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vrfCoordinator.test.ts
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import chai from "chai";
import chaiAsPromised from "chai-as-promised";
import { randomBytes } from "crypto";
import { PACKAGE_NAME } from "../src/shared/constants";
import { Task, VRFSubtask } from "../src/shared/enums";
import { useEnvironment } from "./helpers";
chai.use(chaiAsPromised);
const { expect } = chai;
describe("Test chainlink:vrf module", function () {
const TYPE_AND_VERSION = "VRFCoordinatorV2 1.0.0";
const MAX_CONSUMERS = 100;
const MAX_REQUEST_CONFIRMATIONS = 200;
const MAX_NUM_WORDS = 500;
const MINIMUM_REQUEST_CONFIRMATIONS = 3;
const MAX_GAS_LIMIT = 2_500_000;
const STALENESS_SECONDS = 2_700;
const GAS_AFTER_PAYMENT_CALCULATION = 33_285;
const MIN_REQUEST_CONFIRMATIONS = 3;
const MAX_REQUEST_GAS_LIMIT = 2_500_000;
const FALLBACK_WEI_PER_UNIT_LINK = 1_000;
const FULFILLMENT_FLAT_FEE_LINK_PPM_TIER = 250_000;
const REQS_FOR_TIER = 0;
const SUBSCRIPTION_BALANCE = 50_000;
const KEY_HASH = randomBytes(32);
const DECIMALS = 18;
const INITIAL_ANSWER = 1_000;
function beforeShared() {
return async function (this: Mocha.Context) {
const ethers = this.hre.ethers;
this.linkToken = await (
await ethers.getContractFactory("LinkToken")
).deploy();
this.blockhashStore = await (
await ethers.getContractFactory("BlockhashStore")
).deploy();
this.dataFeed = await (
await ethers.getContractFactory("MockV3Aggregator")
).deploy(DECIMALS, INITIAL_ANSWER);
this.vrf = await (
await ethers.getContractFactory("VRFCoordinatorV2")
).deploy(
this.linkToken.address,
this.dataFeed.address,
this.blockhashStore.address
);
await this.vrf.setConfig(
MINIMUM_REQUEST_CONFIRMATIONS,
MAX_GAS_LIMIT,
STALENESS_SECONDS,
GAS_AFTER_PAYMENT_CALCULATION,
FALLBACK_WEI_PER_UNIT_LINK,
{
fulfillmentFlatFeeLinkPPMTier1: FULFILLMENT_FLAT_FEE_LINK_PPM_TIER,
fulfillmentFlatFeeLinkPPMTier2: FULFILLMENT_FLAT_FEE_LINK_PPM_TIER,
fulfillmentFlatFeeLinkPPMTier3: FULFILLMENT_FLAT_FEE_LINK_PPM_TIER,
fulfillmentFlatFeeLinkPPMTier4: FULFILLMENT_FLAT_FEE_LINK_PPM_TIER,
fulfillmentFlatFeeLinkPPMTier5: FULFILLMENT_FLAT_FEE_LINK_PPM_TIER,
reqsForTier2: REQS_FOR_TIER,
reqsForTier3: REQS_FOR_TIER,
reqsForTier4: REQS_FOR_TIER,
reqsForTier5: REQS_FOR_TIER,
}
);
};
}
describe("Run methods as hre methods", function () {
useEnvironment("hardhat-chainlink");
before(beforeShared());
it("Creates subscription", async function () {
const { subscriptionId, transactionHash } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
expect(transactionHash).not.to.be.undefined;
expect(subscriptionId.toString()).to.eq("1");
});
it("Funds subscription", async function () {
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
const { transactionHash } = await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
expect(transactionHash).not.to.be.undefined;
});
it("Cancels subscription", async function () {
const [signer] = await this.hre.ethers.getSigners();
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
const { transactionHash } =
await this.hre.chainlink.vrf.cancelSubscription(
this.vrf.address,
subscriptionId,
signer.address
);
expect(transactionHash).not.to.be.undefined;
});
it("Adds consumer", async function () {
const [signer] = await this.hre.ethers.getSigners();
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
const { transactionHash } = await this.hre.chainlink.vrf.addConsumer(
this.vrf.address,
signer.address,
subscriptionId
);
expect(transactionHash).not.to.be.undefined;
});
it("Removes consumer", async function () {
const [signer] = await this.hre.ethers.getSigners();
