Trait proptest::test_runner::FailurePersistence[−][src]

pub trait FailurePersistence: Send + Sync + Debug {
    fn box_clone(&self) -> Box<dyn FailurePersistence>ⓘ
Notable traits for Box<I, A>
impl<I, A> Iterator for Box<I, A> where
    I: Iterator + ?Sized,
    A: Allocator,     type Item = <I as Iterator>::Item;impl<F, A> Future for Box<F, A> where
    A: Allocator + 'static,
    F: Unpin + Future + ?Sized,     type Output = <F as Future>::Output;
;

    fn eq(&self, other: &dyn FailurePersistence) -> bool;

    fn as_any(&self) -> &dyn Any;

    fn load_persisted_failures2(
        &self, 
        source_file: Option<&'static str>
    ) -> Vec<PersistedSeed> { ... }

    fn load_persisted_failures(
        &self, 
        source_file: Option<&'static str>
    ) -> Vec<[u8; 16]> { ... }

    fn save_persisted_failure2(
        &mut self, 
        source_file: Option<&'static str>, 
        seed: PersistedSeed, 
        shrunken_value: &dyn Debug
    ) { ... }

    fn save_persisted_failure(
        &mut self, 
        source_file: Option<&'static str>, 
        seed: [u8; 16], 
        shrunken_value: &dyn Debug
    ) { ... }
}

Provides external persistence for historical test failures by storing seeds.

Note: Implementing load_persisted_failures and save_persisted_failures is deprecated and these methods will be removed in proptest 0.10.0. Instead, implement load_persisted_failures2 and save_persisted_failures2.

Required methods

fn box_clone(&self) -> Box<dyn FailurePersistence>ⓘ

Notable traits for Box<I, A>

impl<I, A> Iterator for Box<I, A> where
    I: Iterator + ?Sized,
    A: Allocator,  type Item = <I as Iterator>::Item;impl<F, A> Future for Box<F, A> where
    A: Allocator + 'static,
    F: Unpin + Future + ?Sized,  type Output = <F as Future>::Output;
[src]

Delegate method for producing a trait object usable with Clone

fn eq(&self, other: &dyn FailurePersistence) -> bool[src]

Equality testing delegate required due to constraints of trait objects.

fn as_any(&self) -> &dyn Any[src]

Assistant method for trait object comparison.

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Provided methods

fn load_persisted_failures2(
    &self,
    source_file: Option<&'static str>
) -> Vec<PersistedSeed>[src]

Supply seeds associated with the given source_file that may be used by a TestRunner's random number generator in order to consistently recreate a previously-failing Strategy-provided value.

The default implementation is for backwards compatibility. It delegates to load_persisted_failures and converts the results into XorShift seeds.

fn load_persisted_failures(
    &self,
    source_file: Option<&'static str>
) -> Vec<[u8; 16]>[src]

👎 Deprecated

Use load_persisted_failures2 instead.

This function inadvertently exposes the implementation of seeds prior to Proptest 0.9.1 and only works with XorShift seeds.

fn save_persisted_failure2(
    &mut self,
    source_file: Option<&'static str>,
    seed: PersistedSeed,
    shrunken_value: &dyn Debug
)[src]

Store a new failure-generating seed associated with the given source_file.

The default implementation is for backwards compatibility. It delegates to save_persisted_failure if seed is a XorShift seed.

fn save_persisted_failure(
    &mut self,
    source_file: Option<&'static str>,
    seed: [u8; 16],
    shrunken_value: &dyn Debug
)[src]

👎 Deprecated

Use save_persisted_failures2 instead.

This function inadvertently exposes the implementation of seeds prior to Proptest 0.9.1 and only works with XorShift seeds.

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Trait Implementations

impl<'a, 'b> PartialEq<dyn FailurePersistence + 'b> for dyn FailurePersistence + 'a[src]

Implementors

impl FailurePersistence for MapFailurePersistence[src]

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