Lesson 7 (Staging Tests): TypeError: fundMe.getPriceFeed is not a function; Error: cannot estimate gas

[Jatinkkalra]

Overview

I am trying to run a full staging test of the FundMeWithLibrary contract and I am facing these 2 errors (gas error twice):

yarn hardhat test --network sepolia
yarn run v1.22.19
warning package.json: No license field
$ /home/mightguy/hh-1/hardhat-fund-me/node_modules/.bin/hardhat test --network sepolia
1
2

  FundMeWithLibrary
    constructor

      1) Sets the aggregator addresses correctly
    fundUSD

      2) "before each" hook for "Fails if amount < 50 USD!"
    withdraw

      3) "before each" hook for "Cheaper Way: Withdraws ETH from the contract with multiple funders"


  0 passing (19s)
  3 failing

  1) FundMeWithLibrary
       constructor
         Sets the aggregator addresses correctly:
     TypeError: fundMe.getPriceFeed is not a function
      at Context.<anonymous> (test/staging/FundMe.staging.test.js:23:41)
      at processImmediate (node:internal/timers:476:21)

  2) FundMeWithLibrary
       fundUSD
         "before each" hook for "Fails if amount < 50 USD!":
     Error: cannot estimate gas; transaction may fail or may require manual gas limit [ See: https://links.ethers.org/v5-errors-UNPREDICTABLE_GAS_LIMIT ] (reason="execution reverted: Minimum is 50 USD!", method="estimateGas", transaction={"from":"0x65fa73eFAEcfa785B08808a94ecBB1422Bb64fE4","to":"0x0eC7C4b1601b52ad2478a7EAd7a6A5309fbD4Cfe","value":{"type":"BigNumber","hex":"0x0de0b6b3a7640000"},"data":"0x2489cf53","accessList":null}, error={"name":"ProviderError","_stack":"ProviderError: execution reverted: Minimum is 50 USD!\n    at HttpProvider.request (/home/mightguy/hh-1/hardhat-fund-me/node_modules/hardhat/src/internal/core/providers/http.ts:88:21)\n    at processTicksAndRejections (node:internal/process/task_queues:95:5)\n    at EthersProviderWrapper.send (/home/mightguy/hh-1/hardhat-fund-me/node_modules/@nomiclabs/hardhat-ethers/src/internal/ethers-provider-wrapper.ts:13:20)","code":3,"_isProviderError":true,"data":"0x08c379a0000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000124d696e696d756d20697320353020555344210000000000000000000000000000"}, code=UNPREDICTABLE_GAS_LIMIT, version=providers/5.7.2)
      at Logger.makeError (node_modules/@ethersproject/logger/src.ts/index.ts:269:28)
      at Logger.throwError (node_modules/@ethersproject/logger/src.ts/index.ts:281:20)
      at checkError (node_modules/@ethersproject/providers/src.ts/json-rpc-provider.ts:78:20)
      at EthersProviderWrapper.<anonymous> (node_modules/@ethersproject/providers/src.ts/json-rpc-provider.ts:642:20)
      at step (node_modules/@ethersproject/providers/lib/json-rpc-provider.js:48:23)
      at Object.throw (node_modules/@ethersproject/providers/lib/json-rpc-provider.js:29:53)
      at rejected (node_modules/@ethersproject/providers/lib/json-rpc-provider.js:21:65)
      at processTicksAndRejections (node:internal/process/task_queues:95:5)

  3) FundMeWithLibrary
       withdraw
         "before each" hook for "Cheaper Way: Withdraws ETH from the contract with multiple funders":
     Error: cannot estimate gas; transaction may fail or may require manual gas limit [ See: https://links.ethers.org/v5-errors-UNPREDICTABLE_GAS_LIMIT ] (reason="execution reverted: Minimum is 50 USD!", method="estimateGas", transaction={"from":"0x65fa73eFAEcfa785B08808a94ecBB1422Bb64fE4","to":"0x0eC7C4b1601b52ad2478a7EAd7a6A5309fbD4Cfe","value":{"type":"BigNumber","hex":"0x0de0b6b3a7640000"},"data":"0x2489cf53","accessList":null}, error={"name":"ProviderError","_stack":"ProviderError: execution reverted: Minimum is 50 USD!\n    at HttpProvider.request (/home/mightguy/hh-1/hardhat-fund-me/node_modules/hardhat/src/internal/core/providers/http.ts:88:21)\n    at processTicksAndRejections (node:internal/process/task_queues:95:5)\n    at EthersProviderWrapper.send (/home/mightguy/hh-1/hardhat-fund-me/node_modules/@nomiclabs/hardhat-ethers/src/internal/ethers-provider-wrapper.ts:13:20)","code":3,"_isProviderError":true,"data":"0x08c379a0000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000124d696e696d756d20697320353020555344210000000000000000000000000000"}, code=UNPREDICTABLE_GAS_LIMIT, version=providers/5.7.2)
      at Logger.makeError (node_modules/@ethersproject/logger/src.ts/index.ts:269:28)
      at Logger.throwError (node_modules/@ethersproject/logger/src.ts/index.ts:281:20)
      at checkError (node_modules/@ethersproject/providers/src.ts/json-rpc-provider.ts:78:20)
      at EthersProviderWrapper.<anonymous> (node_modules/@ethersproject/providers/src.ts/json-rpc-provider.ts:642:20)
      at step (node_modules/@ethersproject/providers/lib/json-rpc-provider.js:48:23)
      at Object.throw (node_modules/@ethersproject/providers/lib/json-rpc-provider.js:29:53)
      at rejected (node_modules/@ethersproject/providers/lib/json-rpc-provider.js:21:65)
      at processTicksAndRejections (node:internal/process/task_queues:95:5)



error Command failed with exit code 3.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
mightguy@LAPTOP-25LBPNJE:~/hh-1/hardhat-fund-me$ yarn hardhat test

The codes works well with yarn hardhat test but fails on sepolia network.

Here is my repo: https://github.com/Jatinkkalra/hardhat-fund-me

If anyone could please help, let me know. Thank you in advance! 🙏

[alymurtazamemon]

@Jatinkkalra It is working, I just test it out (only tested the constructor for now, comment out other things), and here is the result;

[alymurtazamemon]

@Jatinkkalra And the constructor test should be like this;

describe("constructor", async function () {
  it("Sets the aggregator addresses correctly", async () => {
    const response = await fundMe.getPriceFeed();
    assert.equal(response, networkConfig[chainId]["ethUsdPriceFeed"]);
  });
});