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add conversion rate in a fallback and receive, no need for unfair conversion

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Signed-off-by: Uncle Fatso <uncle.fatso@ghostchain.io>
This commit is contained in:
Uncle Fatso 2025-07-25 14:48:56 +03:00
parent 8e9374b2d0
commit 8746bc747a
Signed by: f4ts0
GPG Key ID: 565F4F2860226EBB
2 changed files with 36 additions and 4 deletions
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14
src/mocks/Reserve.sol
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@ -20,11 +20,13 @@ contract Reserve is ERC20Permit {
}
fallback() external payable {
_mint(msg.sender, msg.value);
_accumulateDonation(msg.value);
_mint(msg.sender, msg.value * conversionRate);
}
receive() external payable {
_mint(msg.sender, msg.value);
_accumulateDonation(msg.value);
_mint(msg.sender, msg.value * conversionRate);
}
function changeRate(uint256 rate) external {
@ -52,8 +54,7 @@ contract Reserve is ERC20Permit {
}
function mint(address account) external payable {
uint256 donation = msg.value * donationRate / 1e5;
accumulatedDonation += donation;
_accumulateDonation(msg.value);
_mint(account, msg.value * conversionRate);
}
@ -70,4 +71,9 @@ contract Reserve is ERC20Permit {
uint256 valueDiff = address(this).balance - accumulatedDonation;
return amount * valueDiff / totalSupply();
}
function _accumulateDonation(uint256 value) private {
uint256 donation = value * donationRate / 1e5;
accumulatedDonation += donation;
}
}

26
test/tokens/Reserve.t.sol
View File

@ -270,4 +270,30 @@ contract ReserveTest is Test {
assertEq(reserve.accumulatedDonation(), sendAmount);
assertEq(address(reserve).balance, sendAmount);
}
function test_reserveFallback() public {
assertEq(address(reserve).balance, 0);
assertEq(reserve.balanceOf(aliceAddress), 0);
vm.prank(aliceAddress);
(bool success, ) = address(reserve).call(abi.encodeWithSignature("nonExistentFunction()"));
require(success, "Fallback call failed");
assertEq(address(reserve).balance, 0);
assertEq(reserve.balanceOf(aliceAddress), 0);
}
function test_reserveReceive() public {
assertEq(address(reserve).balance, 0);
assertEq(reserve.balanceOf(aliceAddress), 0);
deal(aliceAddress, sendAmount);
vm.prank(aliceAddress);
(bool success, ) = address(reserve).call{value: sendAmount}("");
require(success, "Transfer of native failed");
uint256 estimatedReceiveAmount = sendAmount * reserve.conversionRate();
assertEq(address(reserve).balance, sendAmount);
assertEq(reserve.balanceOf(aliceAddress), estimatedReceiveAmount);
}
}