Trait Matcher

pub trait Matcher<'a, T: 'a> {
    // Required method
    fn check(&self, actual: &'a T) -> MatchResult;
}

The trait which has to be implemented by all matchers.

Required Methods

fn check(&self, actual: &'a T) -> MatchResult

Checks the passed value if it satisfies the Matcher.

Values are always taken as immutable reference as the actual value shouldn’t be changed by the matcher.

Implementors

impl<'a, K, V, M> Matcher<'a, M> for HasEntry<K, V>

where V: PartialEq + Debug + 'a, K: PartialEq + Debug + 'a, &'a M: IntoIterator<Item = (&'a K, &'a V)> + 'a,

impl<'a, K, V, M> Matcher<'a, M> for HasKey<K>

where V: PartialEq + Debug + 'a, K: PartialEq + Debug + 'a, &'a M: IntoIterator<Item = (&'a K, &'a V)> + 'a,

impl<'a, K, V, M> Matcher<'a, M> for HasValue<V>

where V: PartialEq + Debug + 'a, K: PartialEq + Debug + 'a, &'a M: IntoIterator<Item = (&'a K, &'a V)> + 'a,

impl<'a, T> Matcher<'a, T> for ContainedIn<T>

where T: PartialEq + Debug + 'a,

impl<'a, T, I> Matcher<'a, I> for ContainsInAnyOrder<T>

where T: PartialEq + Debug + 'a, &'a I: IntoIterator<Item = &'a T> + Debug + 'a,

impl<'a, T, I: 'a> Matcher<'a, I> for ContainsInOrder<T>

where T: PartialEq + Debug + 'a, &'a I: IntoIterator<Item = &'a T> + Debug + 'a,

impl<'a, T, I: 'a> Matcher<'a, I> for ContainsSubset<T>

where T: PartialEq + Debug + 'a, &'a I: IntoIterator<Item = &'a T> + Debug + 'a,

impl<'a, T: 'a> Matcher<'a, T> for All<'a, T>

impl<'a, T: 'a> Matcher<'a, T> for Any<'a, T>

impl<'a, T: 'a, F> Matcher<'a, T> for F

where F: Fn(&'a T) -> MatchResult + ?Sized,

A closure can be used as a Matcher.

The closure must be repeatably callable in case that the matcher is combined with another matcher.