dagger-contracts/test/Marketplace.test.js

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const { ethers } = require("hardhat")
const { hexlify, randomBytes } = ethers.utils
const { AddressZero } = ethers.constants
const { BigNumber } = ethers
const { expect } = require("chai")
const { exampleConfiguration, exampleRequest } = require("./examples")
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const { periodic, hours } = require("./time")
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const { requestId, slotId, askToArray } = require("./ids")
const {
RequestState,
SlotState,
enableRequestAssertions,
} = require("./requests")
const {
waitUntilCancelled,
waitUntilStarted,
waitUntilFinished,
waitUntilFailed,
waitUntilSlotFailed,
} = require("./marketplace")
const { price, pricePerSlot } = require("./price")
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const {
snapshot,
revert,
mine,
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ensureMinimumBlockHeight,
advanceTimeForNextBlock,
advanceTimeToForNextBlock,
currentTime,
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} = require("./evm")
const ACCOUNT_STARTING_BALANCE = 1_000_000_000
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describe("Marketplace constructor", function () {
let Marketplace, token, verifier, config
beforeEach(async function () {
await snapshot()
await ensureMinimumBlockHeight(256)
const TestToken = await ethers.getContractFactory("TestToken")
token = await TestToken.deploy()
const TestVerifier = await ethers.getContractFactory("TestVerifier")
verifier = await TestVerifier.deploy()
Marketplace = await ethers.getContractFactory("TestMarketplace")
config = exampleConfiguration()
})
afterEach(async function () {
await revert()
})
function testPercentageOverflow(property) {
it(`should reject for ${property} overflowing percentage values`, async () => {
config.collateral[property] = 101
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await expect(
Marketplace.deploy(config, token.address, verifier.address)
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).to.be.revertedWith("Must be less than 100")
})
}
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testPercentageOverflow("repairRewardPercentage")
testPercentageOverflow("slashPercentage")
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it("should reject when total slash percentage exceeds 100%", async () => {
config.collateral.slashPercentage = 1
config.collateral.maxNumberOfSlashes = 101
await expect(
Marketplace.deploy(config, token.address, verifier.address)
).to.be.revertedWith("Maximum slashing exceeds 100%")
})
})
describe("Marketplace", function () {
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const proof = hexlify(randomBytes(256))
const config = exampleConfiguration()
let marketplace
let token
let verifier
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let client, host, host1, host2, host3
let request
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let slot
enableRequestAssertions()
beforeEach(async function () {
await snapshot()
await ensureMinimumBlockHeight(256)
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;[client, host1, host2, host3] = await ethers.getSigners()
host = host1
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const TestToken = await ethers.getContractFactory("TestToken")
token = await TestToken.deploy()
for (let account of [client, host1, host2, host3]) {
await token.mint(account.address, ACCOUNT_STARTING_BALANCE)
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}
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const TestVerifier = await ethers.getContractFactory("TestVerifier")
verifier = await TestVerifier.deploy()
const Marketplace = await ethers.getContractFactory("TestMarketplace")
marketplace = await Marketplace.deploy(
config,
token.address,
verifier.address
)
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request = await exampleRequest()
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request.client = client.address
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slot = {
request: requestId(request),
index: request.ask.slots / 2,
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}
})
afterEach(async function () {
await revert()
})
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function switchAccount(account) {
token = token.connect(account)
marketplace = marketplace.connect(account)
}
describe("requesting storage", function () {
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beforeEach(function () {
switchAccount(client)
})
it("emits event when storage is requested", async function () {
await token.approve(marketplace.address, price(request))
await expect(marketplace.requestStorage(request))
.to.emit(marketplace, "StorageRequested")
.withArgs(requestId(request), askToArray(request.ask), request.expiry)
})
it("allows retrieval of request details", async function () {
await token.approve(marketplace.address, price(request))
await marketplace.requestStorage(request)
const id = requestId(request)
expect(await marketplace.getRequest(id)).to.be.request(request)
