Trait FailurePersistence
pub trait FailurePersistence:
Send
+ Sync
+ Debug {
// Required methods
fn box_clone(&self) -> Box<dyn FailurePersistence>;
fn eq(&self, other: &dyn FailurePersistence) -> bool;
fn as_any(&self) -> &(dyn Any + 'static);
// Provided methods
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,
) { ... }
}
Expand description
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>
fn box_clone(&self) -> Box<dyn FailurePersistence>
Delegate method for producing a trait object usable with Clone
fn eq(&self, other: &dyn FailurePersistence) -> bool
fn eq(&self, other: &dyn FailurePersistence) -> bool
Equality testing delegate required due to constraints of trait objects.
Provided Methods§
fn load_persisted_failures2(
&self,
source_file: Option<&'static str>,
) -> Vec<PersistedSeed>
fn load_persisted_failures2( &self, source_file: Option<&'static str>, ) -> Vec<PersistedSeed>
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]>
👎Deprecated
fn load_persisted_failures( &self, source_file: Option<&'static str>, ) -> Vec<[u8; 16]>
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,
)
fn save_persisted_failure2( &mut self, source_file: Option<&'static str>, seed: PersistedSeed, shrunken_value: &dyn Debug, )
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.
Trait Implementations§
§impl Clone for Box<dyn FailurePersistence>
impl Clone for Box<dyn FailurePersistence>
§fn clone(&self) -> Box<dyn FailurePersistence>
fn clone(&self) -> Box<dyn FailurePersistence>
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read more