---
title: "Introducing E2E Tests to React Native Core"
description: "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."
url: https://www.callstack.com/podcasts/introducing-e2e-tests-react-native-core
updated: 2026-10-24T08:39:42.645Z
---

# Introducing E2E Tests to React Native Core

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.

_Guest: Szymon Rybczak, Software Developer @ Callstack · Host: Łukasz Chludziński, Engineering Manager @ Callstack · Published 2023-08-23 · Duration 36:31 · Category: Testing_

Listen: [YouTube](https://youtu.be/BRHrkd0J62o) · [Spotify](https://open.spotify.com/episode/3aTG6rbh38UtnBwtJXk6I4?si=7k0C6DVORkOldWh1AKzTVQ) · [Apple Podcasts](https://podcasts.apple.com/us/podcast/introducing-e2e-tests-in-rntester-the-react-native/id1525543072?i=1000625538869) · [SoundCloud](https://soundcloud.com/user-985069846/introducing-e2e-tests-in-rntester-the-react-native-show-podcast-26/s-JkNiLEskjZ5?si=55577eacf02a424b8df4917a582bfcee)

In this episode of the React Native Show dives into the recent introduction of End-to-End (E2E) testing in RNTester. Mateusz Ulańczyk and Szymon Rybczak, the people directly involved in making this solution a reality, will give you a candid look at how E2E tests in RNTester can help reduce regressions, speed up releases, and ultimately lead to a more robust codebase.

## E2E testing in React Native

- The context and need for improvement in testing within the React Native ecosystem
- The goal and expected outcomes of introducing E2E testing
- The technical stack behind RNTester-E2E, including Appium and WebDriverIO
- The workflow of RNTester-E2E in practice and how it operates on every PR
- Future plans for RNTester-E2E, including community involvement, device farm integration, and screenshot testing

## Resources for end-to-end testing in React Native

- [Pull request introducing E2E tests in React Native Core](https://github.com/facebook/react-native/pull/36267)
- [RFC for introducing E2E testing in React Native core](https://github.com/react-native-community/discussions-and-proposals/pull/684)
- [Lorenzo’s Twitter thread about RNTester-E2E](https://twitter.com/Kelset/status/1687421331900452865?s=20)
- [Szymon’s Twitter thread with demo](https://twitter.com/SzymonRybczak/status/1684870142839160832?s=20)

Insights

## Learn more about Testing

Here's everything we published recently on this topic.

[View all](https://www.callstack.com/insights)

- [How AI Agents Can Cut Manual QA by 30%](https://www.callstack.com/blog/how-ai-agents-can-cut-manual-qa-by-30) (Oct 30 · Article): 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) (Oct 20 · Article): 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) (Oct 13 · Article): 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) (Oct 12 · Podcast): Szymon Rybczak explains how TesterArmy tests web and mobile apps with AI agents, creates test plans for pull requests, and fits into QA workflows.
- [Automating Mobile QA With Cloud Agents](https://www.callstack.com/blog/automating-mobile-qa-with-cloud-agents) (Aug 4 · Article): 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) (Jul 21 · Webinar): AI can increase code output faster than teams can verify the real app. See why behavior review matters before merge.
- [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) (Jul 6 · Article): 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) (Jul 6 · Talk): 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) (Jun 17 · Talk): Michał Pierzchała will present Automating Mobile QA with Cloud Agents at Ship London on 17 June 2026.