import org.opensearch.transport.client.Client;

/**
 * Utility class for suggest feature.
 */
public final class SuggestUtil {
    private static final int MAX_QUERY_TERM_NUM = 5;
    private static final int MAX_QUERY_TERM_LENGTH = 48;

    private static final Base64.Encoder encoder = Base64.getEncoder();

    private static final int ID_MAX_LENGTH = 445;

    /**
     * Private constructor to prevent instantiation.
     */

        assertEquals(0, keywords.length); // Should return empty array
    }

    @Test
    public void testParseQueryWithLongTerm() {
        // Test query with term longer than MAX_QUERY_TERM_LENGTH (48)
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < 50; i++) {
            sb.append("a");
        }
        String query = sb.toString();
        String field = "content";