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 and deploys precompiles. If you don’t need them, you can simply use #[test] instead of #[motsu::test].

Examples

#[cfg(test)]
mod tests {
    #[motsu::test]
    fn autosetup(contract: Contract<Erc20>, alice: Address) {
        // contract and alice is already set up, and precompiled
        // contracts are deployed.

        // ...
    }

    #[motsu::test]
    fn no_affordances() {
        // only precompiled contracts are deployed, contract and alice
        // need to be manually instantiated.
        let contract = Contract::<Erc20>::from_tag("contract");
        let alice = Address::from_tag("alice");

        // ...
    }

    #[test]
    fn manual_setup() {
        // CAUTION: precompiles will not be deployed, use only if you're
        // sure you don't need them.
        // contract and alice still need to be manually instantiated.
        let contract = Contract::<Erc20>::from_tag("contract");
        let alice = Address::from_tag("alice");

        // ...
    }
}