#### A "professional" attack

Of course, the attackers would not try all this by hand, they would write a program to do it, possibly with thousands or millions of tests per second. And they would get just one extra correct letter at a time.

    assertTrue(Files.exists(temp));
    Files.setLastModifiedTime(temp, FileTime.fromMillis(0));
    assertEquals(0, Files.getLastModifiedTime(temp).toMillis());
    MoreFiles.touch(temp);
    assertThat(Files.getLastModifiedTime(temp).toMillis()).isNotEqualTo(0);
  }

  public void testCreateParentDirectories_root() throws IOException {

  @Test
  fun configureClientDefault() {
    val request =
      Request.Builder()
        .url(server.url("/"))
        .build()
    val timeoutClient =
      client.newBuilder()
        .callTimeout(Duration.ofMillis(456))
        .build()
    val call = timeoutClient.newCall(request)
    assertThat(call.timeout().timeoutNanos())
      .isEqualTo(TimeUnit.MILLISECONDS.toNanos(456))
  }

  @Test
  fun timeoutWritingRequest() {

    lastTimestampNs = result.timestampNs

    if (eventClass != null) {
      assertThat(result).isInstanceOf(eventClass)
    }

    if (elapsedMs != -1L) {
      assertThat(
        TimeUnit.NANOSECONDS.toMillis(actualElapsedNs)
          .toDouble(),
      )
        .isCloseTo(elapsedMs.toDouble(), 100.0)
    }

    return result
  }

  fun recordedEventTypes() = eventSequence.map { it.name }

      stream.takeHeaders()
    }
    val elapsedNanos = System.nanoTime() - startNanos
    awaitWatchdogIdle()
    // 200ms delta
    assertThat(TimeUnit.NANOSECONDS.toMillis(elapsedNanos).toDouble())
      .isCloseTo(500.0, 200.0)
    assertThat(connection.openStreamCount()).isEqualTo(0)

    // Verify the peer received what was expected.

 * quantiles. All algorithms modify the dataset they are given (the cost of a copy to avoid this
 * will be constant across algorithms).
 *
 * @author Pete Gillin
 * @since 20.0
 */
enum QuantilesAlgorithm {

  /**
   * Sorts the dataset, and picks values from it. When computing multiple quantiles, we sort once
   * and pick multiple values.
   */
  SORTING {

                                               value="${f:h(intervalTime)}" class="form-control"
                                               min="0">
                                        <la:message key="labels.millisec"/>
                                    </div>
                                </div>
                                <div class="form-group row">

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);

/**
 * A mutable object which accumulates paired double values (e.g. points on a plane) and tracks some
 * basic statistics over all the values added so far. This class is not thread safe.
 *
 * @author Pete Gillin
 * @since 20.0
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault
public final class PairedStatsAccumulator {

    assertTrue(Files.exists(temp));
    Files.setLastModifiedTime(temp, FileTime.fromMillis(0));
    assertEquals(0, Files.getLastModifiedTime(temp).toMillis());
    MoreFiles.touch(temp);
    assertThat(Files.getLastModifiedTime(temp).toMillis()).isNotEqualTo(0);
  }

  public void testCreateParentDirectories_root() throws IOException {