1 files changed, 28 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/bs4/tests/test_builder.py b/.venv/lib/python3.12/site-packages/bs4/tests/test_builder.py
new file mode 100644
index 00000000..87d67587
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/bs4/tests/test_builder.py
@@ -0,0 +1,28 @@
+import pytest
+from unittest.mock import patch
+from bs4.builder import DetectsXMLParsedAsHTML
+
+
+class TestDetectsXMLParsedAsHTML:
+    @pytest.mark.parametrize(
+        "markup,looks_like_xml",
+        [
+            ("No xml declaration", False),
+            ("<html>obviously HTML</html", False),
+            ("<?xml ><html>Actually XHTML</html>", False),
+            ("<?xml>            <    html>Tricky XHTML</html>", False),
+            ("<?xml ><no-html-tag>", True),
+        ],
+    )
+    def test_warn_if_markup_looks_like_xml(self, markup, looks_like_xml):
+        # Test of our ability to guess at whether markup looks XML-ish
+        # _and_ not HTML-ish.
+        with patch("bs4.builder.DetectsXMLParsedAsHTML._warn") as mock:
+            for data in markup, markup.encode("utf8"):
+                result = DetectsXMLParsedAsHTML.warn_if_markup_looks_like_xml(data)
+                assert result == looks_like_xml
+                if looks_like_xml:
+                    assert mock.called
+                else:
+                    assert not mock.called
+                mock.reset_mock()