Implement RFC 2812 handling of "0" argument to JOIN

The students in my software-engineering class are writing IRC clients in
Java, and I'm running ngIRCd as a sandbox for them to play in. We
noticed ngIRCd doesn't obey the "JOIN 0" command specified in RFC 2812:

   JOIN 0             ; Leave all currently joined
                      channels.

http://tools.ietf.org/html/rfc2812#section-3.2.1
I believe the following patch addresses this. Cheers!

[fw@strlen.de: put it into a seperate function]

1 files changed, 31 insertions, 1 deletions

diff --git a/src/testsuite/channel-test.e b/src/testsuite/channel-test.e
index 240abf64..16c67ad4 100644
--- a/src/testsuite/channel-test.e
+++ b/src/testsuite/channel-test.e
@@ -1,4 +1,4 @@
-# $Id: channel-test.e,v 1.3 2003/12/27 13:01:12 alex Exp $
+# $Id: channel-test.e,v 1.4 2008/02/05 13:31:51 fw Exp $
 
 spawn telnet localhost 6789
 expect {
@@ -69,6 +69,36 @@ expect {
 	"@* PART #channel :nick"
 }
 
+send "join #channel\r"
+expect {
+	timeout { exit 1 }
+	"@* JOIN :#channel"
+}
+expect {
+	timeout { exit 1 }
+	"366"
+}
+
+send "join #channel2\r"
+expect {
+	timeout { exit 1 }
+	"@* JOIN :#channel2"
+}
+expect {
+	timeout { exit 1 }
+	"366"
+}
+
+send "join 0\r"
+expect {
+	timeout { exit 1 }
+	"@* PART #channel2 :nick"
+}
+expect {
+	timeout { exit 1 }
+	"@* PART #channel :nick"
+}
+
 send "quit\r"
 expect {
 	timeout { exit 1 }