test: add test cases for raw-file hg.python.org URL remapping

Author: nagasrisai

apps/downloads/tests/test_models.py

@@ -361,3 +361,29 @@ def test_empty_url_returns_empty(self):
             release_notes_url="",
         )
         self.assertEqual(release.corrected_release_notes_url, "")
+
+    def test_raw_file_hg_url_converted_to_github_raw(self):
+        """A raw-file hg.python.org URL is remapped to raw.githubusercontent.com."""
+        release = Release.objects.create(
+            version=Release.PYTHON2,
+            name="Python 2.7.3",
+            is_published=True,
+            release_notes_url="http://hg.python.org/cpython/raw-file/v2.7.3/Misc/NEWS",
+        )
+        self.assertEqual(
+            release.corrected_release_notes_url,
+            "https://raw.githubusercontent.com/python/cpython/v2.7.3/Misc/NEWS",
+        )
+
+    def test_https_raw_file_hg_url_also_converted(self):
+        """An https raw-file hg.python.org URL is also remapped to raw.githubusercontent.com."""
+        release = Release.objects.create(
+            version=Release.PYTHON2,
+            name="Python 2.6.9",
+            is_published=True,
+            release_notes_url="https://hg.python.org/cpython/raw-file/v2.6.9/Misc/NEWS",
+        )
+        self.assertEqual(
+            release.corrected_release_notes_url,
+            "https://raw.githubusercontent.com/python/cpython/v2.6.9/Misc/NEWS",
+        )