--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/tests/test_mdexts.py	Sat Mar 07 14:56:41 2015 -0600
@@ -0,0 +1,27 @@
+"""Testing our custom Markdown extensions."""
+
+import unittest
+
+import markdown
+
+from core.mdexts.ssl_images import SslImagesExtension
+
+
+class SslImagesExtTestCase(unittest.TestCase):
+    """Tests for the SslImagesExtension."""
+
+    def setUp(self):
+        self.md = markdown.Markdown(extensions=[SslImagesExtension()])
+
+    def test_simple(self):
+        self.assertEqual(self.md.convert(''), '')
+        self.assertEqual(self.md.convert('1'), '<p>1</p>')
+
+    def test_no_change(self):
+        self.assertEqual(self.md.convert('![image](https://example.com/1.jpg)'),
+                         u'<p><img alt="image" src="https://example.com/1.jpg" /></p>')
+
+    def test_change(self):
+        text = u'![image](http://example.com/1.jpg)'
+        html = u'<p><a href="http://example.com/1.jpg">Click for image</a></p>'
+        self.assertEqual(self.md.convert(text), html)