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author | Daniel Mueller <deso@posteo.net> | 2019-01-16 17:26:30 -0800 |
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committer | Daniel Mueller <deso@posteo.net> | 2019-01-16 17:26:30 -0800 |
commit | 8350ac6afb2d678b74581000a6aafe1994b72231 (patch) | |
tree | 2330da01a806921b3849c9e64d2b9f506495e2c0 /rand/rand_os/tests | |
parent | d6652b913b33e432a748187f9f5623cec1e9926e (diff) | |
download | nitrocli-8350ac6afb2d678b74581000a6aafe1994b72231.tar.gz nitrocli-8350ac6afb2d678b74581000a6aafe1994b72231.tar.bz2 |
Update nitrokey crate to 0.3.3
This change updates the nitrokey crate to version 0.3.3. Along with that
change we update rand to 0.6.4 because rand 0.6.1 does not yet contain a
publicly accessible rand_os. Note that we no longer require all
crates in rand's workspace, but only rand_os and rand_core, which is a
significant reduction in the number of lines of code compiled.
Import subrepo nitrokey/:nitrokey at 7cf747d56ddc0b7eeedc3caf36dcc909907a171c
Import subrepo rand/:rand at 4336232dda03323634b10ec72ddf27914aebc3a2
Diffstat (limited to 'rand/rand_os/tests')
-rw-r--r-- | rand/rand_os/tests/mod.rs | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/rand/rand_os/tests/mod.rs b/rand/rand_os/tests/mod.rs new file mode 100644 index 0000000..2130e16 --- /dev/null +++ b/rand/rand_os/tests/mod.rs @@ -0,0 +1,80 @@ +extern crate rand_os; + +use rand_os::rand_core::RngCore; +use rand_os::OsRng; + +#[test] +fn test_os_rng() { + let mut r = OsRng::new().unwrap(); + + r.next_u32(); + r.next_u64(); + + let mut v1 = [0u8; 1000]; + r.fill_bytes(&mut v1); + + let mut v2 = [0u8; 1000]; + r.fill_bytes(&mut v2); + + 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); +} + +#[test] +fn test_os_rng_empty() { + let mut r = OsRng::new().unwrap(); + + let mut empty = [0u8; 0]; + r.fill_bytes(&mut empty); +} + +#[test] +fn test_os_rng_huge() { + let mut r = OsRng::new().unwrap(); + + let mut huge = [0u8; 100_000]; + r.fill_bytes(&mut huge); +} + +#[cfg(not(any(target_arch = "wasm32", target_arch = "asmjs")))] +#[test] +fn test_os_rng_tasks() { + 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(); + + // deschedule to attempt to interleave things as much + // as possible (XXX: is this a good test?) + let mut r = OsRng::new().unwrap(); + thread::yield_now(); + let mut v = [0u8; 1000]; + + for _ in 0..100 { + r.next_u32(); + thread::yield_now(); + r.next_u64(); + thread::yield_now(); + r.fill_bytes(&mut v); + thread::yield_now(); + } + }); + } + + // start all the tasks + for tx in txs.iter() { + tx.send(()).unwrap(); + } +} |