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Saravanan Rajaraman 7f7b1b9b46 feat: Adds React 18 and 19 migration plugin (#1339 )

- Adds React 18 and 19 migration orchestration plugins
- Introduces comprehensive upgrade toolkits for migrating legacy React 16/17 and 18 codebases to React 18.3.1 and 19, respectively. Each plugin bundles specialized agents and skills for exhaustive audit, dependency management, class/component API migration, test suite transformation, and batching regression fixes.
- The React 18 toolkit targets class-component-heavy apps, ensures safe lifecycle and context transitions, resolves dependency blockers, and fully automates test migrations including Enzyme removal. The React 19 toolkit addresses breaking changes such as removal of legacy APIs, defaultProps on function components, and forwardRef, while enforcing a gated, memory-resumable migration pipeline.
- Both plugins update documentation, plugin registries, and skill references to support reliable, repeatable enterprise-scale React migrations.

2026-04-09 15:18:52 +10:00

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Test File Scans - Both Auditors

Scans specifically for test file issues. Run during both R18 and R19 audits.

Setup Files

# Find test setup files
find src/ -name "setupTests*" -o -name "jest.setup*" 2>/dev/null
find . -name "jest.config.js" -o -name "jest.config.ts" 2>/dev/null | grep -v "node_modules"

# Check setup file for legacy patterns
grep -n "ReactDOM\|react-dom/test-utils\|Enzyme\|configure\|Adapter" \
  src/setupTests.js 2>/dev/null

Import Scans

# All react-dom/test-utils imports in tests
grep -rn "from 'react-dom/test-utils'\|require.*react-dom/test-utils" \
  src/ --include="*.test.*" --include="*.spec.*" 2>/dev/null

# Enzyme imports
grep -rn "from 'enzyme'\|require.*enzyme" \
  src/ --include="*.test.*" --include="*.spec.*" 2>/dev/null

# react-test-renderer
grep -rn "from 'react-test-renderer'" \
  src/ --include="*.test.*" --include="*.spec.*" 2>/dev/null

# Old act location
grep -rn "act.*from 'react-dom'" \
  src/ --include="*.test.*" --include="*.spec.*" 2>/dev/null

Render Pattern Scans

# ReactDOM.render in tests (should use RTL render)
grep -rn "ReactDOM\.render\s*(" \
  src/ --include="*.test.*" --include="*.spec.*" 2>/dev/null

# Enzyme shallow/mount
grep -rn "shallow(\|mount(" \
  src/ --include="*.test.*" --include="*.spec.*" 2>/dev/null

# Custom render helpers
find src/ -name "test-utils.js" -o -name "renderWithProviders*" \
  -o -name "customRender*" -o -name "render-helpers*" 2>/dev/null

Assertion Scans

# Call count assertions (StrictMode sensitive)
grep -rn "toHaveBeenCalledTimes" \
  src/ --include="*.test.*" --include="*.spec.*" 2>/dev/null

# console.error assertions (React error logging changed in R19)
grep -rn "console\.error" \
  src/ --include="*.test.*" --include="*.spec.*" 2>/dev/null

# Intermediate state assertions (batching sensitive)
grep -rn "fireEvent\|userEvent" \
  src/ --include="*.test.*" --include="*.spec.*" -A 1 \
  | grep "expect\|getBy\|queryBy" | head -20 2>/dev/null

Async Scans

# act() usage
grep -rn "\bact(" \
  src/ --include="*.test.*" --include="*.spec.*" 2>/dev/null

# waitFor usage (good - check these are properly async)
grep -rn "waitFor\|findBy" \
  src/ --include="*.test.*" --include="*.spec.*" | wc -l

# setTimeout in tests (may be batching-sensitive)
grep -rn "setTimeout\|setInterval" \
  src/ --include="*.test.*" --include="*.spec.*" 2>/dev/null

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