diff --git a/testing/web-platform/tests/html/semantics/forms/the-select-element/customizable-select/select-parsing.tentative.html b/testing/web-platform/tests/html/semantics/forms/the-select-element/customizable-select/select-parsing.tentative.html
index 5c40ad8c6a406..79a41c7feb8e5 100644
--- a/testing/web-platform/tests/html/semantics/forms/the-select-element/customizable-select/select-parsing.tentative.html
+++ b/testing/web-platform/tests/html/semantics/forms/the-select-element/customizable-select/select-parsing.tentative.html
@@ -241,6 +241,19 @@
 select
 >
 <
+select
+id
+=
+s7
+>
+<
+input
+>
+<
+/
+select
+>
+<
 div
 id
 =
@@ -771,6 +784,64 @@
 getElementById
 (
 '
+s7
+'
+)
+.
+parentNode
+document
+.
+body
+)
+;
+assert_equals
+(
+document
+.
+getElementById
+(
+'
+s7
+'
+)
+.
+innerHTML
+<
+input
+>
+)
+;
+}
+'
+Input
+tags
+should
+parse
+inside
+select
+instead
+of
+closing
+the
+select
+.
+'
+)
+;
+test
+(
+(
+)
+=
+>
+{
+assert_equals
+(
+document
+.
+getElementById
+(
+'
 afterlast
 '
 )