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
await this.hre.chainlink.vrf.addConsumer(
this.vrf.address,
signer.address,
subscriptionId
);
const { transactionHash } = await this.hre.chainlink.vrf.removeConsumer(
this.vrf.address,
signer.address,
subscriptionId
);
expect(transactionHash).not.to.be.undefined;
});
it("Requests random words", async function () {
const [signer] = await this.hre.ethers.getSigners();
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
await this.hre.chainlink.vrf.addConsumer(
this.vrf.address,
signer.address,
subscriptionId
);
const { transactionHash } =
await this.hre.chainlink.vrf.requestRandomWords(
this.vrf.address,
KEY_HASH,
subscriptionId,
MAX_REQUEST_CONFIRMATIONS,
MAX_GAS_LIMIT,
MAX_NUM_WORDS
);
expect(transactionHash).not.to.be.undefined;
});
it("Checks if pending request not exists", async function () {
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
const isPendingRequestExists =
await this.hre.chainlink.vrf.isPendingRequestExists(
this.vrf.address,
subscriptionId
);
expect(isPendingRequestExists).to.eq(false);
});
it("Gets subscription details", async function () {
const [signer] = await this.hre.ethers.getSigners();
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
await this.hre.chainlink.vrf.addConsumer(
this.vrf.address,
signer.address,
subscriptionId
);
const { balance, reqCount, owner, consumers } =
await this.hre.chainlink.vrf.getSubscriptionDetails(
this.vrf.address,
subscriptionId
);
expect(balance.toString()).to.eq(SUBSCRIPTION_BALANCE.toString());
expect(reqCount.toString()).to.eq("0".toString());
expect(owner).to.eq(signer.address);
expect(consumers.length).to.eq(1);
expect(consumers[0]).to.eq(signer.address);
});
it("Requests subscriptions owner transfer", async function () {
const [_, newOwner] = await this.hre.ethers.getSigners();
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.requestSubscriptionOwnerTransfer(
this.vrf.address,
subscriptionId,
newOwner.address
);
await this.vrf
.connect(newOwner)
.acceptSubscriptionOwnerTransfer(subscriptionId);
const { owner: subscriptionOwner } =
await this.hre.chainlink.vrf.getSubscriptionDetails(
this.vrf.address,
subscriptionId
);
expect(subscriptionOwner).to.eq(newOwner.address);
});
it("Accepts subscriptions owner transfer", async function () {
const [newOwner, owner] = await this.hre.ethers.getSigners();
const tx = await this.vrf.connect(owner).createSubscription();
const txReceipt = await tx.wait(this.hre.config.chainlink.confirmations);
const subscriptionId = BigNumber.from(txReceipt.events[0].topics[1]);
await this.vrf
.connect(owner)
.requestSubscriptionOwnerTransfer(
subscriptionId.toString(),
newOwner.address
);
await this.hre.chainlink.vrf.acceptSubscriptionOwnerTransfer(
this.vrf.address,
subscriptionId
);
const { owner: subscriptionOwner } =
await this.hre.chainlink.vrf.getSubscriptionDetails(
this.vrf.address,
subscriptionId
);
expect(subscriptionOwner).to.eq(newOwner.address);
});
it("Gets config", async function () {
const {
minimumRequestConfirmations,
maxGasLimit,
stalenessSeconds,
gasAfterPaymentCalculation,
} = await this.hre.chainlink.vrf.getConfig(this.vrf.address);
expect(minimumRequestConfirmations).to.eq(MINIMUM_REQUEST_CONFIRMATIONS);
expect(maxGasLimit).to.eq(MAX_GAS_LIMIT);
expect(stalenessSeconds).to.eq(STALENESS_SECONDS);
expect(gasAfterPaymentCalculation).to.eq(GAS_AFTER_PAYMENT_CALCULATION);
});
it("Gets min request confirmations", async function () {
const minRequestConfirmations =
await this.hre.chainlink.vrf.getMinRequestConfirmations(
this.vrf.address
);
expect(minRequestConfirmations).to.eq(MIN_REQUEST_CONFIRMATIONS);
});
