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TryFfi.sol
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TryFfi.sol
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// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity >=0.8.18;
import "ds-test/test.sol";
import "cheats/Vm.sol";
contract TryFfiTest is DSTest {
Vm constant vm = Vm(HEVM_ADDRESS);
function testTryFfi() public {
string[] memory inputs = new string[](3);
inputs[0] = "bash";
inputs[1] = "-c";
inputs[2] =
"echo -n 0x0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000966666920776f726b730000000000000000000000000000000000000000000000";
Vm.FfiResult memory f = vm.tryFfi(inputs);
(string memory output) = abi.decode(f.stdout, (string));
assertEq(output, "ffi works", "ffi failed");
assertEq(f.exitCode, 0, "ffi failed");
}
function testTryFfiFail() public {
string[] memory inputs = new string[](2);
inputs[0] = "ls";
inputs[1] = "wad";
Vm.FfiResult memory f = vm.tryFfi(inputs);
assertTrue(f.exitCode != 0);
}
}