diff options
Diffstat (limited to 'vendor/fastrand/tests/smoke.rs')
-rw-r--r-- | vendor/fastrand/tests/smoke.rs | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/vendor/fastrand/tests/smoke.rs b/vendor/fastrand/tests/smoke.rs new file mode 100644 index 0000000..7c92ee5 --- /dev/null +++ b/vendor/fastrand/tests/smoke.rs @@ -0,0 +1,143 @@ +#[cfg(all(target_family = "wasm", not(target_os = "wasi")))] +use wasm_bindgen_test::wasm_bindgen_test as test; + +#[cfg(all(target_family = "wasm", not(target_os = "wasi")))] +wasm_bindgen_test::wasm_bindgen_test_configure!(run_in_browser); + +#[test] +fn bool() { + for x in &[false, true] { + while fastrand::bool() != *x {} + } +} + +#[test] +fn u8() { + for x in 0..10 { + while fastrand::u8(..10) != x {} + } + + for x in 200..=u8::MAX { + while fastrand::u8(200..) != x {} + } +} + +#[test] +fn i8() { + for x in -128..-120 { + while fastrand::i8(..-120) != x {} + } + + for x in 120..=127 { + while fastrand::i8(120..) != x {} + } +} + +#[test] +fn u32() { + for n in 1u32..10_000 { + let n = n.wrapping_mul(n); + let n = n.wrapping_mul(n); + if n != 0 { + for _ in 0..1000 { + assert!(fastrand::u32(..n) < n); + } + } + } +} + +#[test] +fn u64() { + for n in 1u64..10_000 { + let n = n.wrapping_mul(n); + let n = n.wrapping_mul(n); + let n = n.wrapping_mul(n); + if n != 0 { + for _ in 0..1000 { + assert!(fastrand::u64(..n) < n); + } + } + } +} + +#[test] +fn u128() { + for n in 1u128..10_000 { + let n = n.wrapping_mul(n); + let n = n.wrapping_mul(n); + let n = n.wrapping_mul(n); + let n = n.wrapping_mul(n); + if n != 0 { + for _ in 0..1000 { + assert!(fastrand::u128(..n) < n); + } + } + } +} + +#[test] +fn fill() { + let mut r = fastrand::Rng::new(); + let mut a = [0u8; 64]; + let mut b = [0u8; 64]; + + r.fill(&mut a); + r.fill(&mut b); + + assert_ne!(a, b); +} + +#[test] +fn rng() { + let mut r = fastrand::Rng::new(); + + assert_ne!(r.u64(..), r.u64(..)); + + r.seed(7); + let a = r.u64(..); + r.seed(7); + let b = r.u64(..); + assert_eq!(a, b); +} + +#[test] +fn rng_init() { + let mut a = fastrand::Rng::new(); + let mut b = fastrand::Rng::new(); + assert_ne!(a.u64(..), b.u64(..)); + + a.seed(7); + b.seed(7); + assert_eq!(a.u64(..), b.u64(..)); +} + +#[test] +fn with_seed() { + let mut a = fastrand::Rng::with_seed(7); + let mut b = fastrand::Rng::new(); + b.seed(7); + assert_eq!(a.u64(..), b.u64(..)); +} + +#[test] +fn choose_multiple() { + let mut a = fastrand::Rng::new(); + let mut elements = (0..20).collect::<Vec<_>>(); + + while !elements.is_empty() { + let chosen = a.choose_multiple(0..20, 5); + for &x in &chosen { + elements.retain(|&y| y != x); + } + } +} + +#[test] +fn choice() { + let items = [1, 4, 9, 5, 2, 3, 6, 7, 8, 0]; + let mut r = fastrand::Rng::new(); + + for item in &items { + while r.choice(&items).unwrap() != item {} + } +} |