Create mocks for the entire Customer Account extension API

Author: kumar303

examples/testing/customer-account-testing-example/.gitignore

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+# Environment Configuration
+.env
+.env.*
+
+# Dependency directory
+node_modules
+
+# Test coverage directory
+coverage
+
+# Ignore Apple macOS Desktop Services Store
+.DS_Store
+
+# Logs
+logs
+*.log
+
+# extensions build output
+extensions/*/build
+extensions/*/dist
+
+# lock files
+
+
+
+
+# Ignore shopify files created during app dev
+.shopify/*
+.shopify.lock

examples/testing/customer-account-testing-example/.graphqlrc.js

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+const fs = require("node:fs");
+
+function getConfig() {
+  const config = {
+    projects: {},
+  };
+
+  let extensions = [];
+  try {
+    extensions = fs.readdirSync("./extensions");
+  } catch {
+    // ignore if no extensions
+  }
+
+  for (const entry of extensions) {
+    const extensionPath = `./extensions/${entry}`;
+    const schema = `${extensionPath}/schema.graphql`;
+    if (!fs.existsSync(schema)) {
+      continue;
+    }
+    config.projects[entry] = {
+      schema,
+      documents: [`${extensionPath}/**/*.graphql`],
+    };
+  }
+
+  return config;
+}
+
+module.exports = getConfig();

examples/testing/customer-account-testing-example/README.md

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+This extension was created with:
+
+```
+shopify app init --name customer-account-testing-example
+cd customer-account-testing-example
+shopify app generate extension
+# I chose 'Customer account UI'
+```
+
+See it in action:
+
+```
+npm install
+npm run typecheck
+npm test
+```

examples/testing/customer-account-testing-example/extensions/.gitkeep

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+{
+  "name": "customer-account-testing-example-ext",
+  "private": true,
+  "version": "1.0.0",
+  "license": "UNLICENSED",
+  "dependencies": {
+    "preact": "^10.10.x",
+    "@preact/signals": "^2.3.x",
+    "@shopify/ui-extensions": "file:../../../../packages/ui-extensions"
+  }
+}

examples/testing/customer-account-testing-example/extensions/customer-account-testing-example/package-lock.json

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+import '@shopify/ui-extensions';
+
+//@ts-ignore
+declare module './src/OrderStatusBlock.jsx' {
+  const shopify: import('@shopify/ui-extensions/customer-account.order-status.block.render').Api;
+  const globalThis: { shopify: typeof shopify };
+}

examples/testing/customer-account-testing-example/extensions/customer-account-testing-example/package.json

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+# Learn more about configuring your Customer account UI extension:
+# https://shopify.dev/api/customer-account-ui-extensions/unstable/configuration
+
+# The version of APIs your extension will receive. Learn more:
+# https://shopify.dev/docs/api/usage/versioning
+api_version = "2026-01"
+
+[[extensions]]
+name = "customer-account-testing-example"
+handle = "customer-account-testing-example"
+type = "ui_extension"
+uid = "9ebaa5f0-a0d8-25bf-6290-c55f579e4dfac7c7fcd2"
+
+[[extensions.targeting]]
+module = "./src/OrderStatusBlock.jsx"
+target = "customer-account.order-status.block.render"
+
+[extensions.capabilities]
+api_access = true

examples/testing/customer-account-testing-example/extensions/customer-account-testing-example/shopify.d.ts

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+import '@shopify/ui-extensions/preact';
+import {render} from 'preact';
+
+export default async () => {
+  render(<Extension />, document.body);
+};
+
+function Extension() {
+  const order = shopify.order.value;
+  const totalAmount = shopify.cost.totalAmount.value;
+
+  return (
+    <s-banner>
+      <s-heading>{order ? `Order ${order.name}` : 'Order Summary'}</s-heading>
+      <s-text>
+        Total: {totalAmount.amount} {totalAmount.currencyCode}
+      </s-text>
+    </s-banner>
+  );
+}

examples/testing/customer-account-testing-example/extensions/customer-account-testing-example/shopify.extension.toml

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+/// <reference types="@shopify/ui-extensions/customer-account.order-status.block.render" />
+// ^ This defines types for custom Shopify elements supported by the target.
+
+import {expect, test, beforeEach, afterEach} from 'vitest';
+import {getExtension} from '@shopify/ui-extensions-tester';
+
+const extension = getExtension(
+  'customer-account.order-status.block.render',
+);
+
+beforeEach(() => {
+  extension.setUp();
+});
+
+afterEach(() => {
+  extension.tearDown();
+});
+
+test('shows a generic heading when there is no order', async () => {
+  extension.shopify.order.value = undefined;
+
+  await extension.render();
+  const heading = extension.querySelector('s-heading')!;
+  expect(heading.textContent).toEqual('Order Summary');
+});
+
+test('shows the order name in the heading', async () => {
+  extension.shopify.order.value.name = '#1042';
+
+  await extension.render();
+  const heading = extension.querySelector('s-heading')!;
+  expect(heading.textContent).toEqual('Order #1042');
+});
+
+test('shows the total amount with currency', async () => {
+  await extension.render();
+  const texts = extension.querySelectorAll('s-text');
+  const content = texts.map((el) => el.textContent).join('');
+  expect(content).toContain('0');
+  expect(content).toContain('USD');
+});