/*
 * 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
 *
 *   https://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.
 *
 *   SPDX-License-Identifier: Apache-2.0
 */

package org.apache.jena.util.iterator;

import static junit.framework.TestCase.assertEquals;

import java.util.Iterator;
import java.util.function.Predicate;

import org.junit.jupiter.api.Test;

import org.apache.jena.atlas.iterator.Iter;
import org.apache.jena.test.JenaTestLib;

public class TestFilters {

    protected Predicate<String> containsA = o -> contains(o, 'a');

    @Test
    public void testFilterIterator() {
        Iterator<String> i = JenaTestLib.iteratorOfStrings("there's an a in some animals");
        Iterator<String> it = new FilterIterator<>(containsA, i);
        assertEquals(JenaTestLib.listOfStrings("an a animals"), Iter.toList(it));
    }

    protected boolean contains(Object o, char ch) {
        return o.toString().indexOf(ch) > -1;
    }
}
