uncomment benchmarks and tests

benches/chacha.rs

@@ -0,0 +1,28 @@
+#![feature(test)]
+
+extern crate test;
+
+use test::{black_box, Bencher};
+use chacha::do_chacha;
+
+fn few_u32_to_many_u8(data: &[u32; 16]) -> [u8; 64] {
+    let mut out = [0u8; 64];
+
+    for (i, c) in data.iter().enumerate() {
+        out[i * 4..][..4].copy_from_slice(&u32::to_ne_bytes(*c));
+    }
+
+    out
+}
+
+#[bench]
+fn bench_chacha_operation(b: &mut Bencher) {
+    // somewhat random data
+    let data = [69u8; 64];
+
+    let key = &[0u8; 32];
+
+    b.iter(|| {
+        black_box(do_chacha(data.as_slice(), key, [0; 3], 0, 20));
+    })
+}