Runs the main() function of all contracts in a Solidity file.

1. Install the Solidity compiler

2. Install Ganache

3. Install run_solidity: npm i -g run_solidity

1. Start the local Ganache network:

   NODE_OPTIONS=--openssl-legacy-provider ganache-cli
   

2. Create a Solidity contract and save as main.sol:

   // SPDX-License-Identifier: MIT
   
   pragma solidity >=0.4.22 <=0.9.0;
   
   contract Example {
   
     event Hello(uint256 number);
   
     function main() public {
       for (uint i = 0; i < 10; ++i) {
         emit Hello(i);
       }
       buy(500);
     }
         
   }
   

3. Run it with run_solidity main.sol

This will run the main() function on each contract inside this .sol file. It will show all the events emitted, and the total gas used. That's all.