import com.google.common.collect.Ordering;
import com.google.common.primitives.UnsignedLong;
import java.util.Arrays;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit test for Fingerprint2011.
 *
 * @author ******@****.*** (Kyle Maddison)
 */
@NullUnmarked
public class Fingerprint2011Test extends TestCase {

  // Length of the sample string to produce

import jcifs.CIFSException;
import jcifs.Configuration;
import jcifs.ResourceNameFilter;
import jcifs.SmbConstants;
import jcifs.SmbResource;
import jcifs.SmbResourceLocator;

/**
 * Unit tests for NetServerEnumIterator.
 * Tests focus on constructor validation and basic iterator contract.
 */
@ExtendWith(MockitoExtension.class)
@MockitoSettings(strictness = Strictness.LENIENT)
class NetServerEnumIteratorTest {

    on Linux, with some additional testing on newer JDKs and on Windows. Some
    features, especially in `com.google.common.io`, may not work correctly in
    non-Linux environments. For the Android flavor, our unit tests also run on
    API level 23 (Marshmallow).

[guava-snapshot-api-docs]: https://guava.dev/releases/snapshot-jre/api/docs/
[guava-snapshot-api-diffs]: https://guava.dev/releases/snapshot-jre/api/diffs/

import static org.junit.jupiter.api.Assertions.assertTrue;

import java.util.List;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

/**
 * Unit tests for DirectoryCacheEntry
 */
public class DirectoryCacheEntryTest {

    private DirectoryCacheEntry entry;
    private Smb2LeaseKey leaseKey;
    private String directoryPath = "/test/dir";

    @BeforeEach

import java.util.Iterator;
import java.util.Map.Entry;
import java.util.SortedSet;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * Unit tests for {@code TreeMultimap} with explicit comparators.
 *
 * @author Jared Levy
 */
@GwtCompatible
@NullMarked
public class TreeMultimapExplicitTest extends TestCase {

  /**

import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.List;
import java.util.Map;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit tests of {@link TypeResolver}.
 *
 * @author Ben Yu
 */
@AndroidIncompatible // lots of failures, possibly some related to bad equals() implementations?
@NullUnmarked
public class TypeResolverTest extends TestCase {

### **4.1 Spark Pi**

Test the Spark installation by running the following compute intensive example, which calculates pi by “throwing darts” at a circle. The program generates points in the unit square ((0,0) to (1,1)) and counts how many points fall within the unit circle within the square. The result approximates pi.

Follow these steps to run the Spark Pi example:

- Login as user **‘spark’**.

import com.google.common.collect.Lists;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.NoSuchElementException;
import junit.framework.TestCase;

/**
 * Unit test for IteratorTester.
 *
 * @author Mick Killianey
 */
@GwtCompatible
@SuppressWarnings("serial") // No serialization is used in this test
public class IteratorTesterTest extends TestCase {

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

import jcifs.Configuration;
import jcifs.internal.util.SMBUtil;

/**
 * Unit tests for TransTransactNamedPipe class
 */
@DisplayName("TransTransactNamedPipe Tests")
class TransTransactNamedPipeTest {

    @Mock
    private Configuration mockConfig;

import com.google.common.testing.NullPointerTester;
import com.google.common.testing.SerializableTester;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit test for {@link CaseFormat}.
 *
 * @author Mike Bostock
 */
@GwtCompatible
@NullUnmarked
public class CaseFormatTest extends TestCase {

  public void testIdentity() {