Update beautifulsoup4-4.10.0

lib/bs4/tests/test_html5lib.py

@@ -182,3 +182,45 @@ class HTML5LibBuilderSmokeTest(SoupTest, HTML5TreeBuilderSmokeTest):
         soup = self.soup(markup, store_line_numbers=False)
         self.assertEqual("sourceline", soup.p.sourceline.name)
         self.assertEqual("sourcepos", soup.p.sourcepos.name)
+
+    def test_special_string_containers(self):
+        # The html5lib tree builder doesn't support this standard feature,
+        # because there's no way of knowing, when a string is created,
+        # where in the tree it will eventually end up.
+        pass
+
+    def test_html5_attributes(self):
+        # The html5lib TreeBuilder can convert any entity named in
+        # the HTML5 spec to a sequence of Unicode characters, and
+        # convert those Unicode characters to a (potentially
+        # different) named entity on the way out.
+        #
+        # This is a copy of the same test from
+        # HTMLParserTreeBuilderSmokeTest.  It's not in the superclass
+        # because the lxml HTML TreeBuilder _doesn't_ work this way.
+        for input_element, output_unicode, output_element in (
+                ("⇄", '\u21c4', b'⇄'),
+                ('⊧', '\u22a7', b'⊧'),
+                ('𝔑', '\U0001d511', b'𝔑'),
+                ('≧̸', '\u2267\u0338', b'≧̸'),
+                ('¬', '\xac', b'¬'),
+                ('⫬', '\u2aec', b'⫬'),
+                ('"', '"', b'"'),
+                ('∴', '\u2234', b'∴'),
+                ('∴', '\u2234', b'∴'),
+                ('∴', '\u2234', b'∴'),
+                ("fj", 'fj', b'fj'),                
+                ("⊔", '\u2294', b'⊔'),
+                ("⊔︀", '\u2294\ufe00', b'⊔︀'),
+                ("'", "'", b"'"),
+                ("|", "|", b"|"),
+        ):
+            markup = '<div>%s</div>' % input_element
+            div = self.soup(markup).div
+            without_element = div.encode()
+            expect = b"<div>%s</div>" % output_unicode.encode("utf8")
+            self.assertEqual(without_element, expect)
+
+            with_element = div.encode(formatter="html")
+            expect = b"<div>%s</div>" % output_element
+            self.assertEqual(with_element, expect)