Fixed #32556 -- Fixed handling empty string as non-boolean attributes value by assertHTMLEqual().

2 files changed, 12 insertions, 2 deletions

diff --git a/docs/releases/4.0.txt b/docs/releases/4.0.txt
index 6f10124c0c..2b82c62d02 100644
--- a/docs/releases/4.0.txt
+++ b/docs/releases/4.0.txt
@@ -362,6 +362,10 @@ Miscellaneous
   ``EmailMessage.attach()`` with an invalid ``content`` or ``mimetype``
   arguments now raise ``ValueError`` instead of ``AssertionError``.
 
+* :meth:`~django.test.SimpleTestCase.assertHTMLEqual` no longer considers a
+  non-boolean attribute without a value equal to an attribute with the same
+  name and value.
+
 .. _deprecated-features-4.0:
 
 Features deprecated in 4.0
diff --git a/docs/topics/testing/tools.txt b/docs/topics/testing/tools.txt
index 70b7f2df5c..02da186aa2 100644
--- a/docs/topics/testing/tools.txt
+++ b/docs/topics/testing/tools.txt
@@ -1596,8 +1596,8 @@ your test suite.
       closed or the HTML document ends.
     * Empty tags are equivalent to their self-closing version.
     * The ordering of attributes of an HTML element is not significant.
-    * Attributes without an argument are equal to attributes that equal in
-      name and value (see the examples).
+    * Boolean attributes (like ``checked``) without an argument are equal to
+      attributes that equal in name and value (see the examples).
     * Text, character references, and entity references that refer to the same
       character are equivalent.
 
@@ -1620,6 +1620,12 @@ your test suite.
 
     Output in case of error can be customized with the ``msg`` argument.
 
+    .. versionchanged:: 4.0
+
+        In older versions, any attribute (not only boolean attributes) without
+        a value was considered equal to an attribute with the same name and
+        value.
+
 .. method:: SimpleTestCase.assertHTMLNotEqual(html1, html2, msg=None)
 
     Asserts that the strings ``html1`` and ``html2`` are *not* equal. The