package spullara;
import org.junit.Test;
import spullara.util.Benchmarker;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;
public class BenchmarkTest {
@Test
public void testVsFor() throws Exception {
Benchmarker bm = new Benchmarker(100000);
List<String> list = new ArrayList<>();
for (int i = 0; i < 100000; i++) {
list.add("foorbar" + i);
}
AtomicInteger ai = new AtomicInteger();
bm.execute("for loop", () -> {
int i = 0;
for (String s : list) {
if (s.endsWith("1")) {
i++;
}
}
ai.addAndGet(i);
});
bm.execute("sequential stream", () -> {
ai.addAndGet((int) list.stream().filter(v -> v.endsWith("1")).count());
});
bm.execute("parallel stream", () -> {
ai.addAndGet((int) list.stream().parallel().filter(v -> v.endsWith("1")).count());
});
bm.report();
}
}