    001/**
    002 * Copyright (c) 2004-2011 QOS.ch
    003 * All rights reserved.
    004 *
    005 * Permission is hereby granted, free  of charge, to any person obtaining
    006 * a  copy  of this  software  and  associated  documentation files  (the
    007 * "Software"), to  deal in  the Software without  restriction, including
    008 * without limitation  the rights to  use, copy, modify,  merge, publish,
    009 * distribute,  sublicense, and/or sell  copies of  the Software,  and to
    010 * permit persons to whom the Software  is furnished to do so, subject to
    011 * the following conditions:
    012 *
    013 * The  above  copyright  notice  and  this permission  notice  shall  be
    014 * included in all copies or substantial portions of the Software.
    015 *
    016 * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
    017 * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
    018 * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
    019 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
    020 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
    021 * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
    022 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
    023 *
    024 */
    025package org.slf4j;
    026
    027import java.io.PrintStream;
    028import java.util.Random;
    029
    030import junit.framework.TestCase;
    031
    032public class VersionMismatchAssertionTest extends TestCase {
    033
    034    StringPrintStream sps = new StringPrintStream(System.err);
    035    PrintStream old = System.err;
    036    int diff = 1024 + new Random().nextInt(10000);
    037
    038    public VersionMismatchAssertionTest(String name) {
    039        super(name);
    040    }
    041
    042    protected void setUp() throws Exception {
    043        super.setUp();
    044        System.setErr(sps);
    045    }
    046
    047    protected void tearDown() throws Exception {
    048        super.tearDown();
    049        System.setErr(old);
    050    }
    051
    052    public void test() throws Exception {
    053        Logger logger = LoggerFactory.getLogger(this.getClass());
    054        String msg = "hello world " + diff;
    055        logger.info(msg);
    056
    057        String s0 = (String) sps.stringList.get(0);
    058        assertTrue(s0.matches("SLF4J: The requested version .* by your slf4j binding is not compatible with.*"));
    059
    060        String s1 = (String) sps.stringList.get(1);
    061        assertTrue(s1.contains(LoggerFactory.VERSION_MISMATCH));
    062
    063        String s2 = (String) sps.stringList.get(2);
    064        assertTrue(s2.contains(msg));
    065
    066    }
    067}