it("Gets max request gas limit", async function () {
const maxRequestGasLimit =
await this.hre.chainlink.vrf.getMaxRequestGasLimit(this.vrf.address);
expect(maxRequestGasLimit).to.eq(MAX_REQUEST_GAS_LIMIT);
});
it("Gets max consumers", async function () {
const maxConsumers = await this.hre.chainlink.vrf.getMaxConsumers(
this.vrf.address
);
expect(maxConsumers).to.eq(MAX_CONSUMERS);
});
it("Gets max number of words", async function () {
const maxNumberOfWords = await this.hre.chainlink.vrf.getMaxNumberOfWords(
this.vrf.address
);
expect(maxNumberOfWords).to.eq(MAX_NUM_WORDS);
});
it("Gets max request confirmations", async function () {
const maxRequestConfirmations =
await this.hre.chainlink.vrf.getMaxRequestConfirmations(
this.vrf.address
);
expect(maxRequestConfirmations).to.eq(MAX_REQUEST_CONFIRMATIONS);
});
it("Gets type and version", async function () {
const typeAndVersion = await this.hre.chainlink.vrf.getTypeAndVersion(
this.vrf.address
);
expect(typeAndVersion).to.eq(TYPE_AND_VERSION);
});
});
describe("Run methods as hre subtasks", function () {
useEnvironment("hardhat-chainlink");
before(beforeShared());
it("Creates subscription", async function () {
const { transactionHash, subscriptionId } = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}:${VRFSubtask.createSubscription}`,
{
vrfCoordinatorAddress: this.vrf.address,
}
);
expect(transactionHash).not.to.be.undefined;
expect(subscriptionId.toString()).to.eq("1");
});
it("Funds subscription", async function () {
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
const { transactionHash } = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}:${VRFSubtask.fundSubscription}`,
{
vrfCoordinatorAddress: this.vrf.address,
linkTokenAddress: this.linkToken.address,
amountInJuels: SUBSCRIPTION_BALANCE.toString(),
subscriptionId: subscriptionId.toString(),
}
);
expect(transactionHash).not.to.be.undefined;
});
it("Cancels subscription", async function () {
const [signer] = await this.hre.ethers.getSigners();
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
const { transactionHash } = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}:${VRFSubtask.cancelSubscription}`,
{
vrfCoordinatorAddress: this.vrf.address,
subscriptionId: subscriptionId.toString(),
receivingAddress: signer.address,
}
);
expect(transactionHash).not.to.be.undefined;
});
it("Adds consumer", async function () {
const [signer] = await this.hre.ethers.getSigners();
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
const { transactionHash } = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}:${VRFSubtask.addConsumer}`,
{
vrfCoordinatorAddress: this.vrf.address,
consumerAddress: signer.address,
subscriptionId: subscriptionId.toString(),
}
);
expect(transactionHash).not.to.be.undefined;
});
it("Removes consumer", async function () {
const [signer] = await this.hre.ethers.getSigners();
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
await this.hre.chainlink.vrf.addConsumer(
this.vrf.address,
signer.address,
subscriptionId
);
const { transactionHash } = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}:${VRFSubtask.removeConsumer}`,
{
vrfCoordinatorAddress: this.vrf.address,
consumerAddress: signer.address,
subscriptionId: subscriptionId.toString(),
}
);
expect(transactionHash).not.to.be.undefined;
});
it("Requests random words", async function () {
const [signer] = await this.hre.ethers.getSigners();
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
await this.hre.chainlink.vrf.addConsumer(
this.vrf.address,
signer.address,
subscriptionId
);
const { transactionHash } = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}:${VRFSubtask.requestRandomWords}`,
