1 files changed, 110 insertions, 0 deletions
diff --git a/testing/web-platform/tests/payment-request/payment-response/helpers.js b/testing/web-platform/tests/payment-request/payment-response/helpers.js
new file mode 100644
index 0000000000..1242ecb743
--- /dev/null
+++ b/testing/web-platform/tests/payment-request/payment-response/helpers.js
@@ -0,0 +1,110 @@
+setup({ explicit_done: true, explicit_timeout: true });
+
+const applePay = Object.freeze({
+  supportedMethods: "https://apple.com/apple-pay",
+  data: {
+    version: 3,
+    merchantIdentifier: "merchant.com.example",
+    countryCode: "US",
+    merchantCapabilities: ["supports3DS"],
+    supportedNetworks: ["visa"],
+  }
+});
+
+const validMethod = Object.freeze({
+  supportedMethods: "basic-card",
+});
+
+const validMethods = Object.freeze([validMethod, applePay]);
+
+const validAmount = Object.freeze({
+  currency: "USD",
+  value: "1.00",
+});
+
+const validTotal = Object.freeze({
+  label: "Valid total",
+  amount: validAmount,
+});
+const validDetails = {
+  total: validTotal,
+};
+
+test(() => {
+  try {
+    new PaymentRequest(validMethods, validDetails);
+  } catch (err) {
+    done();
+    throw err;
+  }
+}, "Can construct a payment request (smoke test).");
+
+/**
+ * Pops up a payment sheet, allowing options to be
+ * passed in if particular values are needed.
+ *
+ * @param PaymentOptions options
+ */
+async function getPaymentResponse(options, id) {
+  const { response } = await getPaymentRequestResponse(options, id);
+  return response;
+}
+
+/**
+ * Creates a payment request and response pair.
+ * It also shows the payment sheet.
+ *
+ * @param {PaymentOptions?} options
+ * @param {String?} id
+ */
+async function getPaymentRequestResponse(options, id) {
+  const methods = [{ supportedMethods: "basic-card" }];
+  const details = {
+    id,
+    total: {
+      label: "Total due",
+      amount: { currency: "USD", value: "1.0" },
+    },
+  };
+  const request = new PaymentRequest(methods, details, options);
+  const response = await request.show();
+  return { request, response };
+}
+
+/**
+ * Runs a manual test for payment
+ *
+ * @param {HTMLButtonElement} button The HTML button.
+ * @param {PaymentOptions?} options.
+ * @param {Object} expected What property values are expected to pass the test.
+ * @param {String?} id And id for the request/response pair.
+ */
+async function runManualTest(button, options, expected = {}, id = undefined) {
+  button.disabled = true;
+  const { request, response } = await getPaymentRequestResponse(options, id);
+  await response.complete();
+  test(() => {
+    assert_idl_attribute(
+      response,
+      "requestId",
+      "Expected requestId to be an IDL attribute."
+    );
+    assert_equals(response.requestId, request.id, `Expected ids to match`);
+    for (const [attribute, value] of Object.entries(expected)) {
+      assert_idl_attribute(
+        response,
+        attribute,
+        `Expected ${attribute} to be an IDL attribute.`
+      );
+      assert_equals(
+        response[attribute],
+        value,
+        `Expected response ${attribute} attribute to be ${value}`
+      );
+    }
+    assert_idl_attribute(response, "details");
+    assert_equals(typeof response.details, "object", "Expected an object");
+    // Testing that this does not throw:
+    response.toJSON();
+  }, button.textContent.trim());
+}