Bug 1528949 [wpt PR 15460] - HTML: window.focus() sans browsing conte…

…xt, a=testonly

Automatic update from web-platform-tests
HTML: window.focus() sans browsing context

For whatwg/html#4377.
--

wpt-commits: 84a44957233c13fb21f5d97b06db1d89076fb144
wpt-pr: 15460

UltraBlame original commit: d3eedffa9545cd523e3632aac00c7336c056cbc6

testing/web-platform/tests/html/browsers/the-window-object/focus.window.js

@@ -0,0 +1,123 @@
+async_test
+(
+t
+=
+>
+{
+const
+input
+=
+document
+.
+body
+.
+appendChild
+(
+document
+.
+createElement
+(
+"
+input
+"
+)
+)
+;
+input
+.
+onfocus
+=
+t
+.
+step_func
+(
+(
+)
+=
+>
+{
+const
+frame
+=
+document
+.
+body
+.
+appendChild
+(
+document
+.
+createElement
+(
+"
+iframe
+"
+)
+)
+frameW
+=
+frame
+.
+contentWindow
+;
+frameW
+.
+onfocus
+=
+t
+.
+unreached_func
+(
+)
+;
+frame
+.
+remove
+(
+)
+;
+frameW
+.
+focus
+(
+)
+;
+t
+.
+step_timeout
+(
+(
+)
+=
+>
+{
+assert_equals
+(
+document
+.
+activeElement
+input
+)
+;
+t
+.
+done
+(
+)
+;
+}
+100
+)
+;
+}
+)
+;
+input
+.
+focus
+(
+)
+;
+}
+)
+;