/*
 * 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.commons.jxpath.ri.axes;

import org.apache.commons.jxpath.AbstractJXPathTest;
import org.apache.commons.jxpath.JXPathContext;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

/**
 * Test for the protection mechanism that stops infinite recursion in descent down a recursive graph.
 */
public class RecursiveAxesTest extends AbstractJXPathTest {

    private RecursiveBean bean;
    private JXPathContext context;

    @Override
    @BeforeEach
    protected void setUp() throws Exception {
        bean = new RecursiveBean("zero");
        final RecursiveBean bean1 = new RecursiveBean("one");
        final RecursiveBean bean2 = new RecursiveBean("two");
        final RecursiveBean bean3 = new RecursiveBean("three");
        bean.setFirst(bean1);
        bean1.setFirst(bean2);
        bean2.setFirst(bean1);
        bean2.setSecond(bean3);
        context = JXPathContext.newContext(null, bean);
    }

    @Test
    public void testInfiniteDescent() {
        // Existing scalar property
        assertXPathPointer(context, "//.[name = 'three']", "/first/first/second");
    }
}
