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309 lines
9.9 KiB
309 lines
9.9 KiB
const { waffle, ethers } = require('hardhat');
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const { provider, deployMockContract } = waffle;
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const { expect } = require('chai');
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const testUtils = require('./utils');
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const { testCases } = require('../../vectors/merkleTestCases.json');
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const MockRecipient = require('../artifacts/contracts/test/MockRecipient.sol/MockRecipient.json');
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const originDomain = 1000;
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const ownDomain = 2000;
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const optimisticSeconds = 3;
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const initialCurrentRoot = ethers.utils.formatBytes32String('current');
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const initialLastProcessed = 0;
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const mockRecipientMessageString = 'message received';
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describe('Replica', async () => {
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let replica, signer, fakeSigner, updater, fakeUpdater, processor;
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const enqueueValidUpdate = async (newRoot) => {
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let oldRoot;
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if ((await replica.queueLength()) == 0) {
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oldRoot = await replica.current();
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} else {
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const lastEnqueued = await replica.queueEnd();
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oldRoot = lastEnqueued;
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}
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const { signature } = await updater.signUpdate(oldRoot, newRoot);
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await replica.update(oldRoot, newRoot, signature);
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};
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before(async () => {
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[signer, fakeSigner, processor] = provider.getWallets();
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updater = await optics.Updater.fromSigner(signer, originDomain);
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fakeUpdater = await optics.Updater.fromSigner(fakeSigner, originDomain);
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});
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beforeEach(async () => {
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const Replica = await ethers.getContractFactory('TestReplica');
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replica = await Replica.deploy(
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originDomain,
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ownDomain,
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updater.signer.address,
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optimisticSeconds,
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initialCurrentRoot,
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initialLastProcessed,
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);
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await replica.deployed();
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});
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it('Halts on fail', async () => {
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await replica.setFailed();
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expect(await replica.state()).to.equal(optics.State.FAILED);
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const newRoot = ethers.utils.formatBytes32String('new root');
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await expect(enqueueValidUpdate(newRoot)).to.be.revertedWith(
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'failed state',
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);
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});
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it('Enqueues pending updates', async () => {
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const firstNewRoot = ethers.utils.formatBytes32String('first new root');
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await enqueueValidUpdate(firstNewRoot);
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expect(await replica.queueEnd()).to.equal(firstNewRoot);
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const secondNewRoot = ethers.utils.formatBytes32String('second next root');
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await enqueueValidUpdate(secondNewRoot);
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expect(await replica.queueEnd()).to.equal(secondNewRoot);
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});
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it('Returns the earliest pending update', async () => {
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const firstNewRoot = ethers.utils.formatBytes32String('first new root');
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await enqueueValidUpdate(firstNewRoot);
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const beforeTimestamp = await replica.timestamp();
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const secondNewRoot = ethers.utils.formatBytes32String('second next root');
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await enqueueValidUpdate(secondNewRoot);
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const [pending, confirmAt] = await replica.nextPending();
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expect(pending).to.equal(firstNewRoot);
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expect(confirmAt).to.equal(beforeTimestamp.add(optimisticSeconds));
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});
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it('Rejects update with invalid signature', async () => {
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const firstNewRoot = ethers.utils.formatBytes32String('first new root');
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await enqueueValidUpdate(firstNewRoot);
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const secondNewRoot = ethers.utils.formatBytes32String('second new root');
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const { signature: fakeSignature } = await fakeUpdater.signUpdate(
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firstNewRoot,
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secondNewRoot,
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);
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await expect(
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replica.update(firstNewRoot, secondNewRoot, fakeSignature),
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).to.be.revertedWith('bad sig');
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});
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it('Rejects initial update not building off initial root', async () => {
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const fakeInitialRoot = ethers.utils.formatBytes32String('fake root');
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const newRoot = ethers.utils.formatBytes32String('new root');
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const { signature } = await updater.signUpdate(fakeInitialRoot, newRoot);
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await expect(
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replica.update(fakeInitialRoot, newRoot, signature),
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).to.be.revertedWith('not current update');
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});
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it('Rejects updates not building off latest enqueued root', async () => {
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const firstNewRoot = ethers.utils.formatBytes32String('first new root');
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await enqueueValidUpdate(firstNewRoot);
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const fakeLatestRoot = ethers.utils.formatBytes32String('fake root');
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const secondNewRoot = ethers.utils.formatBytes32String('second new root');
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const { signature } = await updater.signUpdate(
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fakeLatestRoot,
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secondNewRoot,
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);
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await expect(
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replica.update(fakeLatestRoot, secondNewRoot, signature),
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).to.be.revertedWith('not end of queue');
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});
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it('Accepts a double update proof', async () => {
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const firstRoot = await replica.current();
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const secondRoot = ethers.utils.formatBytes32String('second root');
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const thirdRoot = ethers.utils.formatBytes32String('third root');
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const { signature } = await updater.signUpdate(firstRoot, secondRoot);
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const { signature: signature2 } = await updater.signUpdate(
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firstRoot,
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thirdRoot,
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);
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await expect(
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replica.doubleUpdate(
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firstRoot,
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[secondRoot, thirdRoot],
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signature,
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signature2,
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),
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).to.emit(replica, 'DoubleUpdate');
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expect(await replica.state()).to.equal(optics.State.FAILED);
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});
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it('Confirms a ready update', async () => {
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const newRoot = ethers.utils.formatBytes32String('new root');
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await enqueueValidUpdate(newRoot);
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await testUtils.increaseTimestampBy(provider, optimisticSeconds);
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await replica.confirm();
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expect(await replica.current()).to.equal(newRoot);
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});
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it('Batch-confirms several ready updates', async () => {
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const firstNewRoot = ethers.utils.formatBytes32String('first new root');
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await enqueueValidUpdate(firstNewRoot);
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const secondNewRoot = ethers.utils.formatBytes32String('second next root');
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await enqueueValidUpdate(secondNewRoot);
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// Increase time enough for both updates to be confirmable
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await testUtils.increaseTimestampBy(provider, optimisticSeconds * 2);
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await replica.confirm();
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expect(await replica.current()).to.equal(secondNewRoot);
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});
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it('Rejects an early confirmation attempt', async () => {
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const firstNewRoot = ethers.utils.formatBytes32String('first new root');
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await enqueueValidUpdate(firstNewRoot);
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// Don't increase time enough for update to be confirmable.
