public void testIsPresent_yes() {
    assertTrue(Optional.of("training").isPresent());
  }

  public void testGet_absent() {
    Optional<String> optional = Optional.absent();
    assertThrows(IllegalStateException.class, optional::get);
  }

  public void testGet_present() {
    assertEquals("training", Optional.of("training").get());
  }

   *     not support creating temporary directories securely
   * @deprecated For Android users, see the <a
   *     href="https://developer.android.com/training/data-storage" target="_blank">Data and File
   *     Storage overview</a> to select an appropriate temporary directory (perhaps {@code
   *     context.getCacheDir()}), and create your own directory under that. (For example, you might

   *     not support creating temporary directories securely
   * @deprecated For Android users, see the <a
   *     href="https://developer.android.com/training/data-storage" target="_blank">Data and File
   *     Storage overview</a> to select an appropriate temporary directory (perhaps {@code
   *     context.getCacheDir()}), and create your own directory under that. (For example, you might

        testTransformer.setName("  leadingSpaces");
        assertEquals("  leadingSpaces", testTransformer.getName());

        // Trailing whitespace
        testTransformer.setName("trailingSpaces  ");
        assertEquals("trailingSpaces  ", testTransformer.getName());

        // Both leading and trailing
        testTransformer.setName("  bothSpaces  ");
        assertEquals("  bothSpaces  ", testTransformer.getName());

        assertNotNull(r1);
        assertEquals("foo/", r1.getName(), "First child name should match with trailing slash");

        assertTrue(it.hasNext(), "Expected second element available");
        SmbResource r2 = it.next();
        assertNotNull(r2);
        assertEquals("bar/", r2.getName(), "Second child name should match with trailing slash");

        // End of iteration behavior

            }
        });
    }

    /**
     * Marks statistics tracking as complete for the specified crawler object.
     * Decrements the reference count and if it reaches zero, removes the
     * statistics object from cache and outputs the final statistics.
     *
     * @param keyObj the crawler object to complete tracking for
     */
    public void done(final Object keyObj) {

        // Test setting index name with lowercase conversion
        SuggestSettingsBuilder result = builder.setSettingsIndexName("TEST_INDEX");
        assertEquals(builder, result); // Test method chaining
        assertEquals("test_index", builder.settingsIndexName);

        // Test setting index name with mixed case
        builder.setSettingsIndexName("TeSt_InDeX_NaMe");

        assertEquals((byte) 0xFF, buf[1], "AndX command should be 0xFF when no chaining");
        assertEquals((byte) 0x00, buf[2], "Reserved byte must be 0");
        assertEquals((byte) 0xDE, buf[3], "Sentinel low offset when no chaining");
        assertEquals((byte) 0xDE, buf[4], "Sentinel high offset when no chaining");
        assertNull(block.andx, "andx should be cleared when not chaining");
    }

    @Test

            return 0;
        }
    }

    @Test
    @DisplayName("open(): invalid URL path without trailing slash throws SmbException")
    void invalidUrlPathThrows() throws Exception {
        // Override the default setup for this specific test
        URL invalidUrl = new URL("smb://server/share/dir"); // no trailing '/'
        when(locator.getURL()).thenReturn(invalidUrl);

        SmbException ex =

     *  wire format so that we can observe only the bytes written by a method.
     */
    private static byte[] newBuffer(int length) {
        // initialise with distinct pattern to detect unused trailing bytes
        byte[] buf = new byte[length];
        Arrays.fill(buf, (byte) 0xFF);
        return buf;
    }

    @Test
    @DisplayName("constructor initialises command and parameters correctly")