})
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it("rejects request with invalid client address", async function () {
let invalid = { ...request, client: host.address }
await token.approve(marketplace.address, price(invalid))
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await expect(marketplace.requestStorage(invalid)).to.be.revertedWith(
"Invalid client address"
)
})
it("rejects request with insufficient payment", async function () {
let insufficient = price(request) - 1
await token.approve(marketplace.address, insufficient)
await expect(marketplace.requestStorage(request)).to.be.revertedWith(
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"ERC20: insufficient allowance"
)
})
it("rejects request when expiry is after request end", async function () {
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request.expiry = (await currentTime()) + request.ask.duration + hours(1)
await token.approve(marketplace.address, price(request))
await expect(marketplace.requestStorage(request)).to.be.revertedWith(
"Request end before expiry"
)
})
it("rejects resubmission of request", async function () {
await token.approve(marketplace.address, price(request) * 2)
await marketplace.requestStorage(request)
await expect(marketplace.requestStorage(request)).to.be.revertedWith(
"Request already exists"
)
})
})
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describe("filling a slot with collateral", function () {
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beforeEach(async function () {
switchAccount(client)
await token.approve(marketplace.address, price(request))
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await marketplace.requestStorage(request)
switchAccount(host)
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await token.approve(marketplace.address, request.ask.collateral)
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})
it("emits event when slot is filled", async function () {
await expect(marketplace.fillSlot(slot.request, slot.index, proof))
.to.emit(marketplace, "SlotFilled")
.withArgs(slot.request, slot.index)
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})
it("allows retrieval of host that filled slot", async function () {
expect(await marketplace.getHost(slotId(slot))).to.equal(AddressZero)
await marketplace.fillSlot(slot.request, slot.index, proof)
expect(await marketplace.getHost(slotId(slot))).to.equal(host.address)
})
it("fails to retrieve a request of an empty slot", async function () {
expect(marketplace.getActiveSlot(slotId(slot))).to.be.revertedWith(
"Slot is free"
)
})
it("allows retrieval of request of a filled slot", async function () {
await marketplace.fillSlot(slot.request, slot.index, proof)
let activeSlot = await marketplace.getActiveSlot(slotId(slot))
expect(activeSlot.request).to.be.request(request)
expect(activeSlot.slotIndex).to.equal(slot.index)
})
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it("is rejected when proof is incorrect", async function () {
await verifier.setProofsAreValid(false)
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await expect(
marketplace.fillSlot(slot.request, slot.index, proof)
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).to.be.revertedWith("Invalid proof")
})
it("is rejected when slot already filled", async function () {
await marketplace.fillSlot(slot.request, slot.index, proof)
await expect(
marketplace.fillSlot(slot.request, slot.index, proof)
).to.be.revertedWith("Slot is not free")
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})
it("is rejected when request is unknown", async function () {
let unknown = await exampleRequest()
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await expect(
marketplace.fillSlot(requestId(unknown), 0, proof)
).to.be.revertedWith("Unknown request")
})
it("is rejected when request is cancelled", async function () {
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switchAccount(client)
let expired = { ...request, expiry: (await currentTime()) - hours(1) }
await token.approve(marketplace.address, price(request))
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await marketplace.requestStorage(expired)
switchAccount(host)
await expect(
marketplace.fillSlot(requestId(expired), slot.index, proof)
).to.be.revertedWith("Slot is not free")
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})
it("is rejected when request is finished", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
await waitUntilFinished(marketplace, slot.request)
await expect(
marketplace.fillSlot(slot.request, slot.index, proof)
).to.be.revertedWith("Slot is not free")
})
it("is rejected when request is failed", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
await waitUntilFailed(marketplace, request)
await expect(
marketplace.fillSlot(slot.request, slot.index, proof)
).to.be.revertedWith("Slot is not free")
})
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it("is rejected when slot index not in range", async function () {
const invalid = request.ask.slots
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await expect(
