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}