| #[cfg(feature = "wasm-bindgen")] |
| use wasm_bindgen_test::*; |
| |
| use getrandom::getrandom; |
| |
| #[cfg(feature = "test-in-browser")] |
| wasm_bindgen_test_configure!(run_in_browser); |
| |
| #[cfg_attr(feature = "wasm-bindgen", wasm_bindgen_test)] |
| #[test] |
| fn test_zero() { |
| // Test that APIs are happy with zero-length requests |
| getrandom(&mut [0u8; 0]).unwrap(); |
| } |
| |
| #[cfg_attr(feature = "wasm-bindgen", wasm_bindgen_test)] |
| #[test] |
| fn test_diff() { |
| let mut v1 = [0u8; 1000]; |
| getrandom(&mut v1).unwrap(); |
| |
| let mut v2 = [0u8; 1000]; |
| getrandom(&mut v2).unwrap(); |
| |
| let mut n_diff_bits = 0; |
| for i in 0..v1.len() { |
| n_diff_bits += (v1[i] ^ v2[i]).count_ones(); |
| } |
| |
| // Check at least 1 bit per byte differs. p(failure) < 1e-1000 with random input. |
| assert!(n_diff_bits >= v1.len() as u32); |
| } |
| |
| #[cfg_attr(feature = "wasm-bindgen", wasm_bindgen_test)] |
| #[test] |
| fn test_huge() { |
| let mut huge = [0u8; 100_000]; |
| getrandom(&mut huge).unwrap(); |
| } |
| |
| #[cfg(any(unix, windows, target_os = "redox", target_os = "fuchsia"))] |
| #[test] |
| fn test_multithreading() { |
| use std::sync::mpsc::channel; |
| use std::thread; |
| |
| let mut txs = vec![]; |
| for _ in 0..20 { |
| let (tx, rx) = channel(); |
| txs.push(tx); |
| |
| thread::spawn(move || { |
| // wait until all the tasks are ready to go. |
| rx.recv().unwrap(); |
| let mut v = [0u8; 1000]; |
| |
| for _ in 0..100 { |
| getrandom(&mut v).unwrap(); |
| thread::yield_now(); |
| } |
| }); |
| } |
| |
| // start all the tasks |
| for tx in txs.iter() { |
| tx.send(()).unwrap(); |
| } |
| } |