[DRAFT] Deployment preparation: WeightedLPOracleFactory

v3/tasks/20250605-v3-weighted-lp-oracle/index.ts

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+import { WeightedLPOracleDeployment } from './input';
+import { Task, TaskRunOptions } from '@src';
+
+/* eslint-disable @typescript-eslint/no-non-null-assertion */
+export default async (task: Task, { force, from }: TaskRunOptions = {}): Promise<void> => {
+  const input = task.input() as WeightedLPOracleDeployment;
+
+  const args = [input.Vault, input.Version];
+  await task.deployAndVerify('WeightedLPOracleFactory', args, from, force);
+};

v3/tasks/20250605-v3-weighted-lp-oracle/input.ts

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+import { Task, TaskMode } from '@src';
+
+export type WeightedLPOracleDeployment = {
+  Vault: string;
+  Version: string;
+};
+
+const Vault = new Task('20241204-v3-vault', TaskMode.READ_ONLY);
+const Version = 1;
+
+export default {
+  Vault,
+  Version,
+};

v3/tasks/20250605-v3-weighted-lp-oracle/readme.md

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+# 2025-06-05 - V3 Weighted LP Oracle
+
+Contains `WeightedLPOracleFactory` //TODO
+
+
+## Useful Files
+
+- [Code](https://github.com/balancer/balancer-v3-monorepo/commit/TBD).
+- [`WeightedLPOracleFactory` artifact](./artifact/WeightedLPOracle.json)

v3/tasks/20250605-v3-weighted-lp-oracle/test/task.fork.ts

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+import hre from 'hardhat';
+import { Contract } from 'ethers';
+import * as expectEvent from '@helpers/expectEvent';
+import { describeForkTest, getForkedNetwork, getSigner, impersonate, Task, TaskMode } from '@src';
+import { fp } from '@helpers/numbers';
+import { WeightedLPOracleDeployment } from '../input';
+import { SignerWithAddress } from '@nomiclabs/hardhat-ethers/signers';
+import { expect } from 'chai';
+
+describeForkTest('WeightedLPOracle', 'mainnet', 22647247, function () {
+  let task: Task;
+  let input: WeightedLPOracleDeployment;
+  let weightedLPOracleFactory: Contract;
+  let authorizer: Contract;
+
+  const POOL = '0xecD2978447367eC0c944Af58C3B8a7b52Acfd7a4'; // 1ROR / WETH
+  const PRICE_FEED = [
+    // AAVE/USD price feed (we use AAVE because there is no 1ROR/USD price feed)
+    '0x547a514d5e3769680Ce22B2361c10Ea13619e8a9',
+    // ETH/USD price feed
+    '0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419',
+  ];
+  let admin: SignerWithAddress;
+
+  const GOV_MULTISIG = '0x10A19e7eE7d7F8a52822f6817de8ea18204F2e4f';
+
+  before('run task', async () => {
+    task = new Task('20250605-v3-weighted-lp-oracle', TaskMode.TEST, getForkedNetwork(hre));
+    await task.run({ force: true });
+  });
+
+  before('setup contracts and signers', async () => {
+    admin = await getSigner();
+
+    weightedLPOracleFactory = await task.deployedInstance('WeightedLPOracleFactory');
+
+    const authorizerTask = new Task('20210418-authorizer', TaskMode.READ_ONLY, getForkedNetwork(hre));
+    authorizer = await authorizerTask.deployedInstance('Authorizer');
+
+    const govMultisig = await impersonate(GOV_MULTISIG, fp(100));
+    await authorizer
+      .connect(govMultisig)
+      .grantRole(
+        await weightedLPOracleFactory.getActionId(weightedLPOracleFactory.interface.getSighash('create')),
+        admin.address
+      );
+
+    input = task.input() as WeightedLPOracleDeployment;
+  });
+
+  it('should deploy WeightedLPOracleFactory', async () => {
+    const receipt = await (await weightedLPOracleFactory.connect(admin).create(POOL, PRICE_FEED)).wait();
+    const event = expectEvent.inReceipt(receipt, 'WeightedLPOracleCreated');
+    const oracleAddress = event.args.oracle;
+
+    const oracle = await task.instanceAt('WeightedLPOracle', oracleAddress);
+    expect((await oracle.latestRoundData()).answer > BigInt(0)).to.be.true;
+  });
+});