payment-request/PaymentMethodChangeEvent/methodName-attribute.https.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>Test for PaymentMethodChangeEvent.methodName attribute</title>
<link rel="help" href="https://w3c.github.io/browser-payment-api/#dom-paymentmethodchangeevent-src">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
"use strict";
test(() => {
  const event = new PaymentMethodChangeEvent("test", {
    methodName: "wpt-test",
  });
  assert_idl_attribute(event, "methodName");
  const { methodName } = event;
  assert_equals(methodName, "wpt-test");
}, "Must have a methodName IDL attribute, which is initialized with to the methodName dictionary value");

test(() => {
  const event = new PaymentMethodChangeEvent("test");
  assert_equals(event.methodName, "", "methodName attribute must initialize to empty string");

  const event2 = new PaymentMethodChangeEvent("test", { methodDetails: {} });
  assert_equals(event2.methodName, "", "methodName attribute must initialize to empty string");

  const event3 = new PaymentMethodChangeEvent("test", {});
  assert_equals(event3.methodName, "", "methodName attribute must initialize to empty string");
}, "When no dictionary is passed, the methodName member defaults to the empty string");
</script>