Struct proptest::test_runner::TestRng
source · pub struct TestRng { /* private fields */ }Expand description
Proptest’s random number generator.
Currently, this is just a wrapper around XorShiftRng.
Trait Implementations§
Auto Trait Implementations§
impl RefUnwindSafe for TestRng
impl Send for TestRng
impl Sync for TestRng
impl Unpin for TestRng
impl UnwindSafe for TestRng
Blanket Implementations§
source§impl<R> Rng for Rwhere
R: RngCore + ?Sized,
impl<R> Rng for Rwhere
R: RngCore + ?Sized,
source§fn gen<T>(&mut self) -> Twhere
Standard: Distribution<T>,
fn gen<T>(&mut self) -> Twhere
Standard: Distribution<T>,
source§fn gen_range<T>(&mut self, low: T, high: T) -> Twhere
T: PartialOrd<T> + SampleUniform,
fn gen_range<T>(&mut self, low: T, high: T) -> Twhere
T: PartialOrd<T> + SampleUniform,
Generate a random value in the range [
low, high), i.e. inclusive of
low and exclusive of high. Read moresource§fn sample<T, D>(&mut self, distr: D) -> Twhere
D: Distribution<T>,
fn sample<T, D>(&mut self, distr: D) -> Twhere
D: Distribution<T>,
Sample a new value, using the given distribution. Read more
source§fn sample_iter<T, D, 'a>(&'a mut self, distr: &'a D) -> DistIter<'a, D, Self, T>where
D: Distribution<T>,
Self: Sized,
fn sample_iter<T, D, 'a>(&'a mut self, distr: &'a D) -> DistIter<'a, D, Self, T>where
D: Distribution<T>,
Self: Sized,
Create an iterator that generates values using the given distribution. Read more
source§fn fill<T>(&mut self, dest: &mut T)where
T: AsByteSliceMut + ?Sized,
fn fill<T>(&mut self, dest: &mut T)where
T: AsByteSliceMut + ?Sized,
Fill
dest entirely with random bytes (uniform value distribution),
where dest is any type supporting AsByteSliceMut, namely slices
and arrays over primitive integer types (i8, i16, u32, etc.). Read moresource§fn try_fill<T>(&mut self, dest: &mut T) -> Result<(), Error>where
T: AsByteSliceMut + ?Sized,
fn try_fill<T>(&mut self, dest: &mut T) -> Result<(), Error>where
T: AsByteSliceMut + ?Sized,
Fill
dest entirely with random bytes (uniform value distribution),
where dest is any type supporting AsByteSliceMut, namely slices
and arrays over primitive integer types (i8, i16, u32, etc.). Read moresource§fn gen_bool(&mut self, p: f64) -> bool
fn gen_bool(&mut self, p: f64) -> bool
Return a bool with a probability
p of being true. Read moresource§fn choose<T, 'a>(&mut self, values: &'a [T]) -> Option<&'a T>
fn choose<T, 'a>(&mut self, values: &'a [T]) -> Option<&'a T>
Return a random element from
values. Read moresource§fn choose_mut<T, 'a>(&mut self, values: &'a mut [T]) -> Option<&'a mut T>
fn choose_mut<T, 'a>(&mut self, values: &'a mut [T]) -> Option<&'a mut T>
Return a mutable pointer to a random element from
values. Read moresource§fn gen_iter<T>(&mut self) -> Generator<T, &mut Self>where
Standard: Distribution<T>,
fn gen_iter<T>(&mut self) -> Generator<T, &mut Self>where
Standard: Distribution<T>,
👎Deprecated since 0.5.0: use Rng::sample_iter(&Standard) instead
Return an iterator that will yield an infinite number of randomly
generated items. Read more
source§fn gen_weighted_bool(&mut self, n: u32) -> bool
fn gen_weighted_bool(&mut self, n: u32) -> bool
👎Deprecated since 0.5.0: use gen_bool instead
Return a bool with a 1 in n chance of true Read more
source§fn gen_ascii_chars(&mut self) -> AsciiGenerator<&mut Self>
fn gen_ascii_chars(&mut self) -> AsciiGenerator<&mut Self>
👎Deprecated since 0.5.0: use sample_iter(&Alphanumeric) instead
Return an iterator of random characters from the set A-Z,a-z,0-9. Read more