Function soroban_sdk::testutils::arbitrary::fuzz_catch_panic

pub fn fuzz_catch_panic<F, R>(f: F) -> Result<R>
where
    F: FnOnce() -> R,

Available on crate feature testutils only.

Catch panics within a fuzz test.

The cargo-fuzz test harness turns panics into test failures, immediately aborting the process.

This function catches panics while temporarily disabling the cargo-fuzz panic handler.

Example

use soroban_sdk::{Address, Env};
use soroban_sdk::testutils::arbitrary::{Arbitrary, SorobanArbitrary};

#[derive(Arbitrary, Debug)]
struct FuzzDeposit {
    deposit_amount: i128,
    deposit_address: <Address as SorobanArbitrary>::Prototype,
}

fuzz_target!(|input: FuzzDeposit| {
    let env = Env::default();

    let contract = ExampleContract::new(env, &env.register_contract(None, ExampleContract {}));

    let addresses: Address = input.deposit_address.into_val(&env);
    let r = fuzz_catch_panic(|| {
        contract.deposit(deposit_address, input.deposit_amount);
    });
});