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Shift-Left Testing Adoption

1 post · Mar 2023

What this trail covers

Grab has evolved its software development lifecycle by adopting a comprehensive shift-left testing strategy. This involves software engineers conducting acceptance testing using Given/When/Then criteria, incorporating Definition of Ready (DoR) and Definition of Done (DoD) for improved quality standards, and implementing a balanced testing strategy that includes unit, UI component, backend integration, and end-to-end (E2E) testing. This has led to a significant reduction in production issues and bugs found during development.

All Grab trails
  1. Evolution of quality at GrabThis post details Grab's adoption of shift-left testing to address challenges with high feature bugs and production issues. Key contributions include: 1. Software engineers conducting acceptance testing using Given/When/Then (GWT) format. 2. Incorporation of Definition of Ready (DoR) and Definition of Done (DoD) to standardize quality. 3. Implementation of a balanced testing strategy encompassing unit, UI component (with mocked API responses and ~70% coverage DoD), backend integration (covering happy and unhappy paths), and an internal E2E framework for critical services. The post quantifies the impact with a 60% reduction in critical/major production issues and a 40% reduction in critical/major development bugs compared to 2019.