Executing synchronous (non-async) scenarios concurrently

[kevgo]

I prefer writing my step implementations as synchronous code (instead of async). Example:

use std::time::Duration;

#[given("a satiated cat")]
fn satiated_cat(world: &mut AnimalWorld) {
    std::thread::sleep(Duration::from_millis(1000));
    world.cat.hungry = false;
}

However, doing so executes all scenarios sequentially. I assume that's because Cucumber-Rust works asynchronously internally and my sync step implementations block the event loop. Is it possible to configure Cucumber-Rust to execute my Scenarios with sync step implementations concurrently?

[ilslv]

@kevgo you can make your sync functions async by using tokio::spawn_blocking/tokio::block_in_place. You may also want to check something like async_scoped and moro for thread::scope-like API. We would like to do it ourselves, but unfortunately currently there is no runtime-agnostic way to do it.