No log_named_bool() ?

[CaledoniaProject]

How can I log a bool value?

[mds1]

// The first one might work, but solidity might ask you to be explicit on the types
// in which case the second one should work
emit log_named_uint("name", bool ? 1 : 0)
emit log_named_uint("name", bool ? uint256(1) : 0)

Alternatively, you can PR additional log_bool and log_named_bool events to forge-std: https://github.com/foundry-rs/forge-std/blob/27e14b7f2448e5f5ac32719f51fe652aa0b0733e/src/Test.sol#L20-L25

[CaledoniaProject]

I've added log_named_bool here,

But it does not print anything in my test contract:

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.13;

import "forge-std/Test.sol";

contract ContractTest is Test {
    function setUp() public {}

    function testExample() public {
        emit log_named_bool("OK 123", false);
        emit log_named_address("test", address(this));
        
        assertTrue(true);
    }
}

Output

%> forge test -vvv
[⠔] Compiling...
[⠢] Compiling 1 files with 0.8.15
[⠆] Solc 0.8.15 finished in 618.42ms
Compiler run successful

Running 1 test for test/Contract.t.sol:ContractTest
[PASS] testExample() (gas: 3972)
Logs:
  test: 0xb4c79dab8f259c7aee6e5b2aa729821864227e84

Test result: ok. 1 passed; 0 failed; finished in 506.69µs

[mds1]

Ah right, you'll also need to open a PR to add that to the DSTest ABI in foundry. You can see another PR that made a similar change here: #1916

[CaledoniaProject]

@mds1 I mean, the added log_named_bool event does not work for me, I don't know what's wrong

[mds1]

Right, my above comment explains what's wrong. To clarify: You can see from PR #1916 that we needed to add new bindings for the DSTest ABI—this is in addition to adding the event to your local DSTest or Test contract. You need both for the event to show up in the "Logs" section.

I'll be out of town for the next week or so, so likely will not be able to get a PR in, but if you are unable to PR that fix in yourself you can always use a workaround like:

function emitLogNamedBool(string name, bool val) internal {
  emit log_name_string(name, val ? "true" : "false");
}