throws IOException, XmlPullParserException {
        return buildSettings(userSettingsFile);
    }

    private Settings build(SettingsBuildingRequest request) throws IOException, XmlPullParserException {
        try {
            return settingsBuilder.build(request).getEffectiveSettings();
        } catch (SettingsBuildingException e) {
            throw new IOException(e.getMessage(), e);
        }
    }

        path = pipe.unc;
    }

    @Override
    public void close() throws IOException {
        pipe.close();
    }

    @Override
    public void write(final int b) throws IOException {
        tmp[0] = (byte) b;
        write(tmp, 0, 1);
    }

    @Override
    public void write(final byte[] b) throws IOException {
        write(b, 0, b.length);
    }

    @Override

    ByteSource source = out.asByteSource();

    if (JAVA_IO_TMPDIR.value().equals("/sdcard")) {
      assertThrows(IOException.class, () -> out.write(data));
      return;
    }
    out.write(data);
    assertTrue(Arrays.equals(data, source.read()));

    out.close();
    assertThrows(IOException.class, () -> out.write(42));

    // Verify that write had no effect
    assertTrue(Arrays.equals(data, source.read()));

        int i = 0, n;

        while (i < len) {
            n = in.read(b, off + i, len - i);
            if (n <= 0) {
                break;
            }
            i += n;
        }

        return i;
    }

    static int readPacketType(final InputStream in, final byte[] buffer, final int bufferIndex) throws IOException {

    }

    /**
     * Establish RDMA connection
     *
     * @throws IOException if connection fails
     */
    public abstract void connect() throws IOException;

    /**
     * Send data using RDMA
     *
     * @param data data buffer to send
     * @param region registered memory region for the data
     * @throws IOException if send fails
     */

        assertFalse(tempFile.exists());

        ContentCache cache = new ContentCache(tempFile);

        // Should throw IOException when file doesn't exist
        try {
            cache.close();
            fail("Expected IOException for non-existent file");
        } catch (IOException e) {
            // Expected - file doesn't exist
        }
    }

    @Test
    public void testMemoryCacheWithNullData() {

  }

  @Override
  public OutputStream openStream() throws IOException {
    outputStreamOpened = true;
    bytes.reset(); // truncate
    return new Out();
  }

  private final class Out extends TestOutputStream {

    Out() throws IOException {
      super(bytes, options);
    }

    @Override
    public void close() throws IOException {
      outputStreamClosed = true;
      super.close();
    }
  }

        mockedStaticAuthData.close();
    }

    /**
     * Test constructor with a valid ASN.1 token.
     *
     * @throws IOException if ASN.1 encoding fails.
     * @throws PACDecodingException if PAC decoding fails.
     */
    @Test
    void testConstructor_ValidToken() throws IOException, PACDecodingException {
        // 1. GIVEN
        // Create a mock KerberosAuthData to be returned by the mocked parse method

    @BeforeEach
    void setUp() throws IOException {
        mimeMap = new MimeMap();
    }

    @Nested
    @DisplayName("getMimeType with extension only")
    class GetMimeTypeWithExtension {

        @Test
        @DisplayName("Should return correct mime type for known extensions")
        void testKnownExtensions() throws IOException {
            assertEquals("application/pdf", mimeMap.getMimeType("pdf"));

        private long nextKey = 1;
        private Long peekedKey = null;
        private IOException sendException = null;
        private IOException recvException = null;
        private boolean connectFails = false;
        private boolean disconnectResult = false;

        @Override
        protected long makeKey(Request request) throws IOException {
            return nextKey++;
        }

        @Override