Using the Truffle command line debugger

Question

I'm writing a contract in solidity, in which a test case fails. I want to step through the code to find what's going wrong. I'm using truffle for development. This is what I do after making changes to the contract

truffle develop
compile
test ./test/NameOfMyTestCaseFile.sol

This returns failure on a particular test case.

The manual at DEBUGGING YOUR CONTRACTS, reads:

truffle debug <transaction hash>

I don't see any transaction hash output on my console. How do I use the debugger to step through the code ?

Answer 1

You can use Ganache and Remix to get transaction hashes for specific transactions. To use Ganache, go to your truffle.js file, and include a reference to it within module.exports:

module.exports = {
// See <http://truffleframework.com/docs/advanced/configuration>
// to customize your Truffle configuration!
    networks: {
        development: {
            host: "127.0.0.1",
            port: 7545,
            network_id: "*"
        }
    }
};

In Remix, run using a Web3 Provider environment option, and if you're using Ganache then the endpoint is http://127.0.0.1:7545. You can then use truffle or Remix to debug your code. Hope this helps!