Attribute Macro test

#[test]

Defines a unit test that provides access to Stylus’ execution context.

Internally, this is a thin wrapper over #[test] that gives access to affordances like contract storage and msg::sender. If you don’t need them, you can pass no arguments to the test function or simply use #[test] instead of #[motsu::test].

Examples

#[cfg(test)]
mod tests {
    #[motsu::test]
    fn reads_balance(contract: Erc20) {
       let balance = contract.balance_of(Address::ZERO);
       assert_eq!(U256::ZERO, balance);

       let owner = msg::sender();
       let one = U256::from(1);
       contract._balances.setter(owner).set(one);
       let balance = contract.balance_of(owner);
       assert_eq!(one, balance);
    }
}

#[cfg(test)]
mod tests {
    #[motsu::test]
    fn t() { // If no params, it expands to a `#[test]`.
        ...
    }
}