I just finished following along project 3 where we include actions and blinks to the peanut butter voting project. At the very end, we had to anchor clean and anchor test to have it clear its cache and rebuild the program. We also included the following lines of code to to set provider and get the program

 anchor.setProvider(anchor.AnchorProvider.env());
  let votingProgram = anchor.workspace.Voting as Program<Voting>;

And finally had to replace the pubkey with the pub address of the deployed program.

However, now I fail every test and get no explanation as to why. I have no clue why it's happening:

(node:33455) [DEP0040] DeprecationWarning: The `punycode` module is deprecated. Please use a userland alternative instead.
(Use `node --trace-deprecation ...` to show where the warning was created)
 FAIL  tests/votingdapp.spec.ts (15.302 s)
  Voting
    ✕ initialize Poll (91 ms)
    ✕ initialize candidate (19 ms)
    ✕ vote (14 ms)

  ● Voting › initialize Poll





  ● Voting › initialize candidate





  ● Voting › vote





Test Suites: 1 failed, 1 total
Tests:       3 failed, 3 total
Snapshots:   0 total
Time:        15.364 s

Here's the full code in the file, please let me know what other info might be needed to solve the issue:

import * as anchor from '@coral-xyz/anchor';
import {Program} from '@coral-xyz/anchor';
import {Keypair, PublicKey} from '@solana/web3.js';
import { startAnchor } from "solana-bankrun";
import { BankrunProvider } from 'anchor-bankrun';
import { Voting } from 'anchor/target/types/voting';

const IDL = require("../target/idl/voting.json");
const votingAddress = new PublicKey("AHobZPpSamDDDkA792LiLvwMQmNE7BZNMcYHV2bvAXUR");

describe('Voting', () => {
  let context;
  let provider;
  anchor.setProvider(anchor.AnchorProvider.env());
  let votingProgram = anchor.workspace.Voting as Program<Voting>;

  beforeAll(async () => {
    // context = await startAnchor("", [{ name: "voting", programId: votingAddress }], []);
      // provider = new BankrunProvider(context);

    // votingProgram = new Program<Voting>(
    //   IDL,
    //   provider,
    // );
  });

  it("initialize Poll", async () => {
    await votingProgram.methods.initializePoll(
      new anchor.BN(1),
      "what is your favorite type of peanut butter",
      new anchor.BN(0),
      new anchor.BN(1829039043),
    ).rpc();

    const [pollAddress, _] = PublicKey.findProgramAddressSync(
      [new anchor.BN(1).toArrayLike(Buffer, "le", 8)],
      votingAddress,
    );

    const poll = await votingProgram.account.poll.fetch(pollAddress);
    console.log(poll);

    expect(poll.pollId.toNumber()).toBe(1);
    expect(poll.description).toBe("what is your favorite type of peanut butter");
  });

  it("initialize candidate", async () => {
    await votingProgram.methods.initializeCandidate(
      "Smooth",
      new anchor.BN(1),
    ).rpc();

    await votingProgram.methods.initializeCandidate(
      "Crunchy",
      new anchor.BN(1),
    ).rpc();

    // fetches the address
    const [smoothAddress] = PublicKey.findProgramAddressSync(
      [new anchor.BN(1).toArrayLike(Buffer, "le", 8), Buffer.from("Smooth")],
      votingAddress,
    );

    const smoothCandidate = await votingProgram.account.candidate.fetch(smoothAddress);

    const [crunchAddress] = PublicKey.findProgramAddressSync(
      [new anchor.BN(1).toArrayLike(Buffer, "le", 8), Buffer.from("Crunchy")],
      votingAddress,
    );

    const crunchyCandidate = await votingProgram.account.candidate.fetch(crunchAddress);

    console.log(smoothCandidate, crunchyCandidate)

    expect(smoothCandidate.voteCount.toNumber()).toEqual(0);
    

  });

  it("vote", async () => {
    await votingProgram.methods.vote(
      "Smooth",
      new anchor.BN(1),
    ).rpc();        

    await votingProgram.methods.vote(
      "Smooth",
      new anchor.BN(1),
    ).rpc();   

    const [smoothAddress] = PublicKey.findProgramAddressSync(
      [new anchor.BN(1).toArrayLike(Buffer, "le", 8), Buffer.from("Smooth")],
      votingAddress,
    );

    const smoothCandidate = await votingProgram.account.candidate.fetch(smoothAddress);
    console.log(smoothCandidate);
  
  });

});