Add test with rare prefix to ensure that it stays useable.

test/net/java/sip/communicator/impl/protocol/irc/ChatRoomIrcImplTest.java

@@ -25,7 +25,7 @@ public void setUp() throws Exception
         this.stackMock = EasyMock.createMock(IrcStack.class);
         EasyMock.expect(this.providerMock.getIrcStack()).andReturn(stackMock);
         EasyMock.expect(this.stackMock.getChannelTypes()).andReturn(
-            Collections.unmodifiableSet(Sets.newHashSet('#', '$')));
+            Collections.unmodifiableSet(Sets.newHashSet('#', '&')));
     }
 
     //@Test
@@ -425,4 +425,19 @@ public void testSetChatRoomSubjectFailedByOtherRuntimeException()
         {
         }
     }
+
+    /**
+     * Test creating chat room with alternative prefix. Special check to ensure
+     * that we don't forget about less often used prefixes.
+     */
+    // @Test
+    public void testChatRoomWithAlternativePrefix()
+    {
+        EasyMock.replay(this.providerMock, this.stackMock);
+        ChatRoomIrcImpl alternative =
+            new ChatRoomIrcImpl("&MyAlternative-channel-prefix",
+                this.providerMock);
+        Assert.assertEquals("&MyAlternative-channel-prefix",
+            alternative.getIdentifier());
+    }
 }