diff --git a/rplugin/python3/__init__.py b/rplugin/python3/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/rplugin/python3/neotags.py b/rplugin/python3/neotags.py
index b2b7f5e..73b6dcf 100644
--- a/rplugin/python3/neotags.py
+++ b/rplugin/python3/neotags.py
@@ -12,6 +12,7 @@ class NeotagsPlugin(object):
     def __init__(self, nvim):
         self.nvim = nvim
         # Perhaps debugging settings?
+        # Like autotags, configure regex compared to filename to ignore, e.g. fugitive buffers, git commits, etc.
         self.options = {
             'tags_filename': 'tags',
             'ctags_cmd': 'ctags',
diff --git a/rplugin/test/__init__.py b/rplugin/test/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/rplugin/test/test_neotags.py b/rplugin/test/test_neotags.py
new file mode 100644
index 0000000..9c3c78d
--- /dev/null
+++ b/rplugin/test/test_neotags.py
@@ -0,0 +1,61 @@
+import unittest
+from unittest.mock import Mock
+from unittest.mock import MagicMock
+import neovim
+
+from python3.neotags import NeotagsPlugin
+
+
+class TestNeotagsPlugin(unittest.TestCase):
+
+    def setUp(self):
+        self.plugin = NeotagsPlugin(Mock(neovim.api.nvim))
+
+    def test_default_options(self):
+        self.assertEqual('ctags', self.plugin.options['ctags_cmd'])
+        self.assertEqual('tags', self.plugin.options['tags_filename'])
+        self.assertEqual(False, self.plugin.options['logging'])
+
+    def test_default_options(self):
+        self.plugin.nvim.configure_mock(vars={})
+        self.plugin.nvim.vars['neotags_tags_filename'] = 'new_tags'
+        self.plugin.nvim.vars['neotags_ctags_cmd'] = 'new_ctags'
+        self.plugin.nvim.vars['neotags_logging'] = True
+
+        self.plugin.update_settings()
+
+        self.assertEqual('new_tags', self.plugin.options['tags_filename'])
+        self.assertEqual('new_ctags', self.plugin.options['ctags_cmd'])
+        self.assertEqual(True, self.plugin.options['logging'])
+
+    def test_debug_logs_to_nvim_when_logging_is_active(self):
+        self.plugin.options['logging'] = True
+        self.plugin.nvim.out_write = MagicMock()
+
+        self.plugin.debug('some message')
+        self.plugin.nvim.out_write.assert_called_once_with(
+            "neotags > some message\n"
+        )
+
+    def test_debug_does_not_log_to_nvim_when_logging_is_inactive(self):
+        self.plugin.options['logging'] = False
+        self.plugin.nvim.out_write = MagicMock()
+
+        self.plugin.debug('some message')
+        self.plugin.nvim.out_write.assert_not_called()
+
+    def test_error_logs_to_nvim_when_logging_is_active(self):
+        self.plugin.options['logging'] = True
+        self.plugin.nvim.err_write = MagicMock()
+
+        self.plugin.error('some message')
+        self.plugin.nvim.err_write.assert_called_once_with(
+            "neotags > some message\n"
+        )
+
+    def test_error_does_not_log_to_nvim_when_logging_is_inactive(self):
+        self.plugin.options['logging'] = False
+        self.plugin.nvim.err_write = MagicMock()
+
+        self.plugin.error('some message')
+        self.plugin.nvim.err_write.assert_not_called()