org.bremersee.comparator.test.ComparatorItemTests.java Source code

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Here is the source code for org.bremersee.comparator.test.ComparatorItemTests.java

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/*
 * Copyright 2015 the original author or authors.
 *
 * Licensed 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.bremersee.comparator.test;

import java.io.StringReader;
import java.io.StringWriter;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;

import junit.framework.TestCase;

import org.bremersee.comparator.model.ComparatorItem;
import org.bremersee.comparator.model.ObjectFactory;
import org.junit.Before;
import org.junit.Test;

import com.fasterxml.jackson.databind.ObjectMapper;

/**
 * @author Christian Bremer
 */
public class ComparatorItemTests {

    private JAXBContext jaxbContext;

    @Before
    public void createJAXBContext() throws JAXBException {
        this.jaxbContext = JAXBContext.newInstance(ObjectFactory.class.getPackage().getName());
    }

    @Test
    public void testXmlSchema() throws Exception {

        System.out.println("Testing XML schema ...");

        BufferSchemaOutputResolver res = new BufferSchemaOutputResolver();
        jaxbContext.generateSchema(res);
        System.out.print(res);

        System.out.println("OK\n");
    }

    @Test
    public void testXmlComparatorItem() throws Exception {

        System.out.println("Testing XML write-read operations ...");

        ComparatorItem item = new ComparatorItem("i0", true);
        item.next("i1", false).next("i2", true);

        Marshaller marshaller = jaxbContext.createMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

        StringWriter sw = new StringWriter();

        marshaller.marshal(item, sw);

        String xmlStr = sw.toString();

        System.out.println(xmlStr);

        ComparatorItem readItem = (ComparatorItem) jaxbContext.createUnmarshaller()
                .unmarshal(new StringReader(xmlStr));

        System.out.println(item.toList(true));
        System.out.println(readItem.toList(true));

        TestCase.assertEquals(item.toList(true), readItem.toList(true));

        System.out.println("OK\n");
    }

    @Test
    public void testJsonComparatorItem() throws Exception {

        System.out.println("Testing JSON write-read operations ...");

        ComparatorItem item = new ComparatorItem("i0", true);
        item.next("i1", false).next("i2", true);

        ObjectMapper om = new ObjectMapper();

        String jsonStr = om.writerWithDefaultPrettyPrinter().writeValueAsString(item);

        System.out.println(jsonStr);

        ComparatorItem readItem = om.readValue(jsonStr, ComparatorItem.class);

        System.out.println(item.toList(true));
        System.out.println(readItem.toList(true));

        TestCase.assertEquals(item.toList(true), readItem.toList(true));

        System.out.println("OK\n");
    }

    @Test(expected = IllegalArgumentException.class)
    public void testComparatorItemCircle_A0() {

        System.out.println("Testing circle part A0 ...");
        ComparatorItem i0 = new ComparatorItem("i0", true);
        i0.setNextComparatorItem(i0);
        System.out.println("OK\n");
    }

    @Test(expected = IllegalArgumentException.class)
    public void testComparatorItemCircle_A1() {

        System.out.println("Testing circle part A1 ...");
        ComparatorItem i0 = new ComparatorItem("i0", true);
        ComparatorItem i1 = new ComparatorItem("i1", true);
        try {
            i1.setNextComparatorItem(i0);
        } catch (IllegalArgumentException e) {
            throw new RuntimeException("An IllegalArgumentException should not happen here.");
        }
        i0.setNextComparatorItem(i1);
        System.out.println("OK\n");
    }

    @Test(expected = IllegalArgumentException.class)
    public void testComparatorItemCircle_A2() {

        System.out.println("Testing circle part A2 ...");
        ComparatorItem i0 = new ComparatorItem("i0", true);
        ComparatorItem i1 = new ComparatorItem("i1", false);
        ComparatorItem i2 = new ComparatorItem("i2", true);
        try {
            i0.setNextComparatorItem(i1);
            i2.setNextComparatorItem(i0);
        } catch (IllegalArgumentException e) {
            throw new RuntimeException("An IllegalArgumentException should not happen here.");
        }
        i1.setNextComparatorItem(i2);
        System.out.println("OK\n");
    }

}