{
vrfCoordinatorAddress: this.vrf.address,
keyHash: `0x${KEY_HASH.toString("hex")}`,
subscriptionId: subscriptionId.toString(),
requestConfirmations: MAX_REQUEST_CONFIRMATIONS.toString(),
callbackGasLimit: MAX_GAS_LIMIT.toString(),
numWords: MAX_NUM_WORDS.toString(),
}
);
expect(transactionHash).not.to.be.undefined;
});
it("Checks if pending request not exists", async function () {
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
const isPendingRequestExists = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}:${VRFSubtask.isPendingRequestExists}`,
{
vrfCoordinatorAddress: this.vrf.address,
subscriptionId: subscriptionId.toString(),
}
);
expect(isPendingRequestExists).to.eq(false);
});
it("Gets subscription details", async function () {
const [signer] = await this.hre.ethers.getSigners();
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
await this.hre.chainlink.vrf.addConsumer(
this.vrf.address,
signer.address,
subscriptionId
);
const { balance, reqCount, owner, consumers } = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}:${VRFSubtask.getSubscriptionDetails}`,
{
vrfCoordinatorAddress: this.vrf.address,
subscriptionId: subscriptionId.toString(),
}
);
expect(balance.toString()).to.eq(SUBSCRIPTION_BALANCE.toString());
expect(reqCount.toString()).to.eq("0".toString());
expect(owner).to.eq(signer.address);
expect(consumers.length).to.eq(1);
expect(consumers[0]).to.eq(signer.address);
});
it("Requests subscriptions owner transfer", async function () {
const [_, newOwner] = await this.hre.ethers.getSigners();
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}:${VRFSubtask.requestSubscriptionOwnerTransfer}`,
{
vrfCoordinatorAddress: this.vrf.address,
subscriptionId: subscriptionId.toString(),
newOwnerAddress: newOwner.address,
}
);
await this.vrf
.connect(newOwner)
.acceptSubscriptionOwnerTransfer(subscriptionId);
const { owner: subscriptionOwner } =
await this.hre.chainlink.vrf.getSubscriptionDetails(
this.vrf.address,
subscriptionId
);
expect(subscriptionOwner).to.eq(newOwner.address);
});
it("Accepts subscriptions owner transfer", async function () {
const [newOwner, owner] = await this.hre.ethers.getSigners();
const tx = await this.vrf.connect(owner).createSubscription();
const txReceipt = await tx.wait(this.hre.config.chainlink.confirmations);
const subscriptionId = BigNumber.from(txReceipt.events[0].topics[1]);
await this.vrf
.connect(owner)
.requestSubscriptionOwnerTransfer(
subscriptionId.toString(),
newOwner.address
);
await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}:${VRFSubtask.acceptSubscriptionOwnerTransfer}`,
{
vrfCoordinatorAddress: this.vrf.address,
subscriptionId: subscriptionId.toString(),
}
);
const { owner: subscriptionOwner } =
await this.hre.chainlink.vrf.getSubscriptionDetails(
this.vrf.address,
subscriptionId
);
expect(subscriptionOwner).to.eq(newOwner.address);
});
it("Gets config", async function () {
const {
minimumRequestConfirmations,
maxGasLimit,
stalenessSeconds,
gasAfterPaymentCalculation,
} = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}:${VRFSubtask.getConfig}`,
{
vrfCoordinatorAddress: this.vrf.address,
}
);
expect(minimumRequestConfirmations).to.eq(MINIMUM_REQUEST_CONFIRMATIONS);
expect(maxGasLimit).to.eq(MAX_GAS_LIMIT);
expect(stalenessSeconds).to.eq(STALENESS_SECONDS);
expect(gasAfterPaymentCalculation).to.eq(GAS_AFTER_PAYMENT_CALCULATION);
});
it("Gets min request confirmations", async function () {
const minRequestConfirmations = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}:${VRFSubtask.getMinRequestConfirmations}`,
{
vrfCoordinatorAddress: this.vrf.address,
}
);
