}

    /**
     * Test backward compatibility with standard Base64
     *
     * @throws Exception
     */
    public void testBackwardCompatibility() throws Exception {
        // These test cases ensure that the new java.util.Base64 implementation
        // produces the same output as the old custom implementation

        // Test case 1: Standard padding
        final byte[] data1 = "abc".getBytes();

            assertEquals(defaultValue, mimeMap.getMimeType("notinmap", defaultValue));
        }
    }

    @Nested
    @DisplayName("Edge cases and special scenarios")
    class EdgeCases {

        @Test
        @DisplayName("Should handle multiple extensions for same mime type")
        void testMultipleExtensionsForSameMimeType() throws IOException {

        }

        // Stop all change watchers
        for (String path : directoryCache.keySet()) {
            changeNotifier.stopWatching(path);
        }

        // Clear caches
        directoryCache.clear();
        leaseToPath.clear();
    }

    /**
     * Clean up expired cache entries
     */
    private void cleanupExpiredEntries() {

import org.opensearch.transport.client.Client;

/**
 * Test class for refactoring changes made to Suggester class.
 *
 * Tests cover:
 * - Index alias helper method (getIndicesForAlias)
 * - Edge cases for switchIndex with EXPECTED_INDEX_COUNT
 * - Index lifecycle with refactored methods
 */
public class SuggesterRefactoringTest {
    static OpenSearchRunner runner;
    static Client client;

    @BeforeClass

        try {
            final PacDataInputStream pacStream = new PacDataInputStream(new DataInputStream(new ByteArrayInputStream(data)));

            // Skip firsts
            pacStream.skipBytes(20);

            // Dates
            this.logonTime = pacStream.readFiletime();
            this.logoffTime = pacStream.readFiletime();
            this.kickOffTime = pacStream.readFiletime();
            this.pwdLastChangeTime = pacStream.readFiletime();

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

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

import jcifs.smb.SmbException;

/**
 * Test cases for PathValidator
 */
public class PathValidatorTest {

    private PathValidator validator;
    private PathValidator strictValidator;

    @BeforeEach
    public void setUp() {

    }

    /**
     * Provides arguments for the testGetErrorString parameterized test.
     * Covers all defined error classes and codes, including default cases.
     */
    private static Stream<Arguments> provideErrorClassAndCodeForGetErrorString() {
        return Stream.of(
                // SUCCESS
                Arguments.of(NbtException.SUCCESS, 0, "SUCCESS"),

import org.junit.jupiter.params.provider.ValueSource;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

/**
 * Tests for {@link RequestParam} covering enum mechanics and edge cases.
 */
@ExtendWith(MockitoExtension.class)
public class RequestParamTest {

    // Happy path: values() returns all constants in declaration order
    @Test

/**
 * Tests for SmbRenewableCredentials interface.
 *
 * Since this file is an interface with a single method, we provide small
 * helper implementations to exercise expected interaction patterns and edge cases.
 */
@ExtendWith(MockitoExtension.class)
public class SmbRenewableCredentialsTest {

    // Simple base class to satisfy the extended CredentialsInternal contract

            assertThrows(IOException.class, () -> {
                throw exception;
            });
        }
    }

    @Nested
    @DisplayName("Edge Cases")
    class EdgeCaseTests {

        @Test
        @DisplayName("Should handle very long messages")
        void testVeryLongMessage() {
            StringBuilder longMessage = new StringBuilder();