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Lean TDD

Efficient Software Projects - version 0.1.6

Brian Okken

There are are many great ideas in TDD, Lean, and in how Lean has been attempted to be applied to software development. Many of those ideas are worth keeping. Some ideas need to be expanded to apply to more of the process. Some ideas need to change. And some need dropped, or at least, de-emphasized.

We will do just that, examine the principles of TDD and Lean, examine the "why" of those principles, mix in some other ideas, and then derive some practical practices that make sense to practice in the building of current software projects.

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About

About

About the Book

Lean TDD combines the good parts of both Test Driven Development and Lean Software Development while removing the wasteful aspects.

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Software EngineeringTestingTest-Driven Development

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Author

About the Author

Brian Okken

Lead Software Engineer.

Find me at pythontest.com

Author of Python Testing with pytest

Host of Python Bytes, Test and Code, and Python People podcasts.

Contents

Table of Contents

Introduction

  1. TDD had a huge affect on software development
  2. TDD sales pitch to devs vs managers
  3. Resolving the disconnect
  4. Waste in TDD
  5. What’s in the book
  6. Is this book for you?

State of this in-progress book

  1. Foundations

Essential Components

  1. A successful software project
  2. Automation and Documentation
  3. Acceptance Tests and Developer Tests
  4. Continuous Integration
  5. Staging and Deployment
  6. Release Notes
  7. Notifying Users
  8. What’s this got to do with Lean TDD?

Building on TDD

  1. From Waterfall to Agile
  2. From Extreme Programming to TDD
  3. Test Driven Development
  4. TDD Interpretations
  5. Clarification with “Canon TDD”
  6. Understanding the Why of TDD
  7. Double Loop TDD, BDD, and ATDD
  8. A Need for Change

Building on Lean

  1. Lean Manufacturing
  2. Lean Software Development
  3. Lean Principles
  4. Especially Eliminating Waste
  5. Lean Practices
  6. What are we keeping?
  7. What are we dropping?

Finding Waste in TDD

  1. High level feature work flow
  2. Waste at a project scale
  3. Waste with multiple implementation teams
  4. Waste within TDD
  5. Waste from Splitting up QA and Dev
  6. Lean TDD Practices

Lean TDD Overview

Test Cases and Acceptance Criteria

  1. Features and a List of Test Cases
  2. Acceptance Criteria
  3. Defining Acceptance Criteria
  4. Defining Test Cases

Adding Test Cases as We Develop

  1. Refining Acceptance Criteria

Have a Testable Architecture

  1. Have an API
  2. Treat the UI as an Independently Tested Component
  3. API Adapters

Build Features from the Bones Out

Levels of Promises

Flipping the Pyramid

  1. The Testing Trophy

Everyone Can Run Every Test

  1. Collaboration Through Test Cases
  2. Keep Tests Readable

The Lean TDD Workflow

  1. The Lean TDD Workflow with Teams
  2. Considerations

The Role of Test Engineers

Test Coverage and Behavior Coverage

Balancing Testing and Monitoring

Conclusion

  1. Keep in Touch
  2. Is this it?

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