Fixed some (outdated) unit tests for IRC command implementations.

I forgot to update the unit tests during the last changes to IRC command
implementations.

test/net/java/sip/communicator/plugin/irccommands/command/JoinTest.java

@@ -46,7 +46,14 @@ public void testEmptyJoin()
         EasyMock.replay(connection);
 
         Join join = new Join(null, connection);
-        join.execute("#test", "/join");
+        try
+        {
+            join.execute("#test", "/join");
+            Assert.fail();
+        }
+        catch (IllegalArgumentException e)
+        {
+        }
     }
 
     public void testJoinEmptyChannelNoPassword()

test/net/java/sip/communicator/plugin/irccommands/command/MeTest.java

@@ -46,7 +46,14 @@ public void testNoMessage()
         EasyMock.replay(provider, connection);
 
         Me me = new Me(provider, connection);
-        me.execute("#test", "/me");
+        try
+        {
+            me.execute("#test", "/me");
+            Assert.fail();
+        }
+        catch (IllegalArgumentException e)
+        {
+        }
     }
 
     public void testZeroLengthMessage()

test/net/java/sip/communicator/plugin/irccommands/command/ModeTest.java

@@ -47,7 +47,14 @@ public void testEmptyCommand()
         EasyMock.replay(connection);
 
         Mode mode = new Mode(null, connection);
-        mode.execute("#test", "/mode");
+        try
+        {
+            mode.execute("#test", "/mode");
+            Assert.fail();
+        }
+        catch (IllegalArgumentException e)
+        {
+        }
     }
 
     public void testEmptyModeLine()
@@ -56,7 +63,13 @@ public void testEmptyModeLine()
         EasyMock.replay(connection);
 
         Mode mode = new Mode(null, connection);
-        mode.execute("#test", "/mode ");
+        try
+        {
+            mode.execute("#test", "/mode ");
+        }
+        catch (IllegalArgumentException e)
+        {
+        }
     }
 
     public void testSpacesModeLine()

test/net/java/sip/communicator/plugin/irccommands/command/MsgTest.java

@@ -49,7 +49,15 @@ public void testMessageNoNickNoMsg()
         EasyMock.replay(provider, connection);
 
         Msg msg = new Msg(provider, connection);
-        msg.execute("#test", "/msg");
+        try
+        {
+            msg.execute("#test", "/msg");
+            Assert
+                .fail("Should have thrown IAE for missing target and message.");
+        }
+        catch (IllegalArgumentException e)
+        {
+        }
     }
 
     public void testMessageZeroLengthMsg()

test/net/java/sip/communicator/plugin/irccommands/command/NickTest.java

@@ -57,7 +57,14 @@ public void testEmptyNickCommand()
         EasyMock.replay(provider, connection);
 
         Nick nick = new Nick(provider, connection);
-        nick.execute("#test", "/nick");
+        try
+        {
+            nick.execute("#test", "/nick");
+            Assert.fail();
+        }
+        catch (IllegalArgumentException e)
+        {
+        }
     }
 
     public void testEmptyNickCommandWithSpace()
@@ -68,7 +75,14 @@ public void testEmptyNickCommandWithSpace()
         EasyMock.replay(provider, connection);
 
         Nick nick = new Nick(provider, connection);
-        nick.execute("#test", "/nick ");
+        try
+        {
+            nick.execute("#test", "/nick ");
+            Assert.fail();
+        }
+        catch (IllegalArgumentException e)
+        {
+        }
     }
 
     public void testEmptyNickCommandWithDoubleSpace()