Module `arbitrary`

Defines the Arbitrary trait and related free functions and type aliases.

See the Arbitrary trait for more information.

Modules

functor Provides higher order Arbitrary traits. This is mainly for use by proptest_derive.

Arbitrary Arbitrary determines a canonical Strategy for the implementing type.

any Generates a Strategy producing [Arbitrary][trait Arbitrary] values of A. Unlike [arbitrary][fn arbitrary], it should be used for being explicit on what A is. For clarity, this may be a good idea.
any_with Generates a Strategy producing Arbitrary values of A with the given configuration arguments passed in args. Unlike arbitrary_with, it should be used for being explicit on what A is. For clarity, this may be a good idea.
arbitrary Generates a Strategy producing Arbitrary values of A. Works better with type inference than [any::<A>()].
arbitrary_with Generates a Strategy producing Arbitrary values of A with the given configuration arguments passed in args. Works better with type inference than [any_with::<A>(args)].

Mapped A normal map from a strategy of I to O.
ParamsFor ParamsFor allows you to mention the type of Parameters for the input type A without directly using associated types or without resorting to existential types. This way, if implementation of Arbitrary changes, your tests should not break.
SMapped A static map from a strategy of I to O.
StrategyFor StrategyFor allows you to mention the type of Strategy for the input type A without directly using associated types or without resorting to existential types. This way, if implementation of Arbitrary changes, your tests should not break. This can be especially beneficial when the type of Strategy that you are dealing with is very long in name (the case with generics).