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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.apache.log4j;
26  
27  import static org.junit.Assert.assertEquals;
28  
29  import org.junit.After;
30  import org.junit.Before;
31  import org.junit.Test;
32  
33  /**
34   * @author Ceki Gücü
35   */
36  public class NDCTest {
37  
38      @Before
39      public void setUp() {
40          assertEquals(0, NDC.getDepth());
41      }
42  
43      @After
44      public void tearDown() {
45          NDC.clear();
46      }
47  
48      @Test
49      public void testSmoke() {
50          NDC.push("a");
51          String back = NDC.pop();
52          assertEquals("a", back);
53      }
54  
55      @Test
56      public void testPop() {
57          NDC.push("peek");
58          String back = NDC.peek();
59          assertEquals("peek", back);
60      }
61  
62      @Test
63      public void testClear() {
64          NDC.push("clear");
65          NDC.clear();
66          assertEquals(0, NDC.getDepth());
67      }
68  
69  }