[Feature]: Make Account Creation Within #[motsu::test] Deterministic

[0xNeshi]

What is the feature you would like to see?

Blocked by #27

---

We can make account instantiation more ergonomic by taking advantage of instantiating Account from private key str slices.

This test case signature:

#[motsu::test]
fn some_test(erc20: Contract<Erc20>, alice: Account, bob: Account) {
    ...
}

Can be desugared to:

#[test]
fn some_test() {
    let test = |erc20: Contract<Erc20>, alice: Account, bob: Account| {
          ... 
    };
    test(Contract::<Erc20>::from_str("erc20"), Account::from_str("alice"), Account::from_str("bob"));
}

Original idea: #14 (comment)

Contribution Guidelines

• I agree to follow this project's Contribution Guidelines