1 files changed, 31 insertions, 0 deletions
diff --git a/testing/web-platform/tests/event-timing/interactionid-tap.html b/testing/web-platform/tests/event-timing/interactionid-tap.html
new file mode 100644
index 0000000000..6545369088
--- /dev/null
+++ b/testing/web-platform/tests/event-timing/interactionid-tap.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html>
+<meta charset=utf-8 />
+<title>Event Timing: interactionId-tap.</title>
+<button id='testButtonId'>Tap</button>
+<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=resources/event-timing-test-utils.js></script>
+
+<script>
+  let observedEntries = [];
+  const map = new Map();
+  const events = ['pointerdown', 'pointerup'];
+
+  promise_test(async t => {
+    assert_implements(window.PerformanceEventTiming, 'Event Timing is not supported.');
+
+    const callback = (entryList) => { observedEntries = observedEntries.concat(entryList.getEntries().filter(filterAndAddToMap(events, map))); };
+    const readyToResolve = () => { return observedEntries.length >= 2; };
+    const observerPromise = createPerformanceObserverPromise(['event'], callback, readyToResolve);
+
+    await interactAndObserve('tap', document.getElementById('testButtonId'), observerPromise);
+    events.forEach(e => assert_greater_than(map.get(e), 0, 'Should have a non-trivial interactionId for ' + e + ' event'));
+    assert_equals(map.get('pointerdown'), map.get('pointerup'), 'The pointerdown and the pointerup should have the same interactionId');
+  }, "Event Timing: compare event timing interactionId for tap.");
+
+</script>
+</html>