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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.List;
29  import java.util.Random;
30  
31  import junit.framework.TestCase;
32  
33  public class IncompatibleMultiBindingAssertionTest extends TestCase {
34  
35      StringPrintStream sps = new StringPrintStream(System.err);
36      PrintStream old = System.err;
37      int diff = 1024 + new Random().nextInt(10000);
38  
39      public IncompatibleMultiBindingAssertionTest(String name) {
40          super(name);
41      }
42  
43      protected void setUp() throws Exception {
44          super.setUp();
45          System.setErr(sps);
46      }
47  
48      protected void tearDown() throws Exception {
49          super.tearDown();
50          System.setErr(old);
51      }
52  
53      public void test() throws Exception {
54          try {
55              Logger logger = LoggerFactory.getLogger(this.getClass());
56              String msg = "hello world " + diff;
57              logger.info(msg);
58              fail("was expecting NoSuchMethodError");
59          } catch (NoSuchMethodError e) {
60          }
61          List<String> list = sps.stringList;
62          assertMsgContains(list, 0, "Class path contains multiple SLF4J bindings.");
63          assertMsgContains(list, 1, "Found binding in");
64          assertMsgContains(list, 2, "Found binding in");
65          assertMsgContains(list, 3, "See http://www.slf4j.org/codes.html");
66          assertMsgContains(list, 4, "slf4j-api 1.6.x (or later) is incompatible with this binding");
67          assertMsgContains(list, 5, "Your binding is version 1.5.5 or earlier.");
68  
69      }
70  
71      void assertMsgContains(List<String> strList, int index, String msg) {
72          assertTrue(((String) strList.get(index)).contains(msg));
73      }
74  }