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Move some bench tests back from libtest #59304

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Merged
merged 1 commit into from
Mar 23, 2019
Merged

Move some bench tests back from libtest #59304

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25 changes: 25 additions & 0 deletions src/libtest/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -44,3 +44,28 @@ pub fn black_box<T>(dummy: T) -> T {
pub fn black_box<T>(dummy: T) -> T {
dummy
}

#[cfg(test)]
mod tests {
use crate::Bencher;
use libtest::stats::Stats;

#[bench]
pub fn sum_three_items(b: &mut Bencher) {
b.iter(|| {
[1e20f64, 1.5f64, -1e20f64].sum();
})
}

#[bench]
pub fn sum_many_f64(b: &mut Bencher) {
let nums = [-1e30f64, 1e60, 1e30, 1.0, -1e60];
let v = (0..500).map(|i| nums[i % 5]).collect::<Vec<_>>();
b.iter(|| {
v.sum();
})
}

#[bench]
pub fn no_iter(_: &mut Bencher) {}
}