qpid-jms-client/src/test/java/org/apache/qpid/jms/message/JmsTextMessageTest.java

/*
 * 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.qpid.jms.message;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

import java.io.IOException;

import javax.jms.JMSException;
import javax.jms.MessageNotReadableException;
import javax.jms.MessageNotWriteableException;

import org.apache.qpid.jms.message.facade.test.JmsTestMessageFactory;
import org.junit.Test;

/**
 *
 */
public class JmsTextMessageTest {

    private final JmsMessageFactory factory = new JmsTestMessageFactory();

    @Test
    public void testShallowCopy() throws JMSException {
        JmsTextMessage msg = factory.createTextMessage();
        String string = "str";
        msg.setText(string);
        JmsTextMessage copy = msg.copy();
        assertTrue(msg.getText() == copy.getText());
    }

    @Test
    public void testSetText() throws JMSException {
        JmsTextMessage msg = factory.createTextMessage();
        String str = "testText";
        msg.setText(str);
        assertEquals(msg.getText(), str);
    }

    @Test
    public void testClearBody() throws JMSException, IOException {
        JmsTextMessage textMessage = factory.createTextMessage();
        textMessage.setText("string");
        textMessage.clearBody();
        assertFalse(textMessage.isReadOnlyBody());
        assertNull(textMessage.getText());
        try {
            textMessage.setText("String");
            textMessage.getText();
        } catch (MessageNotWriteableException mnwe) {
            fail("should be writeable");
        } catch (MessageNotReadableException mnre) {
            fail("should be readable");
        }
    }

    @Test
    public void testReadOnlyBody() throws JMSException {
        JmsTextMessage textMessage = factory.createTextMessage();
        textMessage.setText("test");
        textMessage.setReadOnlyBody(true);
        try {
            textMessage.getText();
        } catch (MessageNotReadableException e) {
            fail("should be readable");
        }
        try {
            textMessage.setText("test");
            fail("should throw exception");
        } catch (MessageNotWriteableException mnwe) {
        }
    }

    @Test
    public void testWriteOnlyBody() throws JMSException { // should always be readable
        JmsTextMessage textMessage = factory.createTextMessage();
        textMessage.setReadOnlyBody(false);
        try {
            textMessage.setText("test");
            textMessage.getText();
        } catch (MessageNotReadableException e) {
            fail("should be readable");
        }
        textMessage.setReadOnlyBody(true);
        try {
            textMessage.getText();
            textMessage.setText("test");
            fail("should throw exception");
        } catch (MessageNotReadableException e) {
            fail("should be readable");
        } catch (MessageNotWriteableException mnwe) {
        }
    }

    @Test
    public void testToString() throws Exception {
        JmsTextMessage textMessage = factory.createTextMessage();
        textMessage.onDispatch();
        assertTrue(textMessage.toString().startsWith("JmsTextMessage"));
    }

    @Test
    public void testNullText() throws Exception {
        JmsTextMessage nullMessage = factory.createTextMessage();
        nullMessage.setText(null);
        assertNull(nullMessage.getText());
    }
}