--- /dev/null
+package org.apache.lucene.facet.enhancements.params;
+
+import java.util.List;
+
+import org.junit.Test;
+
+import org.apache.lucene.util.LuceneTestCase;
+import org.apache.lucene.facet.enhancements.CategoryEnhancement;
+import org.apache.lucene.facet.enhancements.CategoryEnhancementDummy1;
+import org.apache.lucene.facet.enhancements.CategoryEnhancementDummy2;
+import org.apache.lucene.facet.enhancements.params.DefaultEnhancementsIndexingParams;
+import org.apache.lucene.facet.enhancements.params.EnhancementsIndexingParams;
+import org.apache.lucene.facet.index.DummyProperty;
+import org.apache.lucene.facet.index.attributes.CategoryProperty;
+
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * 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.
+ */
+
+public class DefaultEnhancementsIndexingParamsTest extends LuceneTestCase {
+
+ @Test
+ public void testCategoryEnhancements() {
+ EnhancementsIndexingParams params =
+ new DefaultEnhancementsIndexingParams(
+ new CategoryEnhancementDummy1());
+
+ // check retainable properties
+ List<Class<? extends CategoryProperty>> retainableProps = params
+ .getRetainableProperties();
+ assertNull("Unexpected content in retainable list", retainableProps);
+
+ params.addCategoryEnhancements(new CategoryEnhancementDummy2());
+
+ List<CategoryEnhancement> enhancements = params
+ .getCategoryEnhancements();
+
+ assertEquals("Wrong number of enhancements", 2, enhancements.size());
+
+ assertTrue("Wrong first enhancement",
+ enhancements.get(0) instanceof CategoryEnhancementDummy1);
+ assertTrue("Wrong second enhancement",
+ enhancements.get(1) instanceof CategoryEnhancementDummy2);
+
+ // re-check retainable properties
+ retainableProps = params.getRetainableProperties();
+ assertNotNull("Unexpected empty retainable list", retainableProps);
+ assertEquals("Unexpected size of retainable list", 1, retainableProps
+ .size());
+ assertEquals("Wrong property in retainable list", DummyProperty.class,
+ retainableProps.get(0));
+
+ }
+}