Code coverage issue.

[badrik-pedalsup]

My all test cases are passing but still, code coverage is 0.
I have written test cases using hardhat.

[SvineruS]

Had the same problem.

I had several versions of the compiler (0.4.24 and 0.8.17) and contracts with those versions.
I left only version 0.8.17, the coverage started working correctly.
UPD: also removed evmVersion: "byzantium"

But it's strange, I have another project with the same versions of solidity, but used a different hardhat environment (fork of solidity-coverage from august 2021; hardhat-deploy; without hardhat-toolbox) and everything works fine

[cgewecke]

The primary reason people are seeing 0% coverage is because viaIR is set to true. Tracking that in #715