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authorDaniel Mueller <deso@posteo.net>2019-01-16 17:26:30 -0800
committerDaniel Mueller <deso@posteo.net>2019-01-16 17:26:30 -0800
commit8350ac6afb2d678b74581000a6aafe1994b72231 (patch)
tree2330da01a806921b3849c9e64d2b9f506495e2c0 /rand/rand_os/tests
parentd6652b913b33e432a748187f9f5623cec1e9926e (diff)
downloadnitrocli-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.rs80
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();
+ }
+}