TDD - Optivem

TDD

TDD: Test Doubles in Unit Testing. Should we use Fakes? Stubs? Mocks?

February 14, 2022

TDD: Test Doubles in Unit Testing. Should we use Fakes? Stubs? Mocks? In unit testing, Test Doubles are used to …

TDD in the real world. Clean architecture in the real world.

February 10, 2022

DD in the real world. Clean architecture in the real world. A common complaint regarding TDD training is that we …

Is acceptance testing only at E2E level?

February 9, 2022

Is acceptance testing only at E2E level? Can our unit tests also be acceptance tests? Case 1. Web App: Suppose …

When do we make design decisions inside a TDD red-green-refactor cycle?

February 8, 2022

When do we make design decisions inside a TDD red-green-refactor cycle? In Mockist TDD, we’re making all decision decisions early,…

TDD and Clean Architecture – Driven by Behaviour

February 7, 2022

TDD and Clean Architecture – Driven by Behaviour TDD is painful for many teams. Unit testing takes up so much …

TDD and Clean Architecture – Driven by Behaviour

February 4, 2022

TDD and Clean Architecture – Driven by Behaviour YouTube recording: https://lnkd.in/eNBYHwdD 1. Why are we here – TDD is painful,…

The nightmare of flaky tests

February 3, 2022

The nightmare of flaky tests. And how to solve it. Remember those tests which SOMETIMES pass and SOMETIMES fail… without …

How to fail at TDD?

February 1, 2022

How to fail at TDD? TDD is painful for many teams. But over time, we learned to accept the pain.…

Without TDD, your KEY DEVELOPER is the ONLY person who knows how the details about the system behaviour.

January 31, 2022

Without TDD, your KEY DEVELOPER is the ONLY person who knows how the details about the system behaviour. Only they …

TDD and Hexagonal Architecture – Unit Testing Use Cases

January 28, 2022

TDD and Hexagonal Architecture – Unit Testing Use Cases Is your job just to write some code? Or to build …

How do automated tests affect development team productivity?

January 26, 2022

How do automated tests affect development team productivity? Feedback? Quality? Speed? 1. If we have automated tests: When a developer …

What’s a Unit Test? Integration Test? E2E Test?

January 25, 2022

What’s a Unit Test? Integration Test? E2E Test? Classicist vs Mockist interpretations? What’s a unit, interface & implementation? 1. UNIT …

Can TDD make you non-agile?

January 24, 2022

Can TDD make you non-agile? Yes. When it’s done poorly. Let’s go back to agility: Agility is about being responsive …

You can’t be agile without TDD. Not sustainable.

January 21, 2022

You can’t be agile without TDD. Not sustainable. Well, you may “appear” to be agile without TDD during the first …

How does TDD help us navigate a complex world?

January 18, 2022

How does TDD help us navigate a complex world? Certainty in an uncertain world? In TDD, when we write unit …

Does TDD mean someone is a better developer?

January 18, 2022

Does TDD mean someone is a better developer? Does TDD automatically lead to amazing design? Does TDD turn development into …

If you don’t know where you’re going… how will you reach your destination?

January 17, 2022

If you don’t know where you’re going…… How will you reach your destination? If you don’t know exactly what the …

Why is software development so slow?

January 17, 2022

Why is software development so slow? Why does it take too long to implement simple changes? John: “How long will …

When TDD goes bad

January 13, 2022

When TDD goes bad. When you feel that TDD is working against you. When you feel like it’s a big …

What’s worse? TDD does badly? Or TLD done badly?

January 12, 2022

What’s worse? TDD does badly? Or TLD done badly? Which one causes MORE damage? When talking about TDD, we always …

TDD isn’t as easy as it looks. Clean architecture isn’t either.

January 11, 2022

TDD isn’t as easy as it looks in tutorials. Clean architecture isn’t either. A common complaint regarding TDD training is …

TLD = Running around in circles!

January 11, 2022

TLD = Running around in circles! TLD provides longer feedback loops, you have more rework.TDD provides shorter feedback loops, you …

TDD provides 5 rapid feedback loops

January 10, 2022

TDD provides 5 rapid feedback loops during software development. Feedback loops are essential in keeping us on-track towards reaching goals.…

TIME is MONEY

January 5, 2022

TIME is MONEY. We don’t want to waste time. Can we PROVE what’s faster? Test-Driven Development (TDD) vs Test-Last Development …

100% Unit Testability in Hexagonal Architecture

January 4, 2022

100% Unit Testability in Hexagonal Architecture Let’s go back in time… to the “traditional” 3-layered architecture. Here, we implement the …

Unit tests: Run in isolation. Run fast. Run deterministically.

January 3