marketplace.fillSlot(slot.request, invalid, proof)
).to.be.revertedWith("Invalid slot")
})
it("fails when all slots are already filled", async function () {
const lastSlot = request.ask.slots - 1
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await token.approve(
marketplace.address,
request.ask.collateral * lastSlot
)
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await token.approve(marketplace.address, price(request) * lastSlot)
for (let i = 0; i <= lastSlot; i++) {
await marketplace.fillSlot(slot.request, i, proof)
}
await expect(
marketplace.fillSlot(slot.request, lastSlot, proof)
).to.be.revertedWith("Slot is not free")
})
})
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describe("filling slot without collateral", function () {
beforeEach(async function () {
switchAccount(client)
await token.approve(marketplace.address, price(request))
await marketplace.requestStorage(request)
switchAccount(host)
})
it("is rejected when approved collateral is insufficient", async function () {
let insufficient = request.ask.collateral - 1
await token.approve(marketplace.address, insufficient)
await expect(
marketplace.fillSlot(slot.request, slot.index, proof)
).to.be.revertedWith("ERC20: insufficient allowance")
})
it("collects only requested collateral and not more", async function () {
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await token.approve(marketplace.address, request.ask.collateral * 2)
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const startBalanace = await token.balanceOf(host.address)
await marketplace.fillSlot(slot.request, slot.index, proof)
const endBalance = await token.balanceOf(host.address)
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expect(startBalanace - endBalance).to.eq(request.ask.collateral)
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})
})
describe("request end", function () {
var requestTime
beforeEach(async function () {
switchAccount(client)
await token.approve(marketplace.address, price(request))
await marketplace.requestStorage(request)
requestTime = await currentTime()
switchAccount(host)
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await token.approve(marketplace.address, request.ask.collateral)
})
it("sets the request end time to now + duration", async function () {
await marketplace.fillSlot(slot.request, slot.index, proof)
await expect(
(await marketplace.requestEnd(requestId(request))).toNumber()
).to.be.closeTo(requestTime + request.ask.duration, 1)
})
it("sets request end time to the past once failed", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
await waitUntilFailed(marketplace, request)
let slot0 = { ...slot, index: request.ask.maxSlotLoss + 1 }
const now = await currentTime()
await expect(await marketplace.requestEnd(requestId(request))).to.be.eq(
now - 1
)
})
it("sets request end time to the past once cancelled", async function () {
await marketplace.fillSlot(slot.request, slot.index, proof)
await waitUntilCancelled(request)
await mine()
const now = await currentTime()
await expect(await marketplace.requestEnd(requestId(request))).to.be.eq(
now - 1
)
})
it("checks that request end time is in the past once finished", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
await waitUntilFinished(marketplace, requestId(request))
await mine()
const now = await currentTime()
// in the process of calling currentTime and requestEnd,
// block.timestamp has advanced by 1, so the expected proof end time will
// be block.timestamp - 1.
await expect(await marketplace.requestEnd(requestId(request))).to.be.eq(
now - 1
)
})
})
describe("freeing a slot", function () {
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let id
beforeEach(async function () {
slot.index = 0
id = slotId(slot)
switchAccount(client)
await token.approve(marketplace.address, price(request))
await marketplace.requestStorage(request)
switchAccount(host)
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await token.approve(marketplace.address, request.ask.collateral)
})
it("fails to free slot when slot not filled", async function () {
slot.index = 5
let nonExistentId = slotId(slot)
await expect(marketplace.freeSlot(nonExistentId)).to.be.revertedWith(
"Slot is free"
)
})
it("can only be freed by the host occupying the slot", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
switchAccount(client)
await expect(marketplace.freeSlot(id)).to.be.revertedWith(
"Slot filled by other host"
)
})
it("successfully frees slot", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
await expect(marketplace.freeSlot(id)).not.to.be.reverted
})
it("emits event once slot is freed", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
await expect(await marketplace.freeSlot(id))
.to.emit(marketplace, "SlotFreed")
.withArgs(slot.request, slot.index)
})
})
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describe("paying out a slot", function () {
beforeEach(async function () {
switchAccount(client)
await token.approve(marketplace.address, price(request))
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await marketplace.requestStorage(request)
switchAccount(host)
