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 */
25package org.slf4j;
26
27import java.io.PrintStream;
28import java.util.Random;
29
30import junit.framework.TestCase;
31
32public class MissingSingletonMethodAssertionTest 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 MissingSingletonMethodAssertionTest(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        try {
54            Logger logger = LoggerFactory.getLogger(this.getClass());
55            String msg = "hello world " + diff;
56            logger.info(msg);
57            fail("NoSuchMethodError expected");
58        } catch (NoSuchMethodError e) {
59        }
60
61        int lineCount = sps.stringList.size();
62        assertTrue("number of lines should be 3 but was " + lineCount, lineCount == 3);
63
64        // expected output:
65        // SLF4J: slf4j-api 1.6.x (or later) is incompatible with this binding.
66        // SLF4J: Your binding is version 1.4.x or earlier.
67        // SLF4J: Upgrade your binding to version 1.6.x. or 2.0.x
68
69        {
70            String s = (String) sps.stringList.get(0);
71            assertTrue(s.contains("SLF4J: slf4j-api 1.6.x (or later) is incompatible with this binding."));
72        }
73        {
74            String s = (String) sps.stringList.get(1);
75            assertTrue(s.contains("SLF4J: Your binding is version 1.5.5 or earlier."));
76        }
77        {
78            String s = (String) sps.stringList.get(2);
79            assertTrue(s.contains("SLF4J: Upgrade your binding to version 1.6.x."));
80        }
81
82    }
83}
84