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Update rand in the stdlib tests, and remove the getrandom feature from it

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Thom Chiovoloni 2022-11-20 16:55:41 -08:00
parent 659e169d37
commit a4bf36e87b
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22 changed files with 508 additions and 480 deletions
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13
library/core/tests/lib.rs
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@ -155,3 +155,16 @@ mod time;
mod tuple;
mod unicode;
mod waker;
/// Copied from `std::test_helpers::test_rng`, see that function for rationale.
#[track_caller]
#[allow(dead_code)] // Not used in all configurations.
pub(crate) fn test_rng() -> rand_xorshift::XorShiftRng {
use core::hash::{BuildHasher, Hash, Hasher};
let mut hasher = std::collections::hash_map::RandomState::new().build_hasher();
core::panic::Location::caller().hash(&mut hasher);
let hc64 = hasher.finish();
let seed_vec = hc64.to_le_bytes().into_iter().chain(0u8..8).collect::<Vec<u8>>();
let seed: [u8; 16] = seed_vec.as_slice().try_into().unwrap();
rand::SeedableRng::from_seed(seed)
}