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await token.approve(marketplace.address, request.ask.collateral)
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})
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it("pays the host when contract has finished and returns collateral", async function () {
await waitUntilStarted(marketplace, request, proof, token)
await waitUntilFinished(marketplace, requestId(request))
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const startBalance = await token.balanceOf(host.address)
await marketplace.freeSlot(slotId(slot))
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const endBalance = await token.balanceOf(host.address)
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expect(endBalance - startBalance).to.equal(
pricePerSlot(request) + request.ask.collateral
)
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})
it("pays the host when contract was cancelled", async function () {
// Lets move the time into middle of the expiry window
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const fillTimestamp =
(await currentTime()) +
Math.floor((request.expiry - (await currentTime())) / 2) -
1
await advanceTimeToForNextBlock(fillTimestamp)
await marketplace.fillSlot(slot.request, slot.index, proof)
await waitUntilCancelled(request)
await marketplace.freeSlot(slotId(slot))
const endBalance = await token.balanceOf(host.address)
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const expectedPartialPayout =
(request.expiry - fillTimestamp) * request.ask.reward
expect(endBalance - ACCOUNT_STARTING_BALANCE).to.be.equal(
expectedPartialPayout
)
})
it("does not pay when the contract hasn't ended", async function () {
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await marketplace.fillSlot(slot.request, slot.index, proof)
const startBalance = await token.balanceOf(host.address)
await marketplace.freeSlot(slotId(slot))
const endBalance = await token.balanceOf(host.address)
expect(endBalance).to.equal(startBalance)
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})
it("can only be done once", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
await waitUntilFinished(marketplace, requestId(request))
await marketplace.freeSlot(slotId(slot))
await expect(marketplace.freeSlot(slotId(slot))).to.be.revertedWith(
"Already paid"
)
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})
it("cannot be filled again", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
await waitUntilFinished(marketplace, requestId(request))
await marketplace.freeSlot(slotId(slot))
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await expect(marketplace.fillSlot(slot.request, slot.index, proof)).to.be
.reverted
})
})
describe("fulfilling a request", function () {
beforeEach(async function () {
switchAccount(client)
await token.approve(marketplace.address, price(request))
await marketplace.requestStorage(request)
switchAccount(host)
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await token.approve(marketplace.address, request.ask.collateral)
})
it("emits event when all slots are filled", async function () {
const lastSlot = request.ask.slots - 1
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await token.approve(
marketplace.address,
request.ask.collateral * lastSlot
)
for (let i = 0; i < lastSlot; i++) {
await marketplace.fillSlot(slot.request, i, proof)
}
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await token.approve(marketplace.address, request.ask.collateral)
await expect(marketplace.fillSlot(slot.request, lastSlot, proof))
.to.emit(marketplace, "RequestFulfilled")
.withArgs(requestId(request))
})
it("sets state when all slots are filled", async function () {
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const slots = request.ask.slots
await token.approve(marketplace.address, request.ask.collateral * slots)
for (let i = 0; i < slots; i++) {
await marketplace.fillSlot(slot.request, i, proof)
}
await expect(await marketplace.requestState(slot.request)).to.equal(
RequestState.Started
)
})
it("fails when all slots are already filled", async function () {
const lastSlot = request.ask.slots - 1
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await token.approve(
marketplace.address,
request.ask.collateral * (lastSlot + 1)
)
for (let i = 0; i <= lastSlot; i++) {
await marketplace.fillSlot(slot.request, i, proof)
}
await expect(
marketplace.fillSlot(slot.request, lastSlot, proof)
).to.be.revertedWith("Slot is not free")
})
})
describe("withdrawing funds", function () {
beforeEach(async function () {
switchAccount(client)
await token.approve(marketplace.address, price(request))
await marketplace.requestStorage(request)
switchAccount(host)
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await token.approve(marketplace.address, request.ask.collateral)
})
it("rejects withdraw when request not yet timed out", async function () {
switchAccount(client)
await expect(marketplace.withdrawFunds(slot.request)).to.be.revertedWith(
"Request not yet timed out"
)
})
it("rejects withdraw when wrong account used", async function () {
await waitUntilCancelled(request)
