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openzeppelin-contracts/test/token/ERC20/extensions/ERC4626.t.sol

41 lines
1.5 KiB

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import {ERC4626Test} from "erc4626-tests/ERC4626.test.sol";
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {ERC4626} from "@openzeppelin/contracts/token/ERC20/extensions/ERC4626.sol";
import {ERC20Mock} from "@openzeppelin/contracts/mocks/token/ERC20Mock.sol";
import {ERC4626Mock} from "@openzeppelin/contracts/mocks/token/ERC4626Mock.sol";
import {ERC4626OffsetMock} from "@openzeppelin/contracts/mocks/token/ERC4626OffsetMock.sol";
contract ERC4626VaultOffsetMock is ERC4626OffsetMock {
constructor(
ERC20 underlying_,
uint8 offset_
) ERC20("My Token Vault", "MTKNV") ERC4626(underlying_) ERC4626OffsetMock(offset_) {}
}
contract ERC4626StdTest is ERC4626Test {
ERC20 private _underlying = new ERC20Mock();
function setUp() public override {
_underlying_ = address(_underlying);
_vault_ = address(new ERC4626Mock(_underlying_));
_delta_ = 0;
_vaultMayBeEmpty = true;
_unlimitedAmount = true;
}
/**
* @dev Check the case where calculated `decimals` value overflows the `uint8` type.
*/
function testFuzzDecimalsOverflow(uint8 offset) public {
/// @dev Remember that the `_underlying` exhibits a `decimals` value of 18.
offset = uint8(bound(uint256(offset), 238, uint256(type(uint8).max)));
ERC4626VaultOffsetMock erc4626VaultOffsetMock = new ERC4626VaultOffsetMock(_underlying, offset);
vm.expectRevert();
erc4626VaultOffsetMock.decimals();
}
}