Struct proptest::strategy::PerturbValueTree
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pub struct PerturbValueTree<S, F> { /* fields omitted */ }
ValueTree
perturbation adaptor.
See Strategy::prop_perturb()
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Trait Implementations
impl<S: Debug, F> Debug for PerturbValueTree<S, F>
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impl<S: Clone, F> Clone for PerturbValueTree<S, F>
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fn clone(&self) -> Self
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl<S: ValueTree, O: Debug, F: Fn(S::Value, XorShiftRng) -> O> ValueTree for PerturbValueTree<S, F>
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type Value = O
The type of the value produced by this ValueTree
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fn current(&self) -> O
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Returns the current value.
fn simplify(&mut self) -> bool
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Attempts to simplify the current value. Notionally, this sets the "high" value to the current value, and the current value to a "halfway point" between high and low, rounding towards low. Read more
fn complicate(&mut self) -> bool
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Attempts to partially undo the last simplification. Notionally, this sets the "low" value to one plus the current value, and the current value to a "halfway point" between high and the new low, rounding towards low. Read more