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expectest::core

Trait Matcher

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pub trait Matcher<A, E> {
    // Required methods
    fn failure_message(&self, join: Join, actual: &A) -> String;
    fn matches(&self, actual: &A) -> bool;
}
Expand description

A Matcher trait.

Required Methods§

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fn failure_message(&self, join: Join, actual: &A) -> String

Returns a failure message.

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fn matches(&self, actual: &A) -> bool

Checks if an actual value matches an expected value.

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impl Matcher<bool, ()> for BeFalse

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impl Matcher<bool, ()> for BeTrue

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impl<A> Matcher<Option<A>, ()> for BeNone
where A: Debug,

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impl<A> Matcher<Option<A>, ()> for BeSome
where A: Debug,

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impl<A, E> Matcher<A, E> for BeEqualTo<E>
where A: PartialEq<E> + Debug, E: Debug,

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impl<A, E> Matcher<A, E> for PartialOrder<E>
where A: PartialOrd<E> + Debug, E: Debug,

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impl<A, R> Matcher<A, ()> for BeWithinRange<R, A>
where A: PartialOrd<A> + Debug, R: RangeBounds<A> + Debug,

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impl<A, T> Matcher<Result<A, T>, ()> for BeOk
where A: Debug, T: Debug,

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impl<A, T> Matcher<Result<T, A>, ()> for BeErr
where A: Debug, T: Debug,

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impl<A, T> Matcher<A, ()> for BeEmpty
where A: Iterator<Item = T> + Clone,

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impl<A, T> Matcher<A, ()> for HaveCount
where A: Iterator<Item = T> + Clone,

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impl<E> Matcher<E, E> for BeCloseTo<E>
where E: Float + Debug,