ExClipboardTest


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16   * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
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19  
20  package org.openide.util.datatransfer;
21  
22  import java.awt.datatransfer.StringSelection  ;
23  import java.awt.datatransfer.Transferable  ;
24  import junit.framework.TestCase;
25  
26  /**
27   *
28   * @author Jaroslav Tulach
29   */
30  public class ExClipboardTest extends TestCase {
31      private ExClipboard clipboard;
32  
33      private ExClipboard.Convertor[] convertors = new ExClipboard.Convertor[0];
34  
35      public ExClipboardTest (String   testName) {
36          super (testName);
37      }
38  
39      protected void setUp () throws Exception   {
40          clipboard = new ExClipboard ("test clipboard") {
41              protected ExClipboard.Convertor[] getConvertors () {
42                  return convertors;
43              }
44          };
45      }
46  
47      public void testAddRemoveClipboardListener () {
48          
49          class L implements ClipboardListener {
50              public int cnt;
51              public ClipboardEvent ev;
52              public void clipboardChanged (ClipboardEvent ev) {
53                  cnt++;
54                  this.ev = ev;
55              }
56          }
57          L listener = new L ();
58          
59          clipboard.addClipboardListener (listener);
60          clipboard.fireClipboardChange ();
61          assertEquals ("One event", 1, listener.cnt);
62          assertNotNull ("An event", listener.ev);
63          assertEquals ("source is right", clipboard, listener.ev.getSource ());
64          
65          clipboard.removeClipboardListener (listener);
66          clipboard.fireClipboardChange ();
67          
68          assertEquals ("no new change", 1, listener.cnt);
69      }
70  
71      public void testConvert () {
72          class WillNotGetNull implements ExClipboard.Convertor {
73              public Transferable   convert (Transferable   t) {
74                  assertNotNull ("Never get null", t);
75                  return null;
76              }
77          }
78          
79          convertors = new ExClipboard.Convertor[] {
80              new WillNotGetNull (),
81              new WillNotGetNull (),
82              new WillNotGetNull (),
83          };
84          
85          Transferable   ret = clipboard.convert (new StringSelection   ("Ahoj"));
86          assertNull ("Correctly returned null", ret);
87          assertNull ("Handle also null parameter", clipboard.convert (null));
88      }
89  
90  }
91
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