Struct test_casing::TestCases

pub struct TestCases<T> { /* private fields */ }

Container for test cases based on a lazily evaluated iterator. Should be constructed using the cases! macro.

Examples

const NUMBER_CASES: TestCases<u32> = cases!([2, 3, 5, 8]);
const MORE_CASES: TestCases<u32> = cases! {
    NUMBER_CASES.into_iter().chain([42, 555])
};

// The `cases!` macro can wrap a statement block:
const COMPLEX_CASES: TestCases<u32> = cases!({
    use rand::{rngs::StdRng, Rng, SeedableRng};

    let mut rng = StdRng::seed_from_u64(123);
    (0..5).map(move |_| rng.gen())
});

Implementations

impl<T> TestCases<T>

pub const fn new(lazy: fn() -> Box<dyn Iterator<Item = T>>) -> Self

Creates a new set of test cases.

Trait Implementations

impl<T> Clone for TestCases<T>

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T> Debug for TestCases<T>

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

Formats the value using the given formatter.

impl<T> IntoIterator for TestCases<T>

type Item = T

The type of the elements being iterated over.

type IntoIter = Box<dyn Iterator<Item = T>>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<T> Copy for TestCases<T>