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6/30/2026
Shifting Left: How TDD Became the Foundation of SokoFlow's Core Engine

Shifting Left: How TDD Became the Foundation of SokoFlow's Core Engine

Short summary

SokoFlow, a conversational ERP for Kenyan shopkeepers, used Test-Driven Development in Month 1 to build a headless backend with FastAPI and PostgreSQL, achieving 40+ tests and 92% coverage. The Red-Green-Refactor cycle forced deeper thinking about edge cases before implementation. The project demonstrates scaling TDD from controlled environments to messy cloud-native reality with unreliable infrastructure and third-party APIs.

  • •SokoFlow: conversational ERP for Kenyan SMEs via WhatsApp, built on headless architecture
  • •Month 1 achieved 40+ tests and 92% code coverage using Test-Driven Development cycles
  • •TDD shifted focus from design-then-code to test-driven design, forcing clearer thinking about system behavior

Generated with AI, which can make mistakes.

#product-launch#certification-education#ai-tools#ai-agents
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