add test to confirm markov irc plugin behavior

.gitignore

@@ -15,7 +15,6 @@ megahal.*
 dr.botzo.log
 dr.botzo.markov
 *.facts
-*.json
 *.log
 *.pyc
 *.sqlite3

tests/fixtures/irc_server_fixture.json

@@ -0,0 +1,36 @@
+[
+{
+    "model": "ircbot.ircserver",
+    "pk": 1,
+    "fields": {
+        "name": "Localhost",
+        "hostname": "localhost",
+        "port": 6697,
+        "password": null,
+        "nickname": "test_bot",
+        "realname": "test_bot",
+        "additional_addressed_nicks": "",
+        "use_ssl": true,
+        "use_ipv6": true,
+        "post_connect": "",
+        "delay_before_joins": 5,
+        "xmlrpc_host": "localhost",
+        "xmlrpc_port": 13132,
+        "replace_irc_control_with_markdown": false
+    }
+},
+{
+    "model": "ircbot.ircchannel",
+    "pk": 1,
+    "fields": {
+        "name": "#test",
+        "server": 1,
+        "autojoin": true,
+        "topic_msg": "",
+        "topic_time": "2022-09-09T18:28:29Z",
+        "topic_by": "",
+        "markov_learn_from_channel": true,
+        "discord_bridge": "bridge"
+    }
+}
+]

tests/test_markov_ircplugin.py

@@ -0,0 +1,35 @@
+"""Test IRC behavior of the markov plugin."""
+from unittest import mock
+
+from django.test import TestCase
+
+from ircbot.models import IrcServer
+from markov.ircplugin import Markov
+
+
+class MarkovTestCase(TestCase):
+    """Test the markov plugin."""
+
+    fixtures = ['tests/fixtures/irc_server_fixture.json']
+
+    def setUp(self):
+        """Create common objects."""
+        self.mock_bot = mock.MagicMock()
+        self.mock_connection = mock.MagicMock()
+
+        self.mock_connection.get_nickname.return_value = 'test_bot'
+        self.mock_connection.server_config = IrcServer.objects.get(pk=1)
+
+        self.plugin = Markov(self.mock_bot, self.mock_connection, mock.MagicMock())
+
+    def test_learn(self):
+        """Test that an IRC event triggers learning as expected."""
+        mock_event = mock.MagicMock()
+        mock_event.arguments = ['hello this is a test message']
+        mock_event.target = '#test'
+        mock_event.recursing = False
+
+        with mock.patch('markov.lib.learn_line') as mock_learn_line:
+            self.plugin.handle_chatter(self.mock_connection, mock_event)
+
+        self.assertEqual(mock_learn_line.call_args.args[0], 'hello this is a test message')