Articles | Khalil Stemmler

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#Abstraction Layer #Accidental Complexity #Advanced Object-Oriented Programming #Aggregate #Aggregate Root #Agile #Application Logic #Architecture #Asterisk #BDD #Backend #Books #CRUD #Cheatsheet #Classic TDD #Clean Architecture #Command Query Separation #Core code #DDD #DTO #Database #Dependency Injection #Dependency Inversion #Domain Events #Domain-Driven Design #ES6 #Enterprise software #Essential Complexity #Event-based systems #Express.js #Feature-Driven Development #Frontend Development #Functional Programming #Functional programming #Gatsby #GatsbyJS #GraphQL #IOC Containers #Infrastructure code #Inside-Out TDD #Intention Revealing Interfaces #Inversion of Control #IoC Containers #JavaScript #Jest #Leaky Abstraction #Many-to-many #Mapper pattern #Mocking #Model-View-Presenter #Music #Netlify #Networking #Node.js #ORM #Object-Oriented Programming #Observer Pattern #One-to-many #Outside-In TDD #Professionalism #RESTful APIs #React #Repository pattern #Roadmap #SEO #SOLID #Sequelize #Serverless #Software Craftsmanship #Software Design #Spotify #Starters #TDD #Technical practice #Test-Driven Development #Tutorial #TypeORM #TypeScript #UML #Use Cases #Use cases #Value Object #ts-auto-mock

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How to Test Code Coupled to APIs or Databases Test-Driven Development

typescript test-driven development bdd core code infrastructure code

In the real-world, there's more to test than pure functions and React components. We have entire bodies of code that rely on datab...

How to Mock without Providing an Implementation in TypeScript Test-Driven Development

typescript test-driven development mocking jest ts-auto-mock

Having to provide an implementation everytime you create a test double leads to brittle tests. In this post, we learn how to creat...

When to Use Mocks: Use Case Tests Test-Driven Development

use cases test-driven development outside-in tdd inside-out tdd mocking

Mocking gets a pretty bad rap. However, if you're building an application using object-oriented programming and you're making use ...

Why I Recommend a Feature-Driven Approach to Software Design Software Design

feature-driven development accidental complexity essential complexity

Features represent the essential complexity of software design. It's the complexity that can't be avoided. Everything else — the l...

Introduction to Test-Driven Development (TDD) with Classic TDD Example Test-Driven Development

tdd test-driven development software craftsmanship agile technical practice classic tdd

The best thing tests give us is "feedback". Feedback as to if our designs are good, if there are bugs, and if we're making progres...

GraphQL Schemas vs. RESTful DTOs GraphQL

graphql architecture software design restful apis dto

GraphQL schemas serve a similar purpose to RESTful DTOs. One of the main differences is tooling. In this post, I aim to strengthen...

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