expect(minRequestConfirmations).to.eq(MIN_REQUEST_CONFIRMATIONS);
});
it("Gets max request gas limit", async function () {
const maxRequestGasLimit = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}:${VRFSubtask.getMaxRequestGasLimit}`,
{
vrfCoordinatorAddress: this.vrf.address,
}
);
expect(maxRequestGasLimit).to.eq(MAX_REQUEST_GAS_LIMIT);
});
it("Gets max consumers", async function () {
const maxConsumers = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}:${VRFSubtask.getMaxConsumers}`,
{
vrfCoordinatorAddress: this.vrf.address,
}
);
expect(maxConsumers).to.eq(MAX_CONSUMERS);
});
it("Gets max number of words", async function () {
const maxNumberOfWords = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}:${VRFSubtask.getMaxNumberOfWords}`,
{
vrfCoordinatorAddress: this.vrf.address,
}
);
expect(maxNumberOfWords).to.eq(MAX_NUM_WORDS);
});
it("Gets max request confirmations", async function () {
const maxRequestConfirmations = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}:${VRFSubtask.getMaxRequestConfirmations}`,
{
vrfCoordinatorAddress: this.vrf.address,
}
);
expect(maxRequestConfirmations).to.eq(MAX_REQUEST_CONFIRMATIONS);
});
it("Gets type and version", async function () {
const typeAndVersion = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}:${VRFSubtask.getTypeAndVersion}`,
{
vrfCoordinatorAddress: this.vrf.address,
}
);
expect(typeAndVersion).to.eq(TYPE_AND_VERSION);
});
});
describe("Run methods as subtasks of a hre task", function () {
useEnvironment("hardhat-chainlink");
before(beforeShared());
it("Creates subscription", async function () {
const { transactionHash, subscriptionId } = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}`,
{
subtask: VRFSubtask.createSubscription,
args: JSON.stringify({
vrfCoordinatorAddress: this.vrf.address,
}),
}
);
expect(transactionHash).not.to.be.undefined;
expect(subscriptionId.toString()).to.eq("1");
});
it("Funds subscription", async function () {
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
const { transactionHash } = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}`,
{
subtask: VRFSubtask.fundSubscription,
args: JSON.stringify({
vrfCoordinatorAddress: this.vrf.address,
linkTokenAddress: this.linkToken.address,
amountInJuels: SUBSCRIPTION_BALANCE.toString(),
subscriptionId: subscriptionId.toString(),
}),
}
);
expect(transactionHash).not.to.be.undefined;
});
it("Cancels subscription", async function () {
const [signer] = await this.hre.ethers.getSigners();
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
const { transactionHash } = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}`,
{
subtask: VRFSubtask.cancelSubscription,
args: JSON.stringify({
vrfCoordinatorAddress: this.vrf.address,
subscriptionId: subscriptionId.toString(),
receivingAddress: signer.address,
}),
}
);
expect(transactionHash).not.to.be.undefined;
});
it("Adds consumer", async function () {
const [signer] = await this.hre.ethers.getSigners();
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
const { transactionHash } = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}`,
{
subtask: VRFSubtask.addConsumer,
args: JSON.stringify({
vrfCoordinatorAddress: this.vrf.address,
consumerAddress: signer.address,
subscriptionId: subscriptionId.toString(),
}),
}
);
expect(transactionHash).not.to.be.undefined;
});
it("Removes consumer", async function () {
const [signer] = await this.hre.ethers.getSigners();
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
await this.hre.chainlink.vrf.addConsumer(
this.vrf.address,
signer.address,
subscriptionId
);
const { transactionHash } = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}`,
