Struct ContainsMatcher

pub struct ContainsMatcher<InnerMatcherT> { /* private fields */ }

A matcher which matches a container containing one or more elements a given inner Matcher matches.

Implementations

impl<InnerMatcherT> ContainsMatcher<InnerMatcherT>

pub fn times(self, count: impl Matcher<usize> + 'static) -> Self

Configures this instance to match containers which contain a number of matching items matched by count.

For example, to assert that exactly three matching items must be present, use:

contains(...).times(eq(3))

One can also use times(eq(0)) to test for the absence of an item matching the expected value.

Trait Implementations

impl<T: Debug + Copy, InnerMatcherT: Matcher<T>, ContainerT> Matcher<ContainerT> for ContainsMatcher<InnerMatcherT>

where ContainerT: IntoIterator<Item = T> + Debug + Copy,

fn matches(&self, actual: ContainerT) -> MatcherResult

Returns whether the condition matches the datum actual.

fn explain_match(&self, actual: ContainerT) -> Description

Prepares a String describing how the expected value encoded in this instance matches or does not match the given value actual.

fn describe(&self, matcher_result: MatcherResult) -> Description

Returns a description of self or a negative description if matcher_result is DoesNotMatch.

impl<InnerMatcherT> MatcherBase for ContainsMatcher<InnerMatcherT>

fn and<Right>(self, right: Right) -> ConjunctionMatcher<Self, Right>

where Self: Sized,

Constructs a matcher that matches both self and right.

fn or<Right>(self, right: Right) -> DisjunctionMatcher<Self, Right>

where Self: Sized,

Constructs a matcher that matches when at least one of self or right matches the input.