testINT

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8;

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

contract TestINT is ERC20 {
constructor(uint256 initialSupply) ERC20("TestINT", "TINT") {
_mint(msg.sender, initialSupply * (10 ** uint256(decimals())));
}
}

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8;

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

contract TestUSDT is ERC20 {
constructor(uint256 initialSupply) ERC20("testUSDT", "TUSDT") {
_mint(msg.sender, initialSupply * 10 ** uint256(decimals()));
}
}

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

contract tokenSwapper{
IERC20 public testINT;
IERC20 public testUSDT;

constructor(IERC20 _testINT, IERC20 _testUSDT) {
    testINT=IERC20(_testINT);
     testUSDT=IERC20(_testUSDT);

}

function swap(uint amount) external{
    require(amount > 0, "Amount must be greater than zero");
    require(testINT.transferFrom(msg.sender, address(this), amount), "TransferFrom failed");
    require(testUSDT.transfer(msg.sender, amount), "Transfer failed");

}

}