}
    }

    // ===================================================================================
    //                                                                      General Helper
    //                                                                      ==============
    protected void assertObjectNotNull(String variableName, Object value) {
        if (variableName == null) {

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.helper;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.UUID;

import org.codelibs.core.collection.LruHashMap;
import org.codelibs.core.lang.StringUtil;

            scriptExecutor.shutdown();
            fail("Expected NullPointerException");
        } catch (NullPointerException e) {
            // Expected when null listener is set
        }
    }

    // Test helper classes
    private static class TestScriptEngine implements ScriptEngine {
        private String lastScript;
        private Map<String, Object> lastParams;
        private final String prefix;

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.helper;

import java.io.File;

import org.codelibs.core.io.FileUtil;
import org.codelibs.core.misc.DynamicProperties;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.unit.UnitFessTestCase;

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.helper;

import java.util.HashMap;
import java.util.Map;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;

        // Should still return empty optional
        assertNotNull(result);
        assertFalse(result.isPresent());
    }

    // Helper method to create mock RequestManager
    private RequestManager createMockRequestManager() {
        return new SimpleRequestManager() {
            // No additional overrides needed for testing
        };
    }

        ComponentUtil.register(new MockPopularWordHelper(), "popularWordHelper");
    }

    @Test
    public void test_init() {
        SuggestHelper helper = new SuggestHelper();
        try {
            helper.init();
            assertNotNull(helper.suggester());
        } catch (Exception e) {
            assertTrue(true);
        }
    }

    @Test
    public void test_suggester() {
        try {

import org.codelibs.fess.Constants;
import org.codelibs.fess.dict.DictionaryException;
import org.codelibs.fess.dict.DictionaryFile.PagingList;
import org.codelibs.fess.dict.DictionaryManager;
import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.optional.OptionalEntity;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.TestInfo;

package org.codelibs.fess.app.web.admin.design;

import java.io.File;
import java.lang.reflect.Method;
import java.nio.file.Files;
import java.nio.file.Path;

import org.codelibs.core.misc.Tuple3;
import org.codelibs.fess.helper.VirtualHostHelper;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.ComponentUtil;
import org.junit.jupiter.api.Test;

import org.codelibs.fess.exception.DataStoreException;
import org.codelibs.fess.helper.CrawlingInfoHelper;
import org.codelibs.fess.helper.IndexingHelper;
import org.codelibs.fess.helper.LabelTypeHelper;
import org.codelibs.fess.helper.LanguageHelper;
import org.codelibs.fess.helper.SearchLogHelper;
import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.ingest.IngestFactory;
import org.codelibs.fess.ingest.Ingester;