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expectest::matchers

Struct BeSome

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pub struct BeSome;
Expand description

A matcher for be_some assertions for Option<T> types.

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impl BeSome

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pub fn value<E>(self, v: E) -> BeSomeValue<E>

Returns a new BeSomeValue matcher.

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

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

Returns a failure message.
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fn matches(&self, actual: &Option<A>) -> bool

Checks if an actual value matches an expected value.

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impl Freeze for BeSome

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impl RefUnwindSafe for BeSome

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impl Send for BeSome

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impl Sync for BeSome

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impl Unpin for BeSome

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impl UnwindSafe for BeSome

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.