// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

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

/// @dev Test ERC20 with configurable decimals.
contract MockERC20 is ERC20 {
    uint8 private immutable _decimals;

    constructor(string memory name_, string memory symbol_, uint8 decimals_) ERC20(name_, symbol_) {
        _decimals = decimals_;
    }

    function mint(address to, uint256 amount) external {
        _mint(to, amount);
    }

    function decimals() public view override returns (uint8) {
        return _decimals;
    }
}

/// @dev Alias used by some tests.
contract MockERC20Decimals is MockERC20 {
    constructor(string memory name_, string memory symbol_, uint8 decimals_) MockERC20(name_, symbol_, decimals_) {}
}