Function: initialize(address _coldMultisig, uint256 _messageToll, address[] _signers, uint256 _signatureThreshold, byte[3][] _supportedChains)

This function is used to initialize the contract with the required parameters. It sets the initial owners, message toll, signers, and signature threshold. This function can only be called once and called in the same transaction as deployment.

Inputs

• _coldMultisig

  • Control: Arbitrary.

  • Constraints: None.

  • Impact: Address of owner.

• _messageToll

  • Control: Arbitrary.

  • Constraints: None.

  • Impact: Value of message toll price.

• _signers

  • Control: Arbitrary.

  • Constraints: Nonzero address.

  • Impact: Array of addresses authorized to attest messages were sent to this chain.

• _signatureThreshold

  • Control: Arbitrary.

  • Constraints: None.

  • Impact: Number of required signatures to validate a message.

• _supportedChains

  • Control: Arbitrary.

  • Constraints: None.

  • Impact: Array of supported chains.

Branches and code coverage

Intended branches

• Set the contract's settings.

  Test coverage

Negative behavior

• Revert if this function is called more than once.

  Negative test

• Revert if provided signer address is zero.

  Negative test