chain_id.md

chainId

Description

The chainId cheatcode will set the block.chainid

Example

// Obtain our cheat code contract reference.
IStdCheats cheats = CheatCodes(0x7109709ECfa91a80626fF3989D68f67F5b1DD12D);

// Change value and verify.
cheats.chainId(777123);
assert(block.chainid == 777123);

Function Signature

function chainId(uint256) external;