Hey Everyone I initialize foundry framework and got folder structures however initially lib folder was missing which i later installed via this command git submodule add –force –name lib/forge-std https://github.com/foundry-rs/forge-std lib/forge-std.Now when i try to run test on my smart contract I came to know that lib/forge-std/lib folder is completely empty whereby my test failed to run how can i get all the files and folders that lies under lib/forge-std/lib ?
Foundry – Why is the lib/forge-std/lib Folder Empty?
foundry
Related Solutions
It is not currently possible to create custom spans for gas reporting in Forge - or rather, Forge does not have a built-in mechanism for this.
The only way you can achieve something similar, is to create your own helper functions that use the gasleft() Solidity built-in.
These two functions are taken from solmate:
contract GasHelpers {
string private checkpointLabel;
uint256 private checkpointGasLeft = 1; // Start the slot warm.
function startMeasuringGas(string memory label) internal virtual {
checkpointLabel = label;
checkpointGasLeft = gasleft();
}
function stopMeasuringGas() internal virtual {
uint256 checkpointGasLeft2 = gasleft();
// Subtract 100 to account for the warm SLOAD in startMeasuringGas.
uint256 gasDelta = checkpointGasLeft - checkpointGasLeft2 - 100;
emit log_named_uint(string(abi.encodePacked(checkpointLabel, " Gas")), gasDelta);
}
}
The function emits an event with the gas used. To see the output of the events you must run your tests with at least double verbosity: forge test -vv.
Currently it seems the forge debugger doesn't support this. However, there is other tooling that does! Remix has additional windows for this. As local and storage variables.
Best Answer
Make sure you're in the correct working directory, and try:
Or you can also try running: