001/**
002 * Copyright (c) 2004-2016 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 org.junit.After;
031import org.junit.Before;
032import org.junit.Test;
033
034public class NoProviderAssertionTest {
035
036    StringPrintStream sps = new StringPrintStream(System.err);
037    PrintStream old = System.err;
038    int diff = 1024 + new Random().nextInt(10000);
039
040    @Before
041    public void setUp() throws Exception {
042        System.setErr(sps);
043    }
044
045    @After
046    public void tearDown() throws Exception {
047        System.setErr(old);
048    }
049
050    @Test
051    public void test() throws Exception {
052        Logger logger = LoggerFactory.getLogger(this.getClass());
053        String msg = "hello world " + diff;
054        logger.info(msg);
055        OutputVerifier.noProvider(sps);
056    }
057}