await expect(marketplace.withdrawFunds(slot.request)).to.be.revertedWith(
"Invalid client address"
)
})
it("rejects withdraw when in wrong state", async function () {
// fill all slots, should change state to RequestState.Started
const lastSlot = request.ask.slots - 1
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await token.approve(
marketplace.address,
request.ask.collateral * (lastSlot + 1)
)
for (let i = 0; i <= lastSlot; i++) {
await marketplace.fillSlot(slot.request, i, proof)
}
await waitUntilCancelled(request)
switchAccount(client)
await expect(marketplace.withdrawFunds(slot.request)).to.be.revertedWith(
"Invalid state"
)
})
it("emits event once request is cancelled", async function () {
await waitUntilCancelled(request)
switchAccount(client)
await expect(marketplace.withdrawFunds(slot.request))
.to.emit(marketplace, "RequestCancelled")
.withArgs(requestId(request))
})
it("withdraws to the client", async function () {
await waitUntilCancelled(request)
switchAccount(client)
const startBalance = await token.balanceOf(client.address)
await marketplace.withdrawFunds(slot.request)
const endBalance = await token.balanceOf(client.address)
expect(endBalance - startBalance).to.equal(price(request))
})
it("withdraws to the client for cancelled requests lowered by hosts payout", async function () {
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const fillTimestamp =
(await currentTime()) +
Math.floor((request.expiry - (await currentTime())) / 2)
await advanceTimeToForNextBlock(fillTimestamp)
await marketplace.fillSlot(slot.request, slot.index, proof)
await waitUntilCancelled(request)
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const expectedPartialHostPayout =
(request.expiry - fillTimestamp) * request.ask.reward
switchAccount(client)
await marketplace.withdrawFunds(slot.request)
const endBalance = await token.balanceOf(client.address)
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expect(ACCOUNT_STARTING_BALANCE - endBalance).to.equal(
expectedPartialHostPayout
)
})
})
describe("request state", function () {
const { New, Cancelled, Started, Failed, Finished } = RequestState
beforeEach(async function () {
switchAccount(client)
await token.approve(marketplace.address, price(request))
await marketplace.requestStorage(request)
switchAccount(host)
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await token.approve(marketplace.address, request.ask.collateral)
})
it("is 'New' initially", async function () {
expect(await marketplace.requestState(slot.request)).to.equal(New)
})
it("changes to 'Cancelled' once request is cancelled", async function () {
await waitUntilCancelled(request)
await mine()
expect(await marketplace.requestState(slot.request)).to.equal(Cancelled)
})
it("remains 'Cancelled' when client withdraws funds", async function () {
await waitUntilCancelled(request)
switchAccount(client)
await marketplace.withdrawFunds(slot.request)
expect(await marketplace.requestState(slot.request)).to.equal(Cancelled)
})
it("changes to 'Started' once all slots are filled", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
expect(await marketplace.requestState(slot.request)).to.equal(Started)
})
it("changes to 'Failed' once too many slots are freed", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
await waitUntilFailed(marketplace, request)
await mine()
expect(await marketplace.requestState(slot.request)).to.equal(Failed)
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})
it("does not change to 'Failed' before it is started", async function () {
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await token.approve(
marketplace.address,
request.ask.collateral * (request.ask.maxSlotLoss + 1)
)
for (let i = 0; i <= request.ask.maxSlotLoss; i++) {
await marketplace.fillSlot(slot.request, i, proof)
}
for (let i = 0; i <= request.ask.maxSlotLoss; i++) {
slot.index = i
let id = slotId(slot)
await marketplace.forciblyFreeSlot(id)
}
expect(await marketplace.requestState(slot.request)).to.equal(New)
})
it("changes to 'Finished' when the request ends", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
await waitUntilFinished(marketplace, requestId(request))
await mine()
expect(await marketplace.requestState(slot.request)).to.equal(Finished)
})
it("remains 'Finished' once a slot is paid out", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
await waitUntilFinished(marketplace, requestId(request))
await marketplace.freeSlot(slotId(slot))
expect(await marketplace.requestState(slot.request)).to.equal(Finished)
})
})
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describe("slot state", function () {
const { Free, Filled, Finished, Failed, Paid, Cancelled } = SlotState
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let period, periodEnd
beforeEach(async function () {
period = config.proofs.period
;({ periodOf, periodEnd } = periodic(period))
switchAccount(client)
await token.approve(marketplace.address, price(request))
await marketplace.requestStorage(request)
switchAccount(host)
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await token.approve(marketplace.address, request.ask.collateral)
