[TASK] Add Quit message.

piebot/irc.py

@@ -288,3 +288,15 @@ class Topic(Message, metaclass=register_derivative):
         self.source = self.get("nick")
         self.channel = self.get("params")[0]
         self.topic = self.get("trailing")
+
+class Quit(Message, metaclass=register_derivative):
+    def __init__(self, message="QUIT", *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        if "data" not in kwargs:
+            self.update({
+                "command": "QUIT",
+                "trailing": message
+            })
+    def parse(self):
+        self.nick = self.get("nick")
+        self.message = self.get("trailing")

tests/test_message.py

@@ -157,3 +157,16 @@ class Message(unittest.TestCase):
     def test_construct_topic(self):
         msg = irc.Topic(channel="#politics", topic="Yes, we can!")
         self.assertEqual(str(msg), "TOPIC #politics :Yes, we can!")
+
+
+    def test_parse_quit(self):
+        raw = ":worker!~frustrated@company.com QUIT :This is it!"
+        msg = irc.Message.from_string(raw)
+        self.assertIsInstance(msg, irc.Quit, msg="Not a Quit!")
+        self.assertEqual(msg.nick, "worker")
+        self.assertEqual(msg.message, "This is it!")
+
+    def test_construct_quit(self):
+        msg = irc.Quit(message="Good bye!")
+        self.assertEqual(str(msg), "QUIT :Good bye!")
+