Description

🎯 Overview

This PR implements comprehensive improvements to our CI/CD infrastructure by migrating to Cirrus Labs runners for iOS testing and implementing various E2E testing optimizations and fixes.

🏗️ Infrastructure Changes

Runner Configuration

• Cirrus Labs Integration: Migrated iOS E2E tests to use ghcr.io/cirruslabs/macos-runner:sequoia runners
• Runner Size Optimization: Implemented XL build configurations for improved performance
• Multi-platform Support: Enhanced workflow configurations for both iOS and Android platforms

Build System Improvements

• iOS Build Speed Optimization: Reduced build times through optimized configurations and caching
• Detox Framework Caching: Implemented proper cache management for iOS testing framework
• Environment Variable Management: Streamlined E2E test environment setup with proper variable passing

🧪 E2E Testing Enhancements

Test Reliability & Stability

• Flake Reduction: Fixed multiple E2E test flakes across iOS and Android platforms
• Synchronization Improvements: Enhanced wallet creation and token list loading stability
• iPhone Model Updates: Updated Detox configuration to use iPhone 16 Pro with iOS 18.6
• Timeout Handling: Improved test timeout management and retry mechanisms

Test Infrastructure

• Matrix Testing: Implemented test splitting and parallelization for improved efficiency
• Artifact Management: Enhanced build artifact handling and reuse capabilities
• Debug Utilities: Added sleep utility functions and text input delays for better test stability

Changelog

CHANGELOG entry:

Related issues

Fixes:

Manual testing steps

Feature: my feature name

  Scenario: user [verb for user action]
    Given [describe expected initial app state]

    When user [verb for user action]
    Then [describe expected outcome]

Screenshots/Recordings

Before

After

Pre-merge author checklist

• I’ve followed MetaMask Contributor Docs and MetaMask Mobile Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.