Lesson 7 problems with my yarn hardhat test

[Milot121]

my code is:

const { deployments, ethers, getNamedAccounts } = require("hardhat")
const {assert} = require("chai")

describe("FundMe", function () {
    let fundMe
    let deployer
    let mockV3Aggregator
    beforeEach(async function () {
        // const account = await ethers.getSigners()
        // const accountOne = accounts[0]
        deployer = (await getNamedAccounts()).deployer
        await deployments.fixture(["all"])
        fundMe = await ethers.getContractAt("FundMe", deployer)
        mockV3Aggregator = await ethers.getContractAt(
            "MockV3Aggregator",
            deployer
        )
    })

    describe("constructor", async function () {
        it("sets the aggregator addresses correctly", async function(){
            const response = await fundMe.priceFeed()
            assert.equal(response,mockV3Aggregator.address)
        })
    })
})

the command im using:

yarn hardhat test

the errorr im getting:

FundMe
    constructor

      1) sets the aggregator addresses correctly


  0 passing (1s)
  1 failing

  1) FundMe
       constructor
         sets the aggregator addresses correctly:
     Error: could not decode result data (value="0x", info={ "method": "priceFeed", "signature": "priceFeed()" }, code=BAD_DATA, version=6.12.0)
      at makeError (node_modules\ethers\src.ts\utils\errors.ts:694:21)
      at assert (node_modules\ethers\src.ts\utils\errors.ts:715:25)
      at Interface.decodeFunctionResult (node_modules\ethers\src.ts\abi\interface.ts:916:15)
      at staticCallResult (node_modules\ethers\src.ts\contract\contract.ts:346:35)
      at staticCall (node_modules\ethers\src.ts\contract\contract.ts:303:24)
      at Proxy.priceFeed (node_modules\ethers\src.ts\contract\contract.ts:351:41)
      at Context.<anonymous> (test\unit\FundMe.test.js:22:30)



error Command failed with exit code 1.

[austinlight-mle]

Try this.

describe("FundMe", function () {
  let fundMe;
  let deployer;
  let mockV3Aggregator;

  beforeEach(async function () {
    // deploy FundMe contract using hardhat deploy
    // const accounts = await ethers.getSigners();
    // const accountZero = accounts[0];

    deployer = (await getNamedAccounts()).deployer;
    await deployments.fixture(["all"]);

    const fundMeDeployment = await deployments.get("FundMe");
    fundMe = await ethers.getContractAt(
      "FundMe",
      fundMeDeployment.address,
      deployer
    );

    const mockV3AggregatorDeployment = await deployments.get(
      "MockV3Aggregator"
    );
    mockV3Aggregator = await ethers.getContractAt(
      "MockV3Aggregator",
      mockV3AggregatorDeployment.address,
      deployer
    );
  });

  describe("constructor", function () {
    it("sets the aggregator address correctly", async function () {
      const response = fundMe.priceFeed;
      assert.equal(response, mockV3Aggregator.address);
    });
  });
});