Learning
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Performed Architectural Review and Refactoring of Graph Validation Feature:
- Identified technical debt in the monolithic
validateGraphfunction (162 lines, “God Function” mixing disparate rules) - Created detailed refactoring plan with 3 slices, ordered by risk: Components → Mapper → Validation Strategies
- Key architectural patterns applied:
- Strategy Pattern for Validation: Orchestrator (
graph-validation.ts) coordinates validators but knows nothing about specific rules - Smart Components, Dumb Containers: Pushed edge path complexity down into
CustomEdgesoLineageGraphbecomes declarative - Hexagonal Architecture: Domain layer (validators) is pure TypeScript with zero UI dependencies;
reactflow-mapper.tsacts as Anti-Corruption Layer
- Strategy Pattern for Validation: Orchestrator (
- Identified technical debt in the monolithic
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Documented Architectural Insights:
- Created comprehensive architecture review with Mermaid dependency diagram
- Analyzed the codebase through the lens of Hexagonal Architecture (Ports and Adapters)
- Key insight: The separation allows business logic to be tested without a browser and makes the UI library swappable
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E2E testing:
- Robust Testing with
data-testid: Relying on text content is fragile; usedata-testidand configure production builds to strip them viareactRemoveProperties - Visual Verification Strategy: “If it’s visual, the test should take a picture” - use screenshot assertions for reproducible, version-controlled artifacts
- Robust Testing with