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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /vendor/getrandom-0.1.14/tests | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/getrandom-0.1.14/tests')
-rw-r--r-- | vendor/getrandom-0.1.14/tests/common.rs | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/vendor/getrandom-0.1.14/tests/common.rs b/vendor/getrandom-0.1.14/tests/common.rs new file mode 100644 index 000000000..afefa0312 --- /dev/null +++ b/vendor/getrandom-0.1.14/tests/common.rs @@ -0,0 +1,68 @@ +#[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(); + } +} |