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1   /**
2    * Copyright (c) 2004-2011 QOS.ch
3    * All rights reserved.
4    *
5    * Permission is hereby granted, free  of charge, to any person obtaining
6    * a  copy  of this  software  and  associated  documentation files  (the
7    * "Software"), to  deal in  the Software without  restriction, including
8    * without limitation  the rights to  use, copy, modify,  merge, publish,
9    * distribute,  sublicense, and/or sell  copies of  the Software,  and to
10   * permit persons to whom the Software  is furnished to do so, subject to
11   * the following conditions:
12   *
13   * The  above  copyright  notice  and  this permission  notice  shall  be
14   * included in all copies or substantial portions of the Software.
15   *
16   * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
17   * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
18   * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
19   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20   * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21   * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
22   * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23   *
24   */
25  package org.slf4j;
26  
27  import java.io.PrintStream;
28  import java.util.Random;
29  
30  import junit.framework.TestCase;
31  
32  public class VersionMismatchAssertionTest extends TestCase {
33  
34    StringPrintStream sps = new StringPrintStream(System.err);
35    PrintStream old = System.err;
36    int diff = 1024 + new Random().nextInt(10000);
37  
38    public VersionMismatchAssertionTest(String name) {
39      super(name);
40    }
41  
42    protected void setUp() throws Exception {
43      super.setUp();
44      System.setErr(sps);
45    }
46  
47    protected void tearDown() throws Exception {
48      super.tearDown();
49      System.setErr(old);
50    }
51  
52    public void test() throws Exception {
53      Logger logger = LoggerFactory.getLogger(this.getClass());
54      String msg = "hello world " + diff;
55      logger.info(msg);
56      
57      String s0 = (String) sps.stringList.get(0);
58      assertTrue(s0.matches("SLF4J: The requested version .* by your slf4j binding is not compatible with.*"));
59  
60      String s1 = (String) sps.stringList.get(1);
61      assertTrue(s1.contains(LoggerFactory.VERSION_MISMATCH));
62  
63      String s2 = (String) sps.stringList.get(2);
64      assertTrue(s2.contains(msg));
65  
66    }
67  }