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 {

		if ts.IsZero() {
			return // Always okay
		}
		if !fitsInBase256(size, ts.Unix()) {
			whyNoGNU = fmt.Sprintf("GNU cannot encode %s=%v", name, ts)
			format.mustNotBe(FormatGNU)
		}
		isMtime := paxKey == paxMtime
		fitsOctal := fitsInOctal(size, ts.Unix())
		if (isMtime && !fitsOctal) || !isMtime {
			whyNoUSTAR = fmt.Sprintf("USTAR cannot encode %s=%v", name, ts)

### **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’**.

	expiresInt, err := strconv.ParseInt(expires, 10, 64)
	if err != nil {
		return ErrMalformedExpires
	}

	// Check if the presigned URL has expired.
	if expiresInt < UTCNow().Unix() {
		return ErrExpiredPresignRequest
	}

	encodedResource, err = getResource(encodedResource, r.Host, globalDomainNames)
	if err != nil {
		return ErrInvalidRequest
	}

            // Then
            assertEquals(60, bytesRead);
            assertEquals(0, response.getCloseFlags());
            // Zero Windows FileTime converts to negative Unix time
            long expectedTime = -SmbConstants.MILLISECONDS_BETWEEN_1970_AND_1601;
            assertEquals(expectedTime, response.getCreationTime());
            assertEquals(expectedTime, response.getLastAccessTime());

        SMBUtil.writeInt8(1000000, buffer, 20); // Total allocation units
        SMBUtil.writeInt8(500000, buffer, 28); // Available allocation units
        SMBUtil.writeInt4(512, buffer, 36); // Sectors per unit
        SMBUtil.writeInt4(4096, buffer, 40); // Bytes per sector

        int result = response.readBytesWireFormat(buffer, bufferIndex);

        assertNotNull(response.getInfo());

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 {