diff --git a/tests/unit/test_tag_luckyorange.py b/tests/unit/test_tag_luckyorange.py
new file mode 100644
index 0000000..a4e082b
--- /dev/null
+++ b/tests/unit/test_tag_luckyorange.py
@@ -0,0 +1,82 @@
+"""
+Tests for the Lucky Orange template tags.
+"""
+from django.http import HttpRequest
+from django.template import Context, Template, TemplateSyntaxError
+from django.test import override_settings
+
+from analytical.templatetags.analytical import _load_template_nodes
+from analytical.templatetags.luckyorange import LuckyOrangeNode
+from utils import TagTestCase
+from analytical.utils import AnalyticalException
+
+
+expected_html = """\
+<script type='text/javascript'>
+window.__lo_site_id = 123456;
+(function() {
+    var wa = document.createElement('script'); wa.type = 'text/javascript'; wa.async = true;
+    wa.src = 'https://d10lpsik1i8c69.cloudfront.net/w.js';
+    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(wa, s);
+})();
+</script>
+"""
+
+
+@override_settings(LUCKYORANGE_SITE_ID='123456')
+class LuckyOrangeTagTestCase(TagTestCase):
+
+    maxDiff = None
+
+    def test_tag(self):
+        html = self.render_tag('luckyorange', 'luckyorange')
+        self.assertEqual(expected_html, html)
+
+    def test_node(self):
+        html = LuckyOrangeNode().render(Context({}))
+        self.assertEqual(expected_html, html)
+
+    def test_tags_take_no_args(self):
+        self.assertRaisesRegex(
+            TemplateSyntaxError,
+            r"^'luckyorange' takes no arguments$",
+            lambda: (Template('{% load luckyorange %}{% luckyorange "arg" %}')
+                     .render(Context({}))),
+        )
+
+    @override_settings(LUCKYORANGE_SITE_ID=None)
+    def test_no_id(self):
+        expected_pattern = r'^LUCKYORANGE_SITE_ID setting is not set$'
+        self.assertRaisesRegex(AnalyticalException, expected_pattern, LuckyOrangeNode)
+
+    @override_settings(LUCKYORANGE_SITE_ID='invalid')
+    def test_invalid_id(self):
+        expected_pattern = (
+            r"^LUCKYORANGE_SITE_ID setting: must be \(a string containing\) a number: 'invalid'$")
+        self.assertRaisesRegex(AnalyticalException, expected_pattern, LuckyOrangeNode)
+
+    @override_settings(ANALYTICAL_INTERNAL_IPS=['1.1.1.1'])
+    def test_render_internal_ip(self):
+        request = HttpRequest()
+        request.META['REMOTE_ADDR'] = '1.1.1.1'
+        context = Context({'request': request})
+
+        actual_html = LuckyOrangeNode().render(context)
+        disabled_html = '\n'.join([
+                '<!-- Lucky Orange disabled on internal IP address',
+                expected_html,
+                '-->',
+            ])
+        self.assertEqual(disabled_html, actual_html)
+
+    def test_contribute_to_analytical(self):
+        """
+        `luckyorange.contribute_to_analytical` registers the head and body nodes.
+        """
+        template_nodes = _load_template_nodes()
+        self.assertEqual({
+            'head_top': [],
+            'head_bottom': [LuckyOrangeNode],
+            'body_top': [],
+            'body_bottom': [],
+        }, template_nodes)