Module fuzzcheck::mutators

This crate provides a range of mutators that can be used to run structure-aware fuzz tests using the fuzzcheck crate. It also provides the DefaultMutator trait, which assigns a default mutator to a type:

use fuzzcheck::DefaultMutator;
let mutator = <Vec<Vec<Option<Box<u16>>>>>::default_mutator();

The following procedural macros are provided:

• #[derive(DefaultMutator)] creates a mutator for a non-recursive struct or enum and makes it its default mutator.
• make_mutator! { .. } creates a mutator for an arbitrary struct or enum. It can be parameterized to do more than what #[derive(DefaultMutator)] allows.
• make_basic_tuple_mutator!(N) creates a mutator for tuples of N elements. For small values of N, these mutators are already available in the tuples module

This crate provides grammar-based string mutators.

Modules

alternation

bool

boxed

char

dictionary

either

enums

fixed_len_vector

grammar

incremental_map

integer

integer_within_range

map

never

num

option

ordering

range

recursive

result

testing_utilities

tuples

unit

vector

vose_alias

wrapper

Macros

make_basic_tuple_mutator

make_mutator

Make a mutator for a custom type, optionally making it the type’s default mutator. The syntax is as follows:

make_single_variant_mutator

make_tuple_type_structure

Traits

DefaultMutator

Derive Macros

DefaultMutator

TupleStructure