--- title: "Testing" description: "Improving quality and reliability in AI-assisted delivery" url: https://www.callstack.com/insights/testing-strategies updated: 2026-10-22T13:55:51.781Z --- # Testing Improving quality and reliability in AI-assisted delivery As teams adopt AI-assisted development, traditional testing struggles to keep pace with generated code and faster delivery workflows. Learn how autonomous AI agents and advanced automation can validate changes, catch regressions, and help teams ship faster without sacrificing reliability. ## Articles, podcasts, events and case studies - [How AI Agents Can Cut Manual QA by 30%](https://www.callstack.com/blog/how-ai-agents-can-cut-manual-qa-by-30) (Article, 10/30/2026): Explore an agentic QA workflow targeting 30% less manual effort across mobile, web, and TV, with test selection, failure triage, and validation. - [Give QA Agents the Controls They Need With Appduct](https://www.callstack.com/blog/give-qa-agents-the-controls-they-need-with-appduct) (Article, 10/20/2026): Use Appduct to give AI QA agents access to app functions for setting test conditions, triggering events, and checking results with UI automation. - [Agentic Mobile Testing With e2e and agent-device](https://www.callstack.com/blog/agentic-mobile-testing-with-e2e-and-agent-device) (Article, 10/13/2026): See how e2e uses agent-device for AI-driven iOS and Android tests, combines exact assertions with agent actions, and replays cached steps without model calls. - [Who Tests AI-Written Code? Inside TesterArmy With Szymon Rybczak](https://www.callstack.com/podcasts/who-tests-ai-written-code-inside-testerarmy-with-szymon-rybczak) (podcast, 10/12/2026): Szymon Rybczak explains how TesterArmy tests web and mobile apps with AI agents, creates test plans for pull requests, and fits into QA workflows. - [Building an Agentic SDLC for a Web Launch in Under One Month](https://www.callstack.com/case-studies/building-an-agentic-sdlc-for-a-web-launch-in-under-one-month) (Case Study, 9/4/2026): 3x estimated delivery acceleration - [Automating Mobile QA With Cloud Agents](https://www.callstack.com/blog/automating-mobile-qa-with-cloud-agents) (Article, 8/4/2026): Code review and green CI checks do not prove a mobile app still works. Learn how cloud agents, agent-device, and runtime evidence can verify app behavior before merge. - [Behavior Review for AI-Native Delivery](https://www.callstack.com/events/behavior-review-for-ai-native-delivery) (Webinar, 7/21/2026): AI can increase code output faster than teams can verify the real app. See why behavior review matters before merge. - [AI-Assisted Design-to-Code Delivery Across Web and Mobile](https://www.callstack.com/case-studies/engineering-ai-loops-for-a-cross-platform-design-system) (Case Study, 7/8/2026): 60+ components mapped with full Code Connect coverage - [Introducing Sniffler: Run only the E2E tests your changes can affect](https://www.callstack.com/blog/introducing-sniffler-run-only-the-e2e-tests-your-changes-can-affect) (Article, 7/6/2026): Sniffler maps changed files to affected E2E tests, so teams can avoid running the full suite on every pull request. - [Mobile QA with Cloud Agents at AI Coding Summit London](https://www.callstack.com/events/mobile-qa-with-cloud-agents-at-ai-coding-summit-london) (Event, 7/6/2026): Michał Pierzchała will speak at AI Coding Summit London 2026 about mobile QA agents for iOS and Android pull request workflows. - [Automating Mobile QA with Cloud Agents](https://www.callstack.com/events/automating-mobile-qa-with-cloud-agents) (Event, 6/17/2026): Michał Pierzchała will present Automating Mobile QA with Cloud Agents at Ship London on 17 June 2026. - [How AI Is Changing React Native Development and Testing](https://www.callstack.com/podcasts/how-ai-is-changing-react-native-development-and-testing) (podcast, 5/13/2026): Zack Ebenfeld joins React Universe On Air to talk about how AI is changing React Native workflows, testing, QA, and day-to-day engineering work. - [Agent React DevTools: Give AI Agents Access to React Internals](https://www.callstack.com/blog/agent-react-devtools-give-ai-agents-access-to-react-internals) (Article, 4/14/2026): Agent React DevTools gives AI agents access to the React component tree, state, and performance data, enabling deeper debugging and more reliable QA for React and React Native apps. - [How We Optimized Agent Device for Mobile App Automation](https://www.callstack.com/blog/how-we-optimized-agent-device-for-mobile-app-automation) (Article, 4/3/2026): Discover how we optimized Agent Device to reduce LLM token consumption by over 50% and speed up AI-driven