Macro tokio_test::assert_ready_eq

macro_rules! assert_ready_eq {
    ($e:expr, $expect:expr) => { ... };
    ($e:expr, $expect:expr, $($msg:tt),+) => { ... };
}

Assert if a poll is ready and check for equality on the value

This will invoke panic! if the provided Poll does not evaluate to Poll::Ready at runtime and the value produced does not partially equal the expected value.

Custom Messages

This macro has a second form, where a custom panic message can be provided with or without arguments for formatting.

Examples

use std::future::Future;
use futures_util::{future, pin_mut};
use tokio_test::{assert_ready_eq, task};

task::mock(|cx| {
    let fut = future::ready(42);

    pin_mut!(fut);
    assert_ready_eq!(fut.poll(cx), 42);
})