Code coverage Zero percent when the flag viaIR:true

[badrik-pedalsup]

my solidity files are to big and are not getting compiled without enabling this flag.

.solcover.js

module.exports = {
    configureYulOptimizer: true,
    skipFiles:["USDC.sol"],
    measureStatementCoverage:true,
};

hardhat.config.js

require("@nomiclabs/hardhat-ethers");
require('hardhat-abi-exporter');
require("@nomiclabs/hardhat-etherscan");
require("@nomicfoundation/hardhat-toolbox");
require('solidity-coverage');
require('hardhat-contract-sizer');

//Require .env
require("dotenv").config({ path: __dirname + "/.env" });

module.exports = {
  defaultNetwork:process.env.NETWORK,
  etherscan: {
    apiKey: process.env.ETHERSCAN_API_KEY,
  },
  networks: {
    rinkeby: {
      url: process.env.RINKEBY_URL,
      accounts: [process.env.ACCOUNT_PRIVATE_KEY],
    },
    goerli: {
      url: process.env.GOERLI_URL,
      accounts: [process.env.ACCOUNT_PRIVATE_KEY],
    },
    hardhat: {
      mining: {
        auto: true,
        interval: [3000, 6000]
      }
    }
  },
  solidity: {
    version: "0.8.16",
    settings: {
      optimizer:{
        "enabled": true,
        "runs": 1, 
      },
      "evmVersion": "istanbul",
      "viaIR": true
    },
  },
  paths: {
    sources: "./contracts",
    tests: "./test",
    cache: "./cache",
    artifacts: "./artifacts"
  },
  mocha: {
    timeout: 20000
  },
  abiExporter: [
    {
      path: './abi/json',
      runOnCompile: true,
      clear: true,
      flat: true,
      only: ['contracts/implementation.sol:ERC20NonTransferable','contracts/factory.sol:FactoryCloneContract','contracts/emitter.sol:Emitter', 'contracts/USDC.sol:USDC'],
      spacing: 2,
      format:'json'
    },
    {
      path: './abi/minimal',
      runOnCompile: true,
      clear: true,
      flat: true,
      only: ['contracts/implementation.sol:ERC20NonTransferable','contracts/factory.sol:FactoryCloneContract','contracts/emitter.sol:Emitter'],
      spacing: 2,
      format:'minimal'
    }
  ],
  plugins: ["solidity-coverage"],
  contractSizer: {
    alphaSort: true,
    disambiguatePaths: false,
    runOnCompile: false,
    strict: true,
    only: [],
  },
}

Output:-

Version
=======
> solidity-coverage: v0.8.2

Instrumenting for coverage...
=============================

> emitter.sol
> factory.sol
> implementation.sol
> proxy.sol

Coverage skipped for:
=====================

> USDC.sol

Compilation:
============

(node:19326) ExperimentalWarning: stream/web is an experimental feature. This feature could change at any time
(Use `node --trace-warnings ...` to show where the warning was created)
Compiled 31 Solidity files successfully

Network Info
============
> HardhatEVM: v2.11.2
> network:    hardhat



  Factory Contract testing
    ✔ Deploy factory, proxy, usdc, emitter contract (665ms)
    ✔ Deploy factory contract with invalid USDC address should fail (51ms)
    ✔ Check the owner of factory
    USDC method testing(changeUSDCAddress)
      ✔ Check USDC address
      ✔ Change USDC address (115ms)
      ✔ Change USDC to invalid address should fail
      ✔ Only owner can change the USDC address (95ms)
    Implementation method testing(changeDAOImplementation)
      ✔ Check implementation address
      ✔ Change Implementation address (97ms)
      ✔ Change Implementation to invalid address should fail
      ✔ Only owner can change the implementation address (61ms)
    Create dao method testing(createDAO)
      ✔ Create Dao (70ms)
      ✔ Max should be grater than min in create DAO (49ms)
      ✔ Total raise should be grater than max in create DAO (40ms)
      ✔ Days should be grater than 0 in create DAO (44ms)
      ✔ Owner fee cannot be 100 in create DAO (43ms)
      ✔ Owner address cannot be null in create DAO (40ms)
      ✔ Quorum cannot exceed 100 in create DAO method (44ms)
      ✔ Threshold cannot exceed 100 in create DAO method (47ms)
      ✔ Check owner address
      ✔ Check DAO config (82ms)

  Implementation Contract (DAO testing)
    Update min max deposit(updateMinMaxDeposit)
      ✔ Check the min max deposit amount (289ms)
      ✔ Change the min max deposit per user (44ms)
      ✔ Only admin can change the min max deposit per user
      ✔ Max should be grater than min in change change min max deposit per user
    Update owner fee(updateOwnerFee)
      ✔ check the owner fee
      ✔ Change the owners fee
      ✔ Owner fee cannot be grater than or equal to 100
      ✔ Only owner can change the owner fee
    Close deposit (closeDeposit)
      ✔ close deposit
      ✔ Cannot close deposit if it's already closed (38ms)
      ✔ Only admin can close deposit
    Start deposit (startDeposit)
      ✔ Start deposit (61ms)
      ✔ Start deposit with raise amount equal to 0 should fail
      ✔ Start deposit with days equal to zero should fail (41ms)
      ✔ Total raise amount should be grater than or equal to previous raise amount (52ms)
      ✔ Start deposit should fail if deposit is already running
      ✔ Only admin can start deposit
    Testing Deposit function(deposit)
      ✔ Try Deposit with fees in USDC (77ms)
      ✔ Try amount less than min balance (39ms)
      ✔ Try amount grater than max balance (39ms)
      ✔ Try depositing another token than usdc (77ms)
      ✔ try deposit if amount has exceed total raise amount (69ms)
      ✔ try deposit into DAO where fees in GT token (89ms)
    Execute proposal(updateProposalAndExecution)
      ✔ Airdrop token (149ms)
      ✔ Mint GT tokens (61ms)
      ✔ Update governor settings (58ms)
      ✔ Update raise amount (55ms)
      ✔ Send custom token (71ms)


  49 passing (3s)

---------------------|----------|----------|----------|----------|----------------|
File                 |  % Stmts | % Branch |  % Funcs |  % Lines |Uncovered Lines |
---------------------|----------|----------|----------|----------|----------------|
 contracts/          |        0 |        0 |        0 |        0 |                |
  emitter.sol        |        0 |        0 |        0 |        0 |... 1,95,99,103 |
  factory.sol        |        0 |        0 |        0 |        0 |... 72,78,80,81 |
  implementation.sol |        0 |        0 |        0 |        0 |... 611,618,625 |
  proxy.sol          |        0 |      100 |        0 |        0 |    34,35,41,42 |
---------------------|----------|----------|----------|----------|----------------|
All files            |        0 |        0 |        0 |        0 |                |
---------------------|----------|----------|----------|----------|----------------|

> Istanbul reports written to ./coverage/ and ./coverage.json

[laraschke]

Same problem on my side. The compilation results in "Stack too deep" without "viaIR: true". Setting viaIR to true compiles the contracts and runs the test cases but shows 0% test coverage for all files.

[hung-native]

same here

[cgewecke]

Tracking this in #715