mobile app automation. - [Agent Device, AI workflows, and mobile testing in practice](https://www.callstack.com/events/agent-device-ai-agents-meet-mobile-automation) (Event, 3/19/2026): A discussion on Agent Device, AI-driven workflows, and testing mobile apps using simulators and accessibility data. - [Agent Device: iOS & Android Automation for AI Agents](https://www.callstack.com/blog/agent-device-ai-native-mobile-automation-for-ios-android) (Article, 2/17/2026): Agent Device is a lightweight CLI for AI-driven mobile automation on iOS and Android, with structured snapshots and deterministic replay. - [Write Once, Test Everywhere: Cross-Platform Testing for React Native](https://www.callstack.com/events/write-once-test-everywhere-cross-platform-testing-for-react-native-2) (Event, 12/9/2025): Join Szymon Chmal at WarsawJS #133 to explore cross-platform testing in React Native with a new approach powered by React Native Harness. - [Testing Native Modules Reliably With JavaScript](https://www.callstack.com/events/testing-native-modules-reliably-with-javascript) (Event, 11/14/2025): Learn how React Native Harness bridges the gap between mocking and E2E testing: real device tests, full native access, Jest-style simplicity. - [React Native Harness, Next.js 16 Beta & Remix v3](https://www.callstack.com/events/react-native-harness-deep-dive) (Event, 10/16/2025): This week’s Live Dev Session dives into React Native Harness with Szymon Chmal, explores the Next.js 16 Beta and Remix v3 “pre-drop,” and breaks down the biggest React and React Native updates from the community and React Alicante 2025. - [Introducing React Native Harness: Fast, Real-Device Testing for Native Modules](https://www.callstack.com/blog/introducing-react-native-harness-fast-real-device-testing-for-native-modules) (Article, 10/15/2025): React Native Harness lets you run Jest-style tests directly on devices and emulators. Fast, reliable, and CI-ready. It’s the easiest way to validate native behavior in React Native. - [Write Once, Test Everywhere: Cross-Platform Testing for React Native](https://www.callstack.com/events/write-once-test-everywhere-cross-platform-testing-for-react-native) (Event, 10/4/2025): Cross-platform testing in React Native made simple: a lightweight architecture to run and extend tests on any JavaScript-powered platform. - [From Unit to E2E: A Guide to Testing React Native TV in 2026](https://www.callstack.com/blog/testing-react-native-tv-apps) (Article, 10/3/2025): Standard mobile testing tools fail for React Native TV apps due to D-pad navigation. This guide shows how to build custom helpers for React Native Testing Library that emit hardware key events and how to configure Appium for end-to-end testing on tvOS and Android TV. - [How to Run E2E Tests on Every PR and Don’t Burn All Your CI Credits](https://www.callstack.com/events/how-to-run-e2e-tests-on-every-pr-and-dont-burn-all-your-ci-credits) (Event, 4/1/2025): End-to-end tests are notoriously slow and costly, especially in mobile development. This talk introduces new tools and techniques to make E2E testing fast and efficient, so you can run tests on every pull request without draining CI resources. - [Testing Expo Web3 Apps With Wagmi and Anvil](https://www.callstack.com/blog/testing-expo-web3-apps-with-wagmi-and-anvil) (Article, 6/12/2024): How to test web3 apps with React Native. Configure your project using Anvil, Wagmi, Viem, and Web3Modal, and gain insights on writing reliable tests. - [Introducing E2E Tests to React Native Core](https://www.callstack.com/blog/introducing-e2e-tests-to-react-native-core) (Article, 9/12/2023): Learn how End-to-End (E2E) tests were introduced to React Native core through collaboration between Callstack, Microsoft, and Meta engineers. - [Introducing E2E Tests to React Native Core](https://www.callstack.com/podcasts/introducing-e2e-tests-react-native-core) (podcast, 8/23/2023): This episode of the React Native Show dives into the recent introduction of End-to-End (E2E) testing in RNTester. Join us as we unpack the thought process, technical considerations, and practical implementation of this new approach to testing in React Native. - [Performance Regression Testing for React Native](https://www.callstack.com/blog/performance-regression-testing-react-native) (Article, 2/2/2023): As your React Native app grows, its performance tends to degrade. Prevent that from happening with performance regression testing and Reassure. - [A Comprehensive Guide to Mock Service Worker (MSW)](https://www.callstack.com/blog/guide-to-mock-service-worker-msw) (Article, 9/27/2022): Discover our comprehensive guide to Mock Service