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Test Info: Warnings

<!DOCTYPE html>
<html>
<meta charset=utf-8 />
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src=/resources/testdriver.js></script>
<script src=/resources/testdriver-vendor.js></script>
<script src=resources/event-timing-test-utils.js></script>
<custom-button id='custom_button'></custom-button>
<script>
async_test(function(t) {
assert_implements(window.PerformanceEventTiming, 'Event Timing is not supported.');
let innerButtonClicked = false;
customElements.define('custom-button', class extends HTMLElement {
connectedCallback() {
this.attachShadow({mode: 'open'});
this.shadowRoot.innerHTML = `<button id='inner_button_id'>Click me</button>`;
this.shadowRoot.getElementById('inner_button_id').onclick = () => {
innerButtonClicked = true;
};
}
});
const observer = new PerformanceObserver(t.step_func((entryList) => {
const entries = entryList.getEntriesByName('mousedown');
if (entries.length === 0)
return;
// There must only be one mousedown entry.
assert_equals(entries.length, 1);
verifyClickEvent(entries[0], 'custom_button', true);
assert_true(innerButtonClicked);
t.done()
}));
observer.observe({entryTypes: ['event']});
clickAndBlockMain('custom_button');
}, "Event Timing: target reports the last Event Target, i.e. nothing from shadow DOM.");
</script>
</html>