Mobile Testing Skill

- Guest can add item to cart from product list
- Cart badge shows item count
- Signed-in user sees saved address at checkout

// src/features/cart/cart.test.ts
import { addToCart } from "./cart-logic";
 
describe("addToCart", () => {
  it("increments quantity for existing sku", () => {
    expect(addToCart({ sku: "A1", qty: 1 }, { sku: "A1", qty: 2 })).toEqual({
      sku: "A1",
      qty: 3,
    });
  });
});

// src/features/cart/CartBadge.test.tsx
import { render, screen } from "@testing-library/react-native";
import { CartBadge } from "./CartBadge";
 
it("shows count when items present", () => {
  render(<CartBadge count={3} />);
  expect(screen.getByLabelText("Cart, 3 items")).toBeTruthy();
});

# .maestro/add-to-cart.yml
appId: com.example.shop
---
- launchApp
- tapOn: "Products"
- tapOn:
    id: "product-tile-A1"
- tapOn: "Add to cart"
- assertVisible:
    id: "cart-badge"
    text: "1"

npm run test:ci
maestro test .maestro/add-to-cart.yml

npx expo install jest-expo jest @types/jest @testing-library/react-native test-renderer --dev

{
  "jest": {
    "preset": "jest-expo",
    "transformIgnorePatterns": [
      "node_modules/(?!((jest-)?react-native|@react-native(-community)?)|expo(nent)?|@expo(nent)?/.*|@expo-google-fonts/.*|react-navigation|@react-navigation/.*|@sentry/react-native|native-base|react-native-svg)"
    ],
    "setupFilesAfterEnv": ["<rootDir>/jest.setup.ts"]
  }
}

// eas.json excerpt
{
  "build": {
    "e2e-test": {
      "withoutCredentials": true,
      "ios": { "simulator": true },
      "android": { "buildType": "apk" }
    }
  }
}

# .eas/workflows/e2e-test-android.yml
name: e2e-test-android
on:
  pull_request:
    branches: ["*"]
jobs:
  build_android_for_e2e:
    type: build
    params:
      platform: android
      profile: e2e-test
  maestro_test:
    needs: [build_android_for_e2e]
    type: maestro
    params:
      build_id: ${{ needs.build_android_for_e2e.outputs.build_id }}
      flow_path: [".maestro/add-to-cart.yml"]

Use Mobile Testing skill. SDK 57.
AC:
1. User can reset password via email link
2. Invalid code shows inline error
Deliver: Jest tests for validation + Maestro happy path only.
appId: com.example.auth. testID prefix: auth-

Use Mobile Testing skill - review mode.
Existing tests attached. AC changed: cart supports quantity edit.
Diff test plan only - which Jest files to update, new Maestro flow or extend?

Use Mobile Testing skill.
Add contract test stub for GET /v1/orders response shape.
Cross-link jest-expo setup. No Detox - Maestro only for E2E.

- [ ] AC → test case traceability table
- [ ] Unit tests for pure logic
- [ ] RNTL component tests for visible behavior
- [ ] ≤ 2 Maestro flows for critical paths
- [ ] jest-expo preset confirmed
- [ ] appId matches app.config bundle ID
- [ ] CI command: npm run test:ci
- [ ] E2E build profile documented
- [ ] Listed AC explicitly NOT covered by E2E (with reason)