--- a/core/mdexts/deleted.py	Fri Jun 06 08:18:35 2025 -0500
+++ b/core/mdexts/deleted.py	Sat Jun 07 08:28:27 2025 -0500
@@ -1,6 +1,6 @@
 """
 A python-markdown extension to add support for <del>.
-The Markdown syntax is --this is deleted text--.
+The Markdown syntax is ---this is deleted text---.
 
 """
 import markdown

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/tests/test_markup.py	Sat Jun 07 08:28:27 2025 -0500
@@ -0,0 +1,59 @@
+"""
+Tests for the core markup module.
+
+"""
+import textwrap
+import unittest
+
+from django.test import TestCase
+
+from core.markup import Markdown, markdown, SiteMarkup, site_markup
+
+
+class MarkdownTestCase(unittest.TestCase):
+
+    TEST_TEXT = textwrap.dedent("""\
+        Some text.
+        https://example.com
+        ---deleted text---
+        """)
+
+    EXPECTED = textwrap.dedent(u"""\
+        <p>Some text.<br>
+        <a href="https://example.com">https://example.com</a><br>
+        <del>deleted text</del></p>""")
+
+    def test_markdown_class(self):
+        md = Markdown()
+        output = md.convert(self.TEST_TEXT)
+        self.assertEqual(output, self.EXPECTED)
+
+    def test_markdown_function(self):
+        output = markdown(self.TEST_TEXT)
+        self.assertEqual(output, self.EXPECTED)
+
+
+class SiteMarkdupTestCase(TestCase):
+    fixtures = ['smilies.json']
+
+    TEST_TEXT = textwrap.dedent("""\
+        Some text.
+        https://example.com
+        ---deleted text---
+        :sg101:
+        """)
+
+    EXPECTED = textwrap.dedent(u"""\
+        <p>Some text.<br>
+        <a href="https://example.com">https://example.com</a><br>
+        <del>deleted text</del><br>
+        <img src="/media/smiley/images/icon_sg101.gif" alt="SG101!" title="SG101!"></p>""")
+
+    def test_site_markup_class(self):
+        sm = SiteMarkup()
+        output = sm.convert(self.TEST_TEXT)
+        self.assertEqual(output, self.EXPECTED)
+
+    def test_site_markup_function(self):
+        output = site_markup(self.TEST_TEXT)
+        self.assertEqual(output, self.EXPECTED)