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})
async function waitUntilProofIsRequired(id) {
await advanceTimeToForNextBlock(periodEnd(periodOf(await currentTime())))
await mine()
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while (
!(
(await marketplace.isProofRequired(id)) &&
(await marketplace.getPointer(id)) < 250
)
) {
await advanceTimeForNextBlock(period)
await mine()
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}
}
it("is 'Free' initially", async function () {
expect(await marketplace.slotState(slotId(slot))).to.equal(Free)
})
it("changes to 'Filled' when slot is filled", async function () {
await marketplace.fillSlot(slot.request, slot.index, proof)
expect(await marketplace.slotState(slotId(slot))).to.equal(Filled)
})
it("changes to 'Finished' when request finishes", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
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await waitUntilFinished(marketplace, slot.request)
await mine()
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expect(await marketplace.slotState(slotId(slot))).to.equal(Finished)
})
it("changes to 'Cancelled' when request is cancelled", async function () {
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await marketplace.fillSlot(slot.request, slot.index, proof)
await waitUntilCancelled(request)
await mine()
expect(await marketplace.slotState(slotId(slot))).to.equal(Cancelled)
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})
it("changes to 'Free' when host frees the slot", async function () {
await marketplace.fillSlot(slot.request, slot.index, proof)
await marketplace.freeSlot(slotId(slot))
expect(await marketplace.slotState(slotId(slot))).to.equal(Free)
})
it("changes to 'Free' when too many proofs are missed", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
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while ((await marketplace.slotState(slotId(slot))) === Filled) {
await waitUntilProofIsRequired(slotId(slot))
const missedPeriod = periodOf(await currentTime())
await advanceTimeForNextBlock(period)
await mine()
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await marketplace.markProofAsMissing(slotId(slot), missedPeriod)
}
expect(await marketplace.slotState(slotId(slot))).to.equal(Free)
})
it("changes to 'Failed' when request fails", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
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await waitUntilSlotFailed(marketplace, request, slot)
await mine()
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expect(await marketplace.slotState(slotId(slot))).to.equal(Failed)
})
it("changes to 'Paid' when host has been paid", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
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await waitUntilFinished(marketplace, slot.request)
await marketplace.freeSlot(slotId(slot))
expect(await marketplace.slotState(slotId(slot))).to.equal(Paid)
})
})
describe("proof requirements", function () {
let period, periodOf, periodEnd
beforeEach(async function () {
period = config.proofs.period
;({ periodOf, periodEnd } = periodic(period))
switchAccount(client)
await token.approve(marketplace.address, price(request))
await marketplace.requestStorage(request)
switchAccount(host)
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await token.approve(marketplace.address, request.ask.collateral)
})
async function waitUntilProofWillBeRequired(id) {
while (!(await marketplace.willProofBeRequired(id))) {
await mine()
}
}
async function waitUntilProofIsRequired(id) {
await advanceTimeToForNextBlock(periodEnd(periodOf(await currentTime())))
while (
!(
(await marketplace.isProofRequired(id)) &&
(await marketplace.getPointer(id)) < 250
)
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) {
await advanceTimeForNextBlock(period)
await mine()
}
}
it("requires proofs when slot is filled", async function () {
const id = slotId(slot)
await marketplace.fillSlot(slot.request, slot.index, proof)
await waitUntilProofWillBeRequired(id)
})
it("will not require proofs once cancelled", async function () {
const id = slotId(slot)
await marketplace.fillSlot(slot.request, slot.index, proof)
await waitUntilProofWillBeRequired(id)
await expect(await marketplace.willProofBeRequired(id)).to.be.true
await waitUntilCancelled(request)
await mine()
await expect(await marketplace.willProofBeRequired(id)).to.be.false
})
it("does not require proofs once cancelled", async function () {
const id = slotId(slot)
await marketplace.fillSlot(slot.request, slot.index, proof)
await waitUntilProofIsRequired(id)
await expect(await marketplace.isProofRequired(id)).to.be.true
await waitUntilCancelled(request)
await mine()
await expect(await marketplace.isProofRequired(id)).to.be.false
})
it("does not provide challenges once cancelled", async function () {
const id = slotId(slot)
await marketplace.fillSlot(slot.request, slot.index, proof)
await waitUntilProofIsRequired(id)
await mine()
const challenge1 = await marketplace.getChallenge(id)
expect(BigNumber.from(challenge1).gt(0))
await waitUntilCancelled(request)
await mine()
