Struct homestar_runtime::test_utils::Rvg

pub struct Rvg { /* private fields */ }

Available on crate feature test-utils only.

A random value generator (RVG), which, given proptest strategies, will generate random values based on those strategies.

Implementations

impl Rvg

pub fn new() -> Self

Creates a new RVG with the default random number generator.

pub fn deterministic() -> Self

Creates a new RVG with a deterministic random number generator, using the same seed across test runs.

pub fn sample<S: Strategy>(&mut self, strategy: &S) -> S::Value

Samples a value for the given strategy.

Example

use homestar_runtime::test_utils::Rvg;

let mut rvg = Rvg::new();
let int = rvg.sample(&(0..100i32));

pub fn sample_vec<S: Strategy>( &mut self, strategy: &S, len: usize ) -> Vec<S::Value>

Samples a vec of some length with a value for the given strategy.

Example

use homestar_runtime::test_utils::Rvg;

let mut rvg = Rvg::new();
let ints = rvg.sample_vec(&(0..100i32), 10);

Trait Implementations

impl Debug for Rvg

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Rvg

fn default() -> Rvg

Returns the “default value” for a type.