
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market.activeRequests[me] = @[request.id]
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market.requestState[request.id] = RequestState.Started
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market.requestEnds[request.id] = clock.now() + request.ask.duration.truncate(int64)
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await purchasing.load()
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# emit mock contract failure event
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market.emitRequestFailed(request.id)
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# must allow time for the callback to trigger the completion of the future
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await sleepAsync(chronos.milliseconds(10))
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# now check the result
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let purchase = purchasing.getPurchase(PurchaseId(request.id))
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let state = purchase.?state
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check (state as PurchaseErrored).isSome
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check (!purchase).error.?msg == "Purchase failed".some
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test "moves to PurchaseFinished state once request finishes":
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let me = await market.getSigner()
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let request = StorageRequest.example
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market.requested = @[request]
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market.activeRequests[me] = @[request.id]
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market.requestState[request.id] = RequestState.Started
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market.requestEnds[request.id] = clock.now() + request.ask.duration.truncate(int64)
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await purchasing.load()
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# advance the clock to the end of the request
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clock.advance(request.ask.duration.truncate(int64))
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# now check the result
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proc requestState: ?PurchaseState =
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purchasing.getPurchase(PurchaseId(request.id)).?state as PurchaseState
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check eventually (requestState() as PurchaseFinished).isSome
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