Complete exercise: testing

exercise/testing/benches/somename.rs

@@ -0,0 +1,9 @@
+use criterion::{black_box, criterion_group, criterion_main, Criterion};
+use testing::sploosh;
+
+pub fn sploosh_benchmark(c: &mut Criterion) {
+    c.bench_function("sploosh", |b| b.iter(|| sploosh(black_box(8), black_box(9), black_box(10))));
+}
+
+criterion_group!(benches, sploosh_benchmark);
+criterion_main!(benches);