1 files changed, 16 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-toggle/support/toggle-helpers.js b/testing/web-platform/tests/css/css-toggle/support/toggle-helpers.js
new file mode 100644
index 0000000000..48f0916b4e
--- /dev/null
+++ b/testing/web-platform/tests/css/css-toggle/support/toggle-helpers.js
@@ -0,0 +1,16 @@
+async function wait_for_toggle_creation(element) {
+  // TODO(crbug.com/1250716): The spec is vague about when toggles need to be
+  // created, and whether :toggle() pseudo-classes will update within the same
+  // update.  See https://github.com/tabatkins/css-toggle/issues/27 .  For
+  // now, we call elementFromPoint (which in Chromium flushes to PrePaint
+  // clean), which isn't a long term solution!
+  document.elementFromPoint(10, 10);
+}
+
+async function set_up_single_toggle_in(container, toggle_style) {
+  let div = document.createElement("div");
+  div.style.toggle = toggle_style;
+  container.replaceChildren(div);
+  await wait_for_toggle_creation(div);
+  return div;
+}