I am starting to explore account-abstraction and trying to run all the unit tests. Right now I am getting error in should deploy the factory test when trying to execute it on a private test evm network. When I run the same test against ganache or test hardhat network, it runs successfully.

The error I got when running against my private test network:

Error: insufficient funds for intrinsic transaction cost [ See: https://links.ethers.org/v5-errors-INSUFFICIENT_FUNDS ] (error={"name":"ProviderError","_stack":"ProviderError: HttpProviderError\n at HttpProvider.request (/Users/asad/Dev/caduceus/Account-Abstraction/eth-infinitism/account-abstraction/node_modules/hardhat/src/internal/core/providers/http.ts:78:19)\n at HDWalletProvider.request (/Users/asad/Dev/caduceus/Account-Abstraction/eth-infinitism/account-abstraction/node_modules/hardhat/src/internal/core/providers/accounts.ts:187:34)\n at processTicksAndRejections (node:internal/process/task_queues:95:5)\n at async EthersProviderWrapper.send (/Users/asad/Dev/caduceus/Account-Abstraction/eth-infinitism/account-abstraction/node_modules/@nomiclabs/hardhat-ethers/src/internal/ethers-provider-wrapper.ts:13:20)","code":-32000,"_isProviderError":true}, method="sendTransaction", transaction="0xf8a58085174876e800830186a08080b853604580600e600039806000f350fe7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe03601600081602082378035828234f58015156039578182fd5b8082525050506014600cf31ba02222222222222222222222222222222222222222222222222222222222222222a02222222222222222222222222222222222222222222222222222222222222222", code=INSUFFICIENT_FUNDS, version=providers/5.7.2)

Although I deposit enough funds to the signer as well as the wallet i am running the test with.

More Questions:

  • The test, should deploy the factory is sending an already signed transaction, which ensure deployment of contract to a pre-computed address. Is this necessary to deploy this particular contract to the same address?
  • What does this particular contract (deployed by should deploy the factory test) do and where can we find source code for this?

2 Answers 2


If you are asking about this test case :

  it('should deploy the factory', async () => {
    expect(await factory._isFactoryDeployed()).to.equal(false, 'factory exists before test deploy')
    await factory.deployFactory()
    expect(await factory._isFactoryDeployed()).to.equal(true, 'factory failed to deploy')

Then : its only checking the factory deployment.

  • No. It checks whether factory is deployed or not and deploys if factory is not deployed.
    – Asad Hayat
    Jul 18 at 21:33

Test tests are meant to run on local network. they were tested to work on local hardhat and geth

It is a standard deterministic deployer, not directly related to ERC-4337. The deployer is created from address 0x3fab184622dc19b6109349b94811493bf2a45362, so you can try to fund it and see if it works.

  • I tried multiple times to deploy the contract. I have funded the deployer address with sufficient balance, more than 150 ETHs. But still I get the same error.
    – Asad Hayat
    Jul 24 at 14:27

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