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// Note that we use optimisticSeconds - 2 because the call to enqueue
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// the valid root has already increased the timestamp by 1.
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await testUtils.increaseTimestampBy(provider, optimisticSeconds - 2);
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await expect(replica.confirm()).to.be.revertedWith('not time');
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});
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it('Proves a valid message', async () => {
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// Use 1st proof of 1st merkle vector test case
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const testCase = testCases[0];
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let { leaf, index, path } = testCase.proofs[0];
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await replica.setCurrentRoot(testCase.expectedRoot);
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// Ensure proper static call return value
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expect(await replica.callStatic.prove(leaf, path, index)).to.be.true;
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await replica.prove(leaf, path, index);
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expect(await replica.messages(leaf)).to.equal(optics.MessageStatus.PENDING);
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});
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it('Rejects invalid message proof', async () => {
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// Use 1st proof of 1st merkle vector test case
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const testCase = testCases[0];
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let { leaf, index, path } = testCase.proofs[0];
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// Switch ordering of proof hashes
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const firstHash = path[0];
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path[0] = path[1];
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path[1] = firstHash;
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await replica.setCurrentRoot(testCase.expectedRoot);
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expect(await replica.callStatic.prove(leaf, path, index)).to.be.false;
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await replica.prove(leaf, path, index);
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expect(await replica.messages(leaf)).to.equal(optics.MessageStatus.NONE);
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});
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it('Processes a proved message', async () => {
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const [sender, recipient] = provider.getWallets();
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const mockRecipient = await deployMockContract(
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recipient,
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MockRecipient.abi,
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);
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const mockVal = '0x1234abcd';
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await mockRecipient.mock.handle.returns(mockVal);
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const sequence = (await replica.lastProcessed()).add(1);
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const formattedMessage = optics.formatMessage(
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originDomain,
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sender.address,
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sequence,
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ownDomain,
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mockRecipient.address,
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'0x',
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);
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// Set message status to Message.Pending
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await replica.setMessagePending(formattedMessage);
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// Ensure proper static call return value
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let [success, ret] = await replica.callStatic.process(formattedMessage);
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expect(success).to.be.true;
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expect(ret).to.equal(mockVal);
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await replica.process(formattedMessage);
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expect(await replica.lastProcessed()).to.equal(sequence);
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});
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it('Fails to process an unproved message', async () => {
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const [sender, recipient] = provider.getWallets();
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const sequence = (await replica.lastProcessed()).add(1);
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const body = ethers.utils.formatBytes32String('message');
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const formattedMessage = optics.formatMessage(
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originDomain,
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sender.address,
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sequence,
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ownDomain,
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recipient.address,
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body,
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);
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await expect(replica.process(formattedMessage)).to.be.revertedWith(
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'not pending',
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);
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});
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it('Fails to process out-of-order message', async () => {
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const [sender, recipient] = provider.getWallets();
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// Skip sequence ordering by adding 2 to lastProcessed
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const sequence = (await replica.lastProcessed()).add(2);
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const body = ethers.utils.formatBytes32String('message');
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const formattedMessage = optics.formatMessage(
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originDomain,
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sender.address,
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sequence,
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ownDomain,
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recipient.address,
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body,
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);
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await expect(replica.process(formattedMessage)).to.be.revertedWith(
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'!sequence',
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);
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});
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it('Fails to process message with wrong destination Domain', async () => {
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const [sender, recipient] = provider.getWallets();
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const sequence = (await replica.lastProcessed()).add(1);
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const body = ethers.utils.formatBytes32String('message');
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const formattedMessage = optics.formatMessage(
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originDomain,
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sender.address,
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sequence,
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// Wrong destination Domain
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ownDomain + 5,
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recipient.address,
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body,
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);
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await expect(replica.process(formattedMessage)).to.be.revertedWith(
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'!destination',
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);
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});
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});
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