mod: replace legacy joomla links

cadpoint/web/tests.py

@@ -1,3 +1,33 @@
-from django.test import TestCase
+from django.test import SimpleTestCase
+
+from web.legacy_links import build_canonical_url, replace_legacy_links
+
+
+class LegacyLinksTests(SimpleTestCase):
+	def test_build_canonical_url_without_slug(self):
+		self.assertEqual(build_canonical_url(123, ''), '/item/123-')
+
+	def test_replace_legacy_links_rewrites_internal_urls(self):
+		text = (
+			'<a href="/news/1-latest-news/123-old-title.html">link</a>'
+			'<a href="http://www.cadpoint.ru/component/content/article/456-some-article.html">x</a>'
+			'<a href="https://example.com/news/1-latest-news/123-old-title.html">external</a>'
+		)
+		new_text, matches = replace_legacy_links(text, {123: 'new-title', 456: 'article-title'})
+
+		self.assertIn('/item/123-new-title', new_text)
+		self.assertIn('/item/456-article-title', new_text)
+		self.assertIn('https://example.com/news/1-latest-news/123-old-title.html', new_text)
+		self.assertEqual(len(matches), 2)
+
+	def test_replace_legacy_links_does_not_touch_image_urls(self):
+		text = (
+			'<a href="/news/1-latest-news/123-old-title.html">link</a>'
+			'<img src="/images/stories/news/photo123.jpg" alt="photo">'
+		)
+		new_text, matches = replace_legacy_links(text, {123: 'new-title'})
+
+		self.assertIn('/item/123-new-title', new_text)
+		self.assertIn('/images/stories/news/photo123.jpg', new_text)
+		self.assertEqual(len(matches), 1)
 
-# Create your tests here.