/* * 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. */ package org.apache.lucene.search.grouping; import org.apache.lucene.util.LuceneTestCase; import org.apache.lucene.util.TestUtil; /** * Base class for grouping related tests. */ // TODO (MvG) : The grouping tests contain a lot of code duplication. Try to move the common code to this class.. public abstract class AbstractGroupingTestCase extends LuceneTestCase { protected String generateRandomNonEmptyString() { String randomValue; do { // B/c of DV based impl we can't see the difference between an empty string and a null value. // For that reason we don't generate empty string // groups. randomValue = TestUtil.randomRealisticUnicodeString(random()); //randomValue = _TestUtil.randomSimpleString(random()); } while ("".equals(randomValue)); return randomValue; } }