Clean Code

Session 1

Hands-on Exercise

Use case development in groups to assess the “as-is” state.

Demo of use case – What worked? Discuss the challenges faced.

Session 2

Opportunities for clean code in the use case developed

Meaningful Names

Functions

Stepdown rule

Arguments

DRY

Comments

Good vs bad comments

Error Handling

Exceptions

Try-Catch-Finally

Unchecked exceptions

Classes

SRP

Encapsulation

Cohesion/Coupling

Testing – Basics

UT/IT/ST

Test Pyramid

Emergent Design, clean architecture

Session 3

Test-Driven Development (TDD/BDD)

Use story definition and Acceptance criteria

BDD

How to think of customer scenarios and formulate test cases?

Evolve software design to deliver “customer value” in short cycles

Test-Code-Refactor Cycle

Hands-on Exercise - Use case development (same exercise as in session -1) in groups using BDD/TDD (Mob programming)

Compare and contrast “traditional” approach” with “BDD approach”

Mindset of Speed = Quality

Session 4

Evolution of Test pyramid (“Shift-left” quality)

Test Doubles - What to mock?

Refactoring                         

When and how (smells to look for)

Techniques (SOLID principles, patterns)

Continuous everything (Integration, Testing, Deployment)

Key Code quality KPIs to look for

Hands-on Exercise – Real-time use case from project

Test design

Apply BDD and TDD to real-time use case