1 files changed, 44 insertions, 0 deletions
diff --git a/testing/web-platform/tests/payment-handler/app-change-shipping-option.js b/testing/web-platform/tests/payment-handler/app-change-shipping-option.js
new file mode 100644
index 0000000000..ac3307b619
--- /dev/null
+++ b/testing/web-platform/tests/payment-handler/app-change-shipping-option.js
@@ -0,0 +1,44 @@
+self.addEventListener('canmakepayment', (event) => {
+  event.respondWith(true);
+});
+
+async function responder(event) {
+  const methodName = event.methodData[0].supportedMethods;
+  const shippingOption = event.shippingOptions[0].id;
+  const shippingAddress = {
+    addressLine: [
+      '1875 Explorer St #1000',
+    ],
+    city: 'Reston',
+    country: 'US',
+    dependentLocality: '',
+    organization: 'Google',
+    phone: '+15555555555',
+    postalCode: '20190',
+    recipient: 'John Smith',
+    region: 'VA',
+    sortingCode: '',
+  };
+  if (!event.changeShippingOption) {
+    return {
+      methodName,
+      details: {
+        changeShippingOptionReturned:
+          'The changeShippingOption() method is not implemented.',
+      },
+    };
+  }
+  let changeShippingOptionReturned;
+  try {
+    const response = await event.changeShippingOption(shippingOption);
+    changeShippingOptionReturned = response;
+  } catch (err) {
+    changeShippingOptionReturned = err.message;
+  }
+  return {methodName, details: {changeShippingOptionReturned}, shippingAddress,
+      shippingOption};
+}
+
+self.addEventListener('paymentrequest', (event) => {
+  event.respondWith(responder(event));
+});