// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";

contract TestERC20 is ERC20 {

    constructor() ERC20("TestERC20", "TestERC20") {}

    function mint(address recipient, uint256 amount) external {
        require(amount != 0, "amount == 0");
        _mint(recipient, amount);
    }

    function burn(uint256 amount) external {
        _burn(_msgSender(), amount);
    }
}