* for background.
 */
@RunWith(AndroidJUnit4.class)
public class LetsEncryptTest {
  @Test public void getFailsWithoutAdditionalCert() throws IOException {
    OkHttpClient client = new OkHttpClient();

    boolean androidMorEarlier = Build.VERSION.SDK_INT <= 23;
    try {
      sendRequest(client, "https://valid-isrgrootx1.letsencrypt.org/robots.txt");

        try (FileWriter indexFileWriter = new FileWriter(indexFile)) {
            indexFileWriter.write(generateFile(versions, Files.readString(indexTemplate.toPath())));
        }
    }

    @VisibleForTesting
    static String generateFile(Set<QualifiedVersion> versionsSet, String template) throws IOException {

    @Mock
    private CIFSContext mockContext;

    @Mock
    private Configuration mockConfig;

    private MockWitnessService mockService;

    @BeforeEach
    void setUp() throws Exception {
        mockService = new MockWitnessService();
        mockService.start();

        // Setup mock configuration with lenient stubbing
        lenient().when(mockContext.getConfig()).thenReturn(mockConfig);

     */

    @Override
    public ConflictResolver getConflictResolver(String type) throws ConflictResolverNotFoundException {
        try {
            return (ConflictResolver) container.lookup(ConflictResolver.ROLE, type);
        } catch (ComponentLookupException exception) {
            throw new ConflictResolverNotFoundException("Cannot find conflict resolver of type: " + type);
        }
    }

    private ThumbnailGenerator thumbnailGenerator;
    private File tempOutputFile;
    private Path tempDir;

    @Override
    protected void setUp(TestInfo testInfo) throws Exception {
        super.setUp(testInfo);
        tempDir = Files.createTempDirectory("thumbnail-test");
        tempOutputFile = Files.createTempFile(tempDir, "thumbnail", ".png").toFile();

    }

    /**
     * {@inheritDoc}
     *
     * @throws SMBProtocolDecodingException
     *             if the response data is malformed
     *
     * @see jcifs.internal.smb2.ServerMessageBlock2#readBytesWireFormat(byte[], int)
     */
    @Override
    protected int readBytesWireFormat(final byte[] buffer, final int bufferIndex) throws SMBProtocolDecodingException {

   *
   * <p><b>Java 8+ users:</b> the {@code Stream} equivalent to this method is {@code
   * stream.collect(MoreCollectors.onlyElement())}.
   *
   * @throws NoSuchElementException if the iterable is empty
   * @throws IllegalArgumentException if the iterable contains multiple elements
   */
  @ParametricNullness
  public static <T extends @Nullable Object> T getOnlyElement(Iterable<T> iterable) {

     * @return The toolchains model or <code>null</code> if no toolchain file was configured or the configured file does
     *         not exist.
     * @throws MisconfiguredToolchainException If the toolchain file exists but cannot be parsed.
     */
    PersistedToolchains build(File userToolchainsFile) throws MisconfiguredToolchainException;

                throws SmbException {
            // Not used within these tests
            throw new SmbException("not used in tests");
        }

        @Override
        public Subject getSubject() {
            return null; // not relevant for renew() behavior
        }

        @Override
        public void refresh() throws CIFSException {
            // no-op for tests
        }

        resetLogStreamInstance();
    }

    @AfterEach
    void tearDown() throws Exception {
        // Restore original state
        System.setErr(originalErr);
        LogStream.level = originalLevel;
        // Reset instance using reflection
        resetLogStreamInstance();
    }

    private void resetLogStreamInstance() throws Exception {
        // Use reflection to reset the static instance field to null