Function xpct::iter_try_map

pub fn iter_try_map<'a, In, Out, IntoIter>(
    func: impl Fn(In) -> Result<Out> + 'a
) -> Matcher<'a, IntoIter, Vec<Out>>where
    In: 'a,
    Out: 'a,
    IntoIter: IntoIterator<Item = In> + 'a,

Fallibly map each value of an iterator by applying a function to it.

This does the same thing as Assertion::iter_try_map.

This matcher always succeeds as long as func returns Ok, even when negated. Therefore negating it has no effect.

Examples

use xpct::{expect, iter_try_map, consist_of};

let small_integers: [u64; 2] = [41, 57];

expect!(small_integers)
    .to(iter_try_map(|value| Ok(u32::try_from(value)?)))
    .to(consist_of([41u32, 57u32]));