func testBSearch(sorted []int, t *testing.T) {
expected := rand.Intn(len(sorted) - 1)
target := sorted[expected]
found := binarysearch.Search(sorted, target)
if found != expected {
t.Fatalf("expected %d, actual is %d", expected, found)
}
}
func benchmarkBSearch(sorted []int, b *testing.B) {
for j := 0; j < b.N; j++ {
target := sorted[rand.Intn(len(sorted)-1)]
binarysearch.Search(sorted, target)
}
}