*/
  static void delay(long millis) throws InterruptedException {
    long startTime = System.nanoTime();
    long ns = millis * 1000 * 1000;
    for (; ; ) {
      if (millis > 0L) Thread.sleep(millis);
      else // too short to sleep
      Thread.yield();
      long d = ns - (System.nanoTime() - startTime);
      if (d > 0L) millis = d / (1000 * 1000);
      else break;
    }
  }

import junit.framework.TestCase;

/**
 * Unit test for {@link AbstractService}.
 *
 * @author Jesse Wilson
 */
public class AbstractServiceTest extends TestCase {

  private static final long LONG_TIMEOUT_MILLIS = 10000;
  private Thread executionThread;
  private Throwable thrownByExecutionThread;

  public void testNoOpServiceStartStop() throws Exception {
    NoOpService service = new NoOpService();

    final List<String> events = Lists.newArrayList();

    @Override
    public long readMicros() {
      return NANOSECONDS.toMicros(instant);
    }

    void sleepMillis(int millis) {
      sleepMicros("U", MILLISECONDS.toMicros(millis));
    }

    void sleepMicros(String caption, long micros) {
      instant += MICROSECONDS.toNanos(micros);

import java.nio.ByteOrder;
import junit.framework.TestCase;

/**
 * Tests for {@link PairedStats}. This tests instances created by {@link
 * PairedStatsAccumulator#snapshot}.
 *
 * @author Pete Gillin
 */
public class PairedStatsTest extends TestCase {

  public void testCount() {
    assertThat(EMPTY_PAIRED_STATS.count()).isEqualTo(0);
    assertThat(ONE_VALUE_PAIRED_STATS.count()).isEqualTo(1);

import java.nio.ByteOrder;
import junit.framework.TestCase;

/**
 * Tests for {@link PairedStats}. This tests instances created by {@link
 * PairedStatsAccumulator#snapshot}.
 *
 * @author Pete Gillin
 */
public class PairedStatsTest extends TestCase {

  public void testCount() {
    assertThat(EMPTY_PAIRED_STATS.count()).isEqualTo(0);
    assertThat(ONE_VALUE_PAIRED_STATS.count()).isEqualTo(1);

 * StatsAccumulator#add} and {@link StatsAccumulator#addAll} methods. For tests of the {@link
 * StatsAccumulator#snapshot} method which returns {@link Stats} instances, see {@link StatsTest}.
 *
 * @author Pete Gillin
 */
public class StatsAccumulatorTest extends TestCase {

  private StatsAccumulator emptyAccumulator;
  private StatsAccumulator emptyAccumulatorByAddAllEmptyIterable;

import java.util.DoubleSummaryStatistics;
import junit.framework.TestCase;

/**
 * Tests for {@link Stats}. This tests instances created by both {@link Stats#of} and {@link
 * StatsAccumulator#snapshot}.
 *
 * @author Pete Gillin
 */
public class StatsTest extends TestCase {

  public void testCount() {
    assertThat(EMPTY_STATS_VARARGS.count()).isEqualTo(0);
    assertThat(EMPTY_STATS_ITERABLE.count()).isEqualTo(0);

   */
  static void delay(long millis) throws InterruptedException {
    long startTime = System.nanoTime();
    long ns = millis * 1000 * 1000;
    for (; ; ) {
      if (millis > 0L) Thread.sleep(millis);
      else // too short to sleep
      Thread.yield();
      long d = ns - (System.nanoTime() - startTime);
      if (d > 0L) millis = d / (1000 * 1000);
      else break;
    }
  }

import junit.framework.TestCase;

/**
 * Unit test for {@link AbstractService}.
 *
 * @author Jesse Wilson
 */
public class AbstractServiceTest extends TestCase {

  private static final long LONG_TIMEOUT_MILLIS = 10000;
  private Thread executionThread;
  private Throwable thrownByExecutionThread;

  public void testNoOpServiceStartStop() throws Exception {
    NoOpService service = new NoOpService();

import java.util.stream.DoubleStream;

/**
 * Inputs, expected outputs, and helper methods for tests of {@link StatsAccumulator}, {@link
 * Stats}, {@link PairedStatsAccumulator}, and {@link PairedStats}.
 *
 * @author Pete Gillin
 */
class StatsTesting {
  // TODO(cpovirk): Convince myself that this larger error makes sense.
  static final double ALLOWED_ERROR = isAndroid() ? .25 : 1e-10;

  // Inputs and their statistics: