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 junit.framework.TestCase;
031
032public class MissingSingletonMethodAssertionTest 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 MissingSingletonMethodAssertionTest(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        try {
054            Logger logger = LoggerFactory.getLogger(this.getClass());
055            String msg = "hello world " + diff;
056            logger.info(msg);
057            fail("NoSuchMethodError expected");
058        } catch (NoSuchMethodError e) {
059        }
060
061        int lineCount = sps.stringList.size();
062        assertTrue("number of lines should be 3 but was " + lineCount, lineCount == 3);
063
064        // expected output:
065        // SLF4J: slf4j-api 1.6.x (or later) is incompatible with this binding.
066        // SLF4J: Your binding is version 1.4.x or earlier.
067        // SLF4J: Upgrade your binding to version 1.6.x. or 2.0.x
068
069        {
070            String s = (String) sps.stringList.get(0);
071            assertTrue(s.contains("SLF4J: slf4j-api 1.6.x (or later) is incompatible with this binding."));
072        }
073        {
074            String s = (String) sps.stringList.get(1);
075            assertTrue(s.contains("SLF4J: Your binding is version 1.5.5 or earlier."));
076        }
077        {
078            String s = (String) sps.stringList.get(2);
079            assertTrue(s.contains("SLF4J: Upgrade your binding to version 1.6.x."));
080        }
081
082    }
083}