const challenge2 = await marketplace.getChallenge(id)
expect(BigNumber.from(challenge2).isZero())
})
it("does not provide pointer once cancelled", async function () {
const id = slotId(slot)
await marketplace.fillSlot(slot.request, slot.index, proof)
await waitUntilProofIsRequired(id)
await mine()
const challenge1 = await marketplace.getChallenge(id)
expect(BigNumber.from(challenge1).gt(0))
await waitUntilCancelled(request)
await mine()
const challenge2 = await marketplace.getChallenge(id)
expect(BigNumber.from(challenge2).isZero())
})
})
describe("missing proofs", function () {
let period, periodOf, periodEnd
beforeEach(async function () {
period = config.proofs.period
;({ periodOf, periodEnd } = periodic(period))
switchAccount(client)
await token.approve(marketplace.address, price(request))
await marketplace.requestStorage(request)
switchAccount(host)
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await token.approve(marketplace.address, request.ask.collateral)
})
async function waitUntilProofIsRequired(id) {
await advanceTimeToForNextBlock(periodEnd(periodOf(await currentTime())))
await mine()
while (
!(
(await marketplace.isProofRequired(id)) &&
(await marketplace.getPointer(id)) < 250
)
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) {
await advanceTimeForNextBlock(period)
await mine()
}
}
it("fails to mark proof as missing when cancelled", async function () {
await marketplace.fillSlot(slot.request, slot.index, proof)
await waitUntilCancelled(request)
let missedPeriod = periodOf(await currentTime())
await expect(
marketplace.markProofAsMissing(slotId(slot), missedPeriod)
).to.be.revertedWith("Slot not accepting proofs")
})
describe("slashing when missing proofs", function () {
it("reduces collateral when too many proofs are missing", async function () {
const id = slotId(slot)
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const { slashCriterion, slashPercentage } = config.collateral
await marketplace.fillSlot(slot.request, slot.index, proof)
for (let i = 0; i < slashCriterion; i++) {
await waitUntilProofIsRequired(id)
let missedPeriod = periodOf(await currentTime())
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await advanceTimeForNextBlock(period + 1)
await marketplace.markProofAsMissing(id, missedPeriod)
}
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const expectedBalance =
(request.ask.collateral * (100 - slashPercentage)) / 100
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expect(
BigNumber.from(expectedBalance).eq(
await marketplace.getSlotCollateral(id)
)
)
})
})
it("frees slot when collateral slashed below minimum threshold", async function () {
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const minimum =
request.ask.collateral -
(request.ask.collateral *
config.collateral.maxNumberOfSlashes *
config.collateral.slashPercentage) /
100
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await waitUntilStarted(marketplace, request, proof, token)
while ((await marketplace.slotState(slotId(slot))) === SlotState.Filled) {
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expect(await marketplace.getSlotCollateral(slotId(slot))).to.be.gt(
minimum
)
await waitUntilProofIsRequired(slotId(slot))
const missedPeriod = periodOf(await currentTime())
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await advanceTimeForNextBlock(period + 1)
await marketplace.markProofAsMissing(slotId(slot), missedPeriod)
}
expect(await marketplace.slotState(slotId(slot))).to.equal(SlotState.Free)
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expect(await marketplace.getSlotCollateral(slotId(slot))).to.be.lte(
minimum
)
})
it("free slot when minimum reached and resets missed proof counter", async function () {
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const minimum =
request.ask.collateral -
(request.ask.collateral *
config.collateral.maxNumberOfSlashes *
config.collateral.slashPercentage) /
100
await waitUntilStarted(marketplace, request, proof, token)
let missedProofs = 0
while ((await marketplace.slotState(slotId(slot))) === SlotState.Filled) {
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expect(await marketplace.getSlotCollateral(slotId(slot))).to.be.gt(
minimum
)
await waitUntilProofIsRequired(slotId(slot))
const missedPeriod = periodOf(await currentTime())
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await advanceTimeForNextBlock(period + 1)
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expect(await marketplace.missingProofs(slotId(slot))).to.equal(
missedProofs
)
await marketplace.markProofAsMissing(slotId(slot), missedPeriod)
missedProofs += 1
}
expect(await marketplace.slotState(slotId(slot))).to.equal(SlotState.Free)
expect(await marketplace.missingProofs(slotId(slot))).to.equal(0)
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expect(await marketplace.getSlotCollateral(slotId(slot))).to.be.lte(
minimum
)
})
})
describe("list of active requests", function () {
beforeEach(async function () {
switchAccount(host)
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await token.approve(marketplace.address, request.ask.collateral)
