TestPrinter.java

/**
 * Copyright (C) 2009 eXo Platform SAS.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.exoplatform.commons.utils;

import java.io.IOException;

import org.exoplatform.component.test.AbstractGateInTest;

/**
 * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
 * @version $Revision$
 */
public class TestPrinter extends AbstractGateInTest {

    private MyPrinter printer;

    @Override
    protected void setUp() throws Exception {
        printer = new MyPrinter();
    }

    @Override
    protected void tearDown() throws Exception {
        printer = null;
    }

    /*
     * public void testPrintNull() { printer.print(null); assertEquals("null", printer.buffer.toString()); }
     *
     * public void testPrint() { printer.print("foo"); assertEquals("foo", printer.buffer.toString()); }
     *
     * public void testPrintlnNull() { printer.println(null); assertEquals("null\n", printer.buffer.toString()); }
     *
     * public void testPrintln() { printer.println("foo"); assertEquals("foo\n", printer.buffer.toString()); }
     *
     * public void testPrintln2() { printer.println(); assertEquals("\n", printer.buffer.toString()); }
     */

    public void testWriteNull() throws IOException {
        try {
            printer.write((String) null);
            fail();
        } catch (Exception ignore) {
            assertEquals("", printer.buffer.toString());
        }
        try {
            printer.write((String) null, 0, 10);
            fail();
        } catch (Exception ignore) {
            assertEquals("", printer.buffer.toString());
        }
        try {
            printer.write((char[]) null, 0, 10);
            fail();
        } catch (Exception ignore) {
            assertEquals("", printer.buffer.toString());
        }
        try {
            printer.write((char[]) null);
            fail();
        } catch (Exception ignore) {
            assertEquals("", printer.buffer.toString());
        }
    }

    private static class MyPrinter extends Printer {

        private StringBuffer buffer = new StringBuffer();

        public void write(char[] cbuf, int off, int len) throws IOException {
            buffer.append(cbuf, off, len);
        }

        public void flush() throws IOException {
        }

        public void close() throws IOException {
        }
    }
}