🧠 Test-Driven Development (TDD)
I use Test-Driven Development (TDD) to build systems that are reliable, testable, and safe to change.
🎯 How I Think About It
TDD is a development approach where I:
1. write a test for expected behavior
1. implement the code to pass the test
1. refactor while keeping tests passing
👉 This ensures that code is driven by requirements and expected outcomes, not assumptions
🧩 How I Apply TDD
Start with Behavior
I define what the system should do before writing implementation
focus on expected inputs and outputs
👉 keeps logic aligned with requirements
Small Iterations
write small tests
implement minimal code to pass
repeat
👉 reduces complexity and risk
Refactoring with Confidence
once tests pass, I improve code structure
tests ensure behavior remains correct
👉 enables safe refactoring
🧠 Benefits I Focus On
early detection of bugs
clearer understanding of requirements
safer changes and refactoring
better-designed, loosely coupled code
⚖️ Tradeoff Awareness
TDD can:
slow down initial development
require discipline and good test design
But it helps:
reduce debugging time later
improve long-term maintainability
📌 Practical Approach
I don’t force TDD everywhere.
I use it especially for:
complex business logic
critical workflows
areas that change frequently
💬 Summary
My approach to TDD focuses on:
building correct behavior first
ensuring confidence in changes
maintaining long-term code quality
This helps deliver systems that are stable, testable, and easy to evolve.