1 files changed, 63 insertions, 0 deletions
diff --git a/testing/web-platform/tests/dom/events/scrolling/scrollend-event-fired-after-sequence-of-scrolls.tentative.html b/testing/web-platform/tests/dom/events/scrolling/scrollend-event-fired-after-sequence-of-scrolls.tentative.html
new file mode 100644
index 0000000000..77bf029ced
--- /dev/null
+++ b/testing/web-platform/tests/dom/events/scrolling/scrollend-event-fired-after-sequence-of-scrolls.tentative.html
@@ -0,0 +1,63 @@
+<!DOCTYPE HTML>
+<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script src="scroll_support.js"></script>
+<style>
+#targetDiv {
+  width: 200px;
+  height: 200px;
+  overflow: scroll;
+}
+
+#innerDiv {
+  width: 500px;
+  height: 4000px;
+}
+</style>
+
+<body style="margin:0" onload=runTest()>
+<div id="targetDiv">
+  <div id="innerDiv">
+  </div>
+</div>
+</body>
+
+<script>
+const target_div = document.getElementById('targetDiv');
+let scrollend_arrived = false;
+let scrollend_event_count = 0;
+
+function onScrollEnd(event) {
+  assert_false(event.cancelable);
+  assert_false(event.bubbles);
+  scrollend_arrived = true;
+  scrollend_event_count += 1;
+}
+
+function runTest() {
+  promise_test (async (t) => {
+    // Make sure that no scrollend event is sent to document.
+    document.addEventListener("scrollend",
+        t.unreached_func("document got unexpected scrollend event."));
+    await waitForCompositorCommit();
+
+    // Scroll down & up & down on target div and wait for the target_div to get scrollend event.
+    target_div.addEventListener("scrollend", onScrollEnd);
+    const move_path = [
+      { x: 0, y: -300}, // down
+      { x: 0, y: -100}, // up
+      { x: 0, y: -400}, // down
+      { x: 0, y: -200}, // up
+    ];
+    await touchScrollInTargetSequentiallyWithPause(target_div, move_path, 150);
+
+    await waitFor(() => {return scrollend_arrived;},
+        'target_div did not receive scrollend event after sequence of scrolls on target.');
+    assert_equals(scrollend_event_count, 1);
+  }, "Move down, up and down again, receive scrollend event only once");
+}
+</script>