{
subtask: VRFSubtask.removeConsumer,
args: JSON.stringify({
vrfCoordinatorAddress: this.vrf.address,
consumerAddress: signer.address,
subscriptionId: subscriptionId.toString(),
}),
}
);
expect(transactionHash).not.to.be.undefined;
});
it("Requests random words", async function () {
const [signer] = await this.hre.ethers.getSigners();
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
await this.hre.chainlink.vrf.addConsumer(
this.vrf.address,
signer.address,
subscriptionId
);
const { transactionHash } = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}`,
{
subtask: VRFSubtask.requestRandomWords,
args: JSON.stringify({
vrfCoordinatorAddress: this.vrf.address,
keyHash: `0x${KEY_HASH.toString("hex")}`,
subscriptionId: subscriptionId.toString(),
requestConfirmations: MAX_REQUEST_CONFIRMATIONS.toString(),
callbackGasLimit: MAX_GAS_LIMIT.toString(),
numWords: MAX_NUM_WORDS.toString(),
}),
}
);
expect(transactionHash).not.to.be.undefined;
});
it("Checks if pending request not exists", async function () {
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
const isPendingRequestExists = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}`,
{
subtask: VRFSubtask.isPendingRequestExists,
args: JSON.stringify({
vrfCoordinatorAddress: this.vrf.address,
subscriptionId: subscriptionId.toString(),
}),
}
);
expect(isPendingRequestExists).to.eq(false);
});
it("Gets subscription details", async function () {
const [signer] = await this.hre.ethers.getSigners();
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.chainlink.vrf.fundSubscription(
this.vrf.address,
this.linkToken.address,
SUBSCRIPTION_BALANCE,
subscriptionId
);
await this.hre.chainlink.vrf.addConsumer(
this.vrf.address,
signer.address,
subscriptionId
);
const { balance, reqCount, owner, consumers } = await this.hre.run(
`${PACKAGE_NAME}:${Task.vrf}`,
{
subtask: VRFSubtask.getSubscriptionDetails,
args: JSON.stringify({
vrfCoordinatorAddress: this.vrf.address,
subscriptionId: subscriptionId.toString(),
}),
}
);
expect(balance.toString()).to.eq(SUBSCRIPTION_BALANCE.toString());
expect(reqCount.toString()).to.eq("0".toString());
expect(owner).to.eq(signer.address);
expect(consumers.length).to.eq(1);
expect(consumers[0]).to.eq(signer.address);
});
it("Requests subscriptions owner transfer", async function () {
const [_, newOwner] = await this.hre.ethers.getSigners();
const { subscriptionId } =
await this.hre.chainlink.vrf.createSubscription(this.vrf.address);
await this.hre.run(`${PACKAGE_NAME}:${Task.vrf}`, {
subtask: VRFSubtask.requestSubscriptionOwnerTransfer,
args: JSON.stringify({
vrfCoordinatorAddress: this.vrf.address,
subscriptionId: subscriptionId.toString(),
newOwnerAddress: newOwner.address,
}),
});
await this.vrf
.connect(newOwner)
.acceptSubscriptionOwnerTransfer(subscriptionId);
const { owner: subscriptionOwner } =
await this.hre.chainlink.vrf.getSubscriptionDetails(
this.vrf.address,
subscriptionId
);
expect(subscriptionOwner).to.eq(newOwner.address);
});
it("Accepts subscriptions owner transfer", async function () {
const [newOwner, owner] = await this.hre.ethers.getSigners();
const tx = await this.vrf.connect(owner).createSubscription();
const txReceipt = await tx.wait(this.hre.config.chainlink.confirmations);
const subscriptionId = BigNumber.from(txReceipt.events[0].topics[1]);
await this.vrf
.connect(owner)
.requestSubscriptionOwnerTransfer(
subscriptionId.toString(),
newOwner.address
);
await this.hre.run(`${PACKAGE_NAME}:${Task.vrf}`, {
subtask: VRFSubtask.acceptSubscriptionOwnerTransfer,
args: JSON.stringify({
vrfCoordinatorAddress: this.vrf.address,
subscriptionId: subscriptionId.toString(),
}),
});