@waku/rln/dist/contract/test_setup.js

RLN (Rate Limiting Nullifier) implementation for Waku

import { hexToBytes } from "@waku/utils/bytes";
import { ethers } from "ethers";
import sinon from "sinon";
import { createRLN } from "../create.js";
import { DEFAULT_RATE_LIMIT, RLN_CONTRACT } from "./constants.js";
import { RLNContract } from "./rln_contract.js";
/**
 * Creates a test RLN instance with basic setup
 */
export async function createTestRLNInstance() {
    const rlnInstance = await createRLN();
    const insertMemberSpy = sinon.stub();
    rlnInstance.zerokit.insertMember = insertMemberSpy;
    const mockSignature = "0xdeb8a6b00a8e404deb1f52d3aa72ed7f60a2ff4484c737eedaef18a0aacb2dfb4d5d74ac39bb71fa358cf2eb390565a35b026cc6272f2010d4351e17670311c21c";
    const identity = rlnInstance.zerokit.generateSeededIdentityCredential(mockSignature);
    return {
        rlnInstance,
        identity,
        insertMemberSpy
    };
}
/**
 * Initializes an RLN contract with the given registry contract
 */
export async function initializeRLNContract(rlnInstance, mockedRegistryContract) {
    const provider = new ethers.providers.JsonRpcProvider();
    const voidSigner = new ethers.VoidSigner(RLN_CONTRACT.address, provider);
    const originalRegister = mockedRegistryContract.register;
    mockedRegistryContract.register = function (...args) {
        const result = originalRegister.apply(this, args);
        if (args[0] && rlnInstance.zerokit) {
            const idCommitmentBigInt = args[0];
            const idCommitmentHex = "0x" + idCommitmentBigInt.toString(16).padStart(64, "0");
            const idCommitment = ethers.utils.zeroPad(hexToBytes(idCommitmentHex), 32);
            rlnInstance.zerokit.insertMember(idCommitment);
        }
        return result;
    };
    const contract = await RLNContract.init(rlnInstance, {
        address: RLN_CONTRACT.address,
        signer: voidSigner,
        rateLimit: DEFAULT_RATE_LIMIT,
        contract: mockedRegistryContract
    });
    return contract;
}
/**
 * Common test message data
 */
export const TEST_DATA = {
    contentTopic: "/test/1/waku-message/utf8",
    emptyPubsubTopic: "",
    testMessage: Uint8Array.from("Hello World".split("").map((x) => x.charCodeAt(0))),
    mockSignature: "0xdeb8a6b00a8e404deb1f52d3aa72ed7f60a2ff4484c737eedaef18a0aacb2dfb4d5d74ac39bb71fa358cf2eb390565a35b026cc6272f2010d4351e17670311c21c"
};
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