What is the recommended setup to use detox 20.28.0?

[roni-castro-shipt]

Description

We've noticed recently a significant increase in iOS Detox build times and iOS Detox test run times after updating Xcode or iOS versions.

Here’s my setup on CircleCI with the same test cases:

• Xcode: 15.3.0
• Node: 18.15.0
• Detox: 20.23.0
• iOS Version: 17.4 (iPhone 15 Pro Max)

After updating to the following configuration:

• Xcode: 16.1.0
• Node: 18.15.0 or 20.18.1 (changing node version didn't improve performance)
• Detox: 20.28.0
• iOS Version: 18.1 (iPhone 16 Pro Max)

I noticed:

• 25% increase in iOS build time
• 131% increase in Detox test run time, with some timeout failures.

I also tested with Xcode 16.0.0 and iOS 17.5 (iPhone 15 Pro Max), which improved a bit, but the results are still:

• 19% slower iOS build time
• 25% slower Detox test run time

I tested just upgrading Detox to version 20.28.0 and kept the current setup with Xcode 15.3.0 and didn't notice any performance issues, only when running on Xcode 16.0+ and iOS 18+.

I was wondering if Detox supports iOS 18.1. If so, could you share the recommended setup for using Detox 20.28.0 to ensure optimal performance and avoid any potential performance degradation?

Your environment

Detox version: 20.28.0
React Native version: 0.73.11
Node version: 18.15.0
Device model: iPhone 16 Pro Max - iOS version 18.1
OS: macOS 14.6.1
Test-runner (select one): jest

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.
If you believe the issue is still relevant, please test on the latest Detox and report back.

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[roni-castro-shipt]

It seems to be related to Xcode 16+. Waiting for this to be fixed to test again.

https://developer.apple.com/documentation/xcode-release-notes/xcode-16_2-release-notes#Known-Issues

[stale]

The issue has been closed for inactivity.