diff --git a/lms/djangoapps/django_comment_client/helpers.py b/lms/djangoapps/django_comment_client/helpers.py
index 96fd82d37c..0a1e8639ef 100644
--- a/lms/djangoapps/django_comment_client/helpers.py
+++ b/lms/djangoapps/django_comment_client/helpers.py
@@ -12,6 +12,9 @@ import pystache_custom as pystache
 import urllib
 import os
 
+# This method is used to pluralize the words "discussion" and "comment"
+# when referring to how many discussion threads or comments the user
+# has contributed to.
 def pluralize(singular_term, count):
     if int(count) >= 2 or int(count) == 0:
         return singular_term + 's'
diff --git a/lms/djangoapps/django_comment_client/tests/test_helpers.py b/lms/djangoapps/django_comment_client/tests/test_helpers.py
new file mode 100644
index 0000000000..bd67830841
--- /dev/null
+++ b/lms/djangoapps/django_comment_client/tests/test_helpers.py
@@ -0,0 +1,15 @@
+import string
+import random
+import collections
+
+from django.test import TestCase                         
+
+from django_comment_client.helpers import pluralize
+
+class PluralizeTestCase(TestCase):
+
+    def testPluralize(self):
+        self.term = "cat"
+        self.assertEqual(pluralize(self.term, 0), "cats")
+        self.assertEqual(pluralize(self.term, 1), "cat")
+        self.assertEqual(pluralize(self.term, 2), "cats")