switchAccount(client)
await token.approve(marketplace.address, price(request))
})
it("adds request to list when requesting storage", async function () {
await marketplace.requestStorage(request)
expect(await marketplace.myRequests()).to.deep.equal([requestId(request)])
})
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it("keeps request in list when cancelled", async function () {
await marketplace.requestStorage(request)
await waitUntilCancelled(request)
await mine()
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expect(await marketplace.myRequests()).to.deep.equal([requestId(request)])
})
it("removes request from list when funds are withdrawn", async function () {
await marketplace.requestStorage(request)
await waitUntilCancelled(request)
await marketplace.withdrawFunds(requestId(request))
expect(await marketplace.myRequests()).to.deep.equal([])
})
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it("keeps request in list when request fails", async function () {
await marketplace.requestStorage(request)
switchAccount(host)
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await waitUntilStarted(marketplace, request, proof, token)
await waitUntilFailed(marketplace, request)
await mine()
switchAccount(client)
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expect(await marketplace.myRequests()).to.deep.equal([requestId(request)])
})
it("removes request from list when request finishes", async function () {
await marketplace.requestStorage(request)
switchAccount(host)
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await waitUntilStarted(marketplace, request, proof, token)
await waitUntilFinished(marketplace, requestId(request))
await marketplace.freeSlot(slotId(slot))
switchAccount(client)
expect(await marketplace.myRequests()).to.deep.equal([])
})
})
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describe("list of active slots", function () {
beforeEach(async function () {
switchAccount(client)
await token.approve(marketplace.address, price(request))
await marketplace.requestStorage(request)
switchAccount(host)
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await token.approve(marketplace.address, request.ask.collateral)
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})
it("adds slot to list when filling slot", async function () {
await marketplace.fillSlot(slot.request, slot.index, proof)
let slot1 = { ...slot, index: slot.index + 1 }
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await token.approve(marketplace.address, request.ask.collateral)
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await marketplace.fillSlot(slot.request, slot1.index, proof)
expect(await marketplace.mySlots()).to.have.members([
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slotId(slot),
slotId(slot1),
])
})
it("removes slot from list when slot is freed", async function () {
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await marketplace.fillSlot(slot.request, slot.index, proof)
let slot1 = { ...slot, index: slot.index + 1 }
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await token.approve(marketplace.address, request.ask.collateral)
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await marketplace.fillSlot(slot.request, slot1.index, proof)
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await token.approve(marketplace.address, request.ask.collateral)
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await marketplace.freeSlot(slotId(slot))
expect(await marketplace.mySlots()).to.have.members([slotId(slot1)])
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})
it("keeps slots when cancelled", async function () {
await marketplace.fillSlot(slot.request, slot.index, proof)
let slot1 = { ...slot, index: slot.index + 1 }
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await token.approve(marketplace.address, request.ask.collateral)
await marketplace.fillSlot(slot.request, slot1.index, proof)
await waitUntilCancelled(request)
await mine()
expect(await marketplace.mySlots()).to.have.members([
slotId(slot),
slotId(slot1),
])
})
it("removes slot when finished slot is freed", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
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await waitUntilFinished(marketplace, requestId(request))
await marketplace.freeSlot(slotId(slot))
expect(await marketplace.mySlots()).to.not.contain(slotId(slot))
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})
it("removes slot when cancelled slot is freed", async function () {
await marketplace.fillSlot(slot.request, slot.index, proof)
await waitUntilCancelled(request)
await marketplace.freeSlot(slotId(slot))
expect(await marketplace.mySlots()).to.not.contain(slotId(slot))
})
it("removes slot when failed slot is freed", async function () {
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await waitUntilStarted(marketplace, request, proof, token)
await waitUntilSlotFailed(marketplace, request, slot)
await marketplace.freeSlot(slotId(slot))
expect(await marketplace.mySlots()).to.not.contain(slotId(slot))
})
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})
})