pragma solidity ^0.5.16; import "openzeppelin-solidity-2.3.0/contracts/token/ERC20/ERC20.sol"; import "openzeppelin-solidity-2.3.0/contracts/token/ERC20/ERC20Detailed.sol"; contract MockToken is ERC20, ERC20Detailed { constructor( string memory name, string memory symbol, uint8 decimals ) public ERC20Detailed(name, symbol, decimals) { _mint(msg.sender, 1000000 * (10**uint256(decimals))); } }