use crate::{driver::Driver, TypeGenerator, TypeGeneratorWithParams, ValueGenerator};
#[derive(Debug)]
pub struct BooleanGenerator {
weight: f32,
}
impl Default for BooleanGenerator {
fn default() -> Self {
Self { weight: 0.5 }
}
}
impl ValueGenerator for bool {
type Output = bool;
fn generate<D: Driver>(&self, _driver: &mut D) -> Option<Self::Output> {
Some(*self)
}
}
impl BooleanGenerator {
pub fn weight(mut self, weight: f32) -> Self {
assert!(0.0 <= weight && weight <= 1.0);
self.weight = weight;
self
}
}
impl TypeGeneratorWithParams for bool {
type Output = BooleanGenerator;
fn gen_with() -> Self::Output {
Default::default()
}
}
impl ValueGenerator for BooleanGenerator {
type Output = bool;
fn generate<D: Driver>(&self, driver: &mut D) -> Option<Self::Output> {
let value = driver.gen::<u32>()? as f32 / core::u32::MAX as f32;
Some(value < self.weight)
}
}
impl TypeGenerator for bool {
fn generate<D: Driver>(driver: &mut D) -> Option<Self> {
Some(driver.gen::<u8>()? > (core::u8::MAX / 2))
}
}
#[test]
fn bool_test() {
let _ = generator_test!(gen::<bool>());
}
#[test]
fn bool_with_test() {
let _ = generator_test!(gen::<bool>().with().weight(0.1));
}