Worker (MSW) and use the API mocking tool for testing, development, debugging to deliver bug-free code. - [Run Tests for Key Pieces of Your App](https://www.callstack.com/blog/run-tests-for-key-pieces-of-your-app) (Article, 5/12/2022): It’s crucial to check if everything is up and running in your new app. Focus on key pieces and run tests. Find out more about testing apps. - [How to Not Break Your App After Migrating From Tipsi Stripe to Stripe React Native - Migration Guide, Part 4](https://www.callstack.com/blog/how-to-not-break-your-app-after-migrating-to-stripe-react-native) (Article, 2/7/2022): Learn how to not break your app after migrating from Tipsi Stripe to Stripe React Native in the fourth part of teh Tipsi Migration Guide preprared by Callstack, - [Testing React Native Apps in the Cloud - Part 2](https://www.callstack.com/blog/testing-react-native-apps-in-the-cloud-part-2) (Article, 10/29/2020): Learn how to test your app in the cloud by reading the second part of our quick guide. You'll find out how to create such test and conduct it properly. - [Testing React Native Apps In the Cloud - Part 1](https://www.callstack.com/blog/testing-react-native-apps-in-the-cloud-part-1) (Article, 10/22/2020): A quick guide on how to test React Native apps in the cloud instead of using testing devices. In this part, you'll find out how to prepare for this process. - [Look into the Future of React Native Testing Library](https://www.callstack.com/podcasts/look-into-the-future-of-react-native-testing-library) (podcast, 8/11/2020): The first episode of React Universe On Air (formerly known as The React Native Show) provides insights into React Native Testing Library. Mike and his guest give a quick glimpse into the very concept of Testing Library and tell the story behind React Native Testing Library. - [React Native Testing Library With Redux](https://www.callstack.com/blog/react-native-testing-library-with-redux) (Article, 8/5/2020): In this article, we discuss how Redux can be helpful in proceeding tests with React Native Testing Library and how can you benefit from this solution. - [From Enzyme to React Native Testing Library: How I Changed My Way of Unit Testing](https://www.callstack.com/blog/unit-testing-from-enzyme-to-react-native-testing-library) (Article, 7/8/2020): Learn how to move from Enzyme to React Native Testing Library and made unit test more effective and closer to what the users can interact with. - [React Native Testing Library 2.0 - What’s New?](https://www.callstack.com/blog/react-native-testing-library-2-0) (Article, 5/28/2020): React Native Testing Library 2.0 is out now! Read the article and find out what's new. Check our migration guide. - [React Native Testing Library Turns Into Testing Library](https://www.callstack.com/blog/react-native-testing-library-turns-into-testing-library) (Article, 1/10/2020): Find out all about React Native Testing Library becoming Testing Library. Dive into insights and updates as we navigate this transformative journey. - [Testing a React App With Cypress](https://www.callstack.com/blog/testing-react-app-with-cypress) (Article, 11/6/2017): First steps to using Cypress - setup and testing auth actions. - [Time to Detox](https://www.callstack.com/blog/time-to-detox) (Article, 10/5/2017): Check out our guide on how to write e2e test for React Native apps with Detox. - [Type-Checking React and Redux (+Thunk) with Flow - Part 1](https://www.callstack.com/blog/type-checking-react-and-redux-thunk-with-flow-part-1) (Article, 2/5/2017): In this article, we’ll cover how to type-check Redux. This is the first part of a two-part series and only covers React. - [Testing React Native With the New Jest - Part II](https://www.callstack.com/blog/testing-react-native-with-the-new-jest-part-2-redux-snapshots-for-your-actions-and-reducers) (Article, 9/29/2016): A step by step guide to testing React Native with the Jest. Part Two - Redux: Snapshots for your actions and reducers. - [Testing React Native With the New Jest - Part I](https://www.callstack.com/blog/testing-react-native-with-the-new-jest-part-1-snapshots-come-into-play) (Article, 9/9/2016): A step by step guide to testing React Native with the Jest. Part One - Snapshots come into play. - [Testing Your React Native Apps](https://www.callstack.com/blog/testing-your-react-native-apps) (Article, 5/3/2016): A step-by-step guide to testing your React Native apps for iOS ecosystem. ## Need QA that keeps up with AI-native delivery? We help teams automate validation, prevent regressions, and keep applications reliable as delivery speeds up. [Talk to our team](https://www.callstack.com/contact)