Fixed #27906 -- Fixed test tools counting of HTML matches for subsets of elements.

Previously examples such as '<a/><b/>' would not match in '<a/><b/><c/>'.

1 files changed, 20 insertions, 1 deletions

diff --git a/tests/test_utils/tests.py b/tests/test_utils/tests.py
index 87e2f56979..51e3c0548a 100644
--- a/tests/test_utils/tests.py
+++ b/tests/test_utils/tests.py
@@ -768,11 +768,30 @@ class HTMLEqualTests(SimpleTestCase):
         dom2 = parse_html('<p>foo<p>bar</p></p>')
         self.assertEqual(dom2.count(dom1), 0)
 
-        # html with a root element contains the same html with no root element
+        # HTML with a root element contains the same HTML with no root element.
         dom1 = parse_html('<p>foo</p><p>bar</p>')
         dom2 = parse_html('<div><p>foo</p><p>bar</p></div>')
         self.assertEqual(dom2.count(dom1), 1)
 
+        # Target of search is a sequence of child elements and appears more
+        # than once.
+        dom2 = parse_html('<div><p>foo</p><p>bar</p><p>foo</p><p>bar</p></div>')
+        self.assertEqual(dom2.count(dom1), 2)
+
+        # Searched HTML has additional children.
+        dom1 = parse_html('<a/><b/>')
+        dom2 = parse_html('<a/><b/><c/>')
+        self.assertEqual(dom2.count(dom1), 1)
+
+        # No match found in children.
+        dom1 = parse_html('<b/><a/>')
+        self.assertEqual(dom2.count(dom1), 0)
+
+        # Target of search found among children and grandchildren.
+        dom1 = parse_html('<b/><b/>')
+        dom2 = parse_html('<a><b/><b/></a><b/><b/>')
+        self.assertEqual(dom2.count(dom1), 2)
+
     def test_parsing_errors(self):
         with self.assertRaises(AssertionError):
             self.assertHTMLEqual('<p>', '')