Struct proptest::strategy::Union [] [src]

pub struct Union<T: Strategy> { /* fields omitted */ }

A Strategy which picks from one of several delegate Stragegys.

See Strategy::prop_union().

Methods

impl<T: Strategy> Union<T>
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Create a strategy which selects uniformly from the given delegate strategies.

When shrinking, after maximal simplification of the chosen element, the strategy will move to earlier options and continue simplification with those.

Panics

Panics if options is empty.

Add other as an additional alternate strategy.

Trait Implementations

impl<T: Clone + Strategy> Clone for Union<T>
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Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

impl<T: Debug + Strategy> Debug for Union<T>
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Formats the value using the given formatter.

impl<T: Strategy> Strategy for Union<T>
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The value tree generated by this Strategy. Read more

Generate a new value tree from the given runner. Read more

Returns a strategy which produces values transformed by the function fun. Read more

Maps values produced by this strategy into new strategies and picks values from those strategies. Read more

Maps values produced by this strategy into new strategies and picks values from those strategies while considering the new strategies to be independent. Read more

Similar to prop_ind_flat_map(), but produces 2-tuples with the input generated from self in slot 0 and the derived strategy in slot 1. Read more

Returns a strategy which only produces values accepted by fun. Read more

Returns a strategy which picks uniformly from self and other. Read more

Generate a recursive structure with self items as leaves. Read more

Erases the type of this Strategy so it can be passed around as a simple trait object. Read more

Wraps this strategy to prevent values from being subject to shrinking. Read more