add test to confirm markov irc plugin behavior

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"
+    }
+}
+]