PaymentRequest integration test for dynamic shipping

chrome/test/data/android/payments/dynamic_shipping.js

+/*
+ * Copyright 2016 The Chromium Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* global PaymentRequest:false */
+/* global toDictionary:false */
+
+/**
+ * Launches the PaymentRequest UI that offers free shipping in California and
+ * $5.00 shipping in US. Does not allow shipping outside of US.
+ */
+function buy() {  // eslint-disable-line no-unused-vars
+  try {
+    var details = {
+      items: [
+        {
+          id: 'sub',
+          label: 'Subtotal',
+          amount: {currency: 'USD', value: '5.00'}
+        },
+        {
+          id: 'total',
+          label: 'Total',
+          amount: {currency: 'USD', value: '5.00'}
+        }
+      ]
+    };
+
+    var request =
+        new PaymentRequest(['visa'], details, {requestShipping: true});
+
+    request.addEventListener('shippingaddresschange', function(evt) {
+      evt.updateWith(new Promise(function(resolve) {
+        resolve(updateDetails(details, request.shippingAddress));
+      }));
+    });
+
+    request.show()
+        .then(function(resp) {
+          resp.complete(true)
+              .then(function() {
+                print(request.shippingOption + '<br>' +
+                    JSON.stringify(
+                        toDictionary(request.shippingAddress), undefined, 2) +
+                    '<br>' + resp.methodName + '<br>' +
+                    JSON.stringify(resp.details, undefined, 2));
+              })
+              .catch(function(error) {
+                print(error.message);
+              });
+        })
+        .catch(function(error) {
+          print(error.message);
+        });
+  } catch (error) {
+    print(error.message);
+  }
+}
+
+/**
+ * Updates the shopping cart with the appropriate shipping prices according to
+ * the shipping address.
+ * @param {object} details - The shopping cart.
+ * @param {ShippingAddress} addr - The shipping address.
+ * @return {object} The updated shopping cart.
+ */
+function updateDetails(details, addr) {
+  if (addr.regionCode === 'US') {
+    var shippingOption = {
+      id: '',
+      label: '',
+      amount: {currency: 'USD', value: '0.00'}
+    };
+    if (addr.administrativeArea === 'CA') {
+      shippingOption.id = 'ca';
+      shippingOption.label = 'Free shipping in California';
+      details.items[details.items.length - 1].amount.value = '5.00';
+    } else {
+      shippingOption.id = 'us';
+      shippingOption.label = 'Standard shipping in US';
+      shippingOption.amount.value = '5.00';
+      details.items[details.items.length - 1].amount.value = '10.00';
+    }
+    if (details.items.length === 3) {
+      details.items.splice(-1, 0, shippingOption);
+    } else {
+      details.items.splice(-2, 1, shippingOption);
+    }
+    details.shippingOptions = [shippingOption];
+  } else {
+    delete details.shippingOptions;
+  }
+  return details;
+}