package runtimebench

import (
	"crypto/sha256"
	"testing"
	"time"
)

// Run with -cpu=1,4. Both workloads use the same parallel driver; one consumes
// execution time, the other parks awaiting a timer (a controlled wait, not a network benchmark).
func BenchmarkWork(b *testing.B) {
	for _, kind := range []string{"cpu", "wait"} {
		b.Run(kind, func(b *testing.B) {
			b.RunParallel(func(pb *testing.PB) {
				var sum [32]byte
				for pb.Next() {
					if kind == "cpu" {
						for range 1024 {
							sum = sha256.Sum256(sum[:])
						}
					} else {
						time.Sleep(time.Millisecond)
					}
				}
			})
		})
	}
}