mozilla-central/testing/web-platform/tests/payment-request/payment-response/payerdetailschange-updateWith-immediate-manual.https.html

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<!doctype html>
<meta charset=utf-8>
<title>Dispatching PaymentRequestUpdateEvent for "payerdetailschange"</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src="helpers.js"></script>
<script>
function testImmediateUpdate({ textContent: testName }) {
promise_test(async t => {
const response = await getPaymentResponse({ requestPayerName: true });
const eventPromise = new Promise((resolve, reject) => {
response.addEventListener(
"payerdetailchange",
ev => {
// Forces updateWith() to be run in the next event loop tick so that
// [[waitForUpdate]] is already true when it runs.
t.step_timeout(() => {
try {
ev.updateWith({});
resolve(); // This is bad.
} catch (err) {
reject(err); // this is good.
}
});
},
{ once: true }
);
});
const retryPromise = response.retry({
payer: { name: "Change me!" },
});
await promise_rejects_dom(
t,
"InvalidStateError",
eventPromise,
"The event loop already spun, so [[waitForUpdate]] is now true"
);
await retryPromise;
await response.complete("success");
}, testName.trim());
}
</script>
<h2>Handling PaymentResponse.prototype.onpayerdetailchange events</h2>
<p>
The test brings up the Payment Request UI window.
When shown the payment sheet, use any details and hit pay.
</p>
<p>
When asked to retry the payment:
</p>
<ol>
<li>
<p>
Change payer's name to anything.
</p>
<button onclick="testImmediateUpdate(this);">
updateWith() must be called immediately, otherwise must throw an InvalidStateError.
</button>
</li>
<li>
<button onclick="done();">DONE!</button>
</li>
</ol>
<small>
If you find a buggy test, please <a href="https://github.com/web-platform-tests/wpt/issues">file a bug</a>
</small>