diff --git a/changes/227.added b/changes/227.added
new file mode 100644
index 00000000..bf3b7412
--- /dev/null
+++ b/changes/227.added
@@ -0,0 +1 @@
+Added some tests for VLAN chatops.
\ No newline at end of file
diff --git a/changes/227.fixed b/changes/227.fixed
new file mode 100644
index 00000000..b446e79b
--- /dev/null
+++ b/changes/227.fixed
@@ -0,0 +1 @@
+Fixed parameters that should be set to None if they have not been defined yet by default.
\ No newline at end of file
diff --git a/nautobot_chatops/tests/workers/test_nautobot.py b/nautobot_chatops/tests/workers/test_nautobot.py
new file mode 100644
index 00000000..a6c7db59
--- /dev/null
+++ b/nautobot_chatops/tests/workers/test_nautobot.py
@@ -0,0 +1,56 @@
+"""Tests for the /nautobot chatops commands."""
+from unittest.mock import MagicMock
+
+from django.test import TestCase
+from nautobot.dcim.models import Site
+from nautobot.ipam.models import VLAN
+from nautobot.extras.models import Status
+from nautobot_chatops.choices import CommandStatusChoices
+
+from nautobot_chatops.dispatchers import Dispatcher
+from nautobot_chatops.workers.nautobot import get_vlans
+
+
+class IpamTestCase(TestCase):
+    """Tests related to IPAM ChatOps commands."""
+
+    def setUp(self):
+        """Per-test-case setup function."""
+        self.active_status = Status.objects.get(name="Active")
+        self.site = Site.objects.create(name="site-1", status=self.active_status)
+        self.vlans, _ = VLAN.objects.get_or_create(vid=1, name="vlan-1", status=self.active_status, site=self.site)
+
+        # Mock the dispatcher
+        self.dispatcher = MagicMock(Dispatcher)
+
+    def test_get_vlans_initial_prompt(self):
+        """Test get VLANs initial command."""
+        self.assertFalse(get_vlans(self.dispatcher))
+        self.dispatcher.send_error.assert_not_called()
+        self.dispatcher.prompt_from_menu.assert_called_with(
+            "nautobot get-vlans",
+            "select a vlan filter",
+            [
+                ("VLAN ID", "id"),
+                ("Group", "group"),
+                ("Name", "name"),
+                ("Role", "role"),
+                ("Site", "site"),
+                ("Status", "status"),
+                ("Tenant", "tenant"),
+                ("All (no filter)", "all"),
+            ],
+        )
+
+    def test_get_vlans_filter_type_sent_filter_name(self):
+        """Test get VLANs with filter type Name selected."""
+        self.assertFalse(get_vlans(self.dispatcher, "name"))
+        self.dispatcher.send_error.assert_not_called()
+        self.dispatcher.prompt_from_menu.assert_called_with(
+            "nautobot get-vlans name", "select a vlan name", [("vlan-1", "vlan-1")], offset=0
+        )
+
+    def test_get_vlans_filter_type_sent_filter_all(self):
+        """Test get VLANs with filter type All selected."""
+        self.assertEqual(get_vlans(self.dispatcher, "all"), CommandStatusChoices.STATUS_SUCCEEDED)
+        self.dispatcher.send_error.assert_not_called()
diff --git a/nautobot_chatops/workers/nautobot.py b/nautobot_chatops/workers/nautobot.py
index 747a3be1..642d457a 100644
--- a/nautobot_chatops/workers/nautobot.py
+++ b/nautobot_chatops/workers/nautobot.py
@@ -160,7 +160,7 @@ def examine_termination_endpoints(circuit):
 
 # pylint: disable=too-many-statements
 @subcommand_of("nautobot")
-def get_vlans(dispatcher, filter_type, filter_value_1):
+def get_vlans(dispatcher, filter_type=None, filter_value_1=None):
     """Return a filtered list of VLANs based on filter type and/or `filter_value_1`."""
     # pylint: disable=no-else-return
     if not filter_type: