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
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21  * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
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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 
IncompatibleMultiBindingAssertionTest(String name)39     public IncompatibleMultiBindingAssertionTest(String name) {
40         super(name);
41     }
42 
setUp()43     protected void setUp() throws Exception {
44         super.setUp();
45         System.setErr(sps);
46     }
47 
tearDown()48     protected void tearDown() throws Exception {
49         super.tearDown();
50         System.setErr(old);
51     }
52 
test()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 
assertMsgContains(List<String> strList, int index, String msg)71     void assertMsgContains(List<String> strList, int index, String msg) {
72         assertTrue(((String) strList.get(index)).contains(msg));
73     }
74 }
75