Function proptest::sample::select [−][src]
pub fn select<T: Clone + Debug + 'static>(
values: impl Into<Cow<'static, [T]>>
) -> Select<T>
Create a strategy which uniformly selects one value from values
.
values
should be a &'static [T]
or a Vec<T>
, or potentially another
type that can be coerced to Cow<'static,[T]>
.
This is largely equivalent to making a Union
of a bunch of Just
strategies, but is substantially more efficient and shrinks by binary
search.
If values
is also to be generated by a strategy, see
Index
for a more efficient way to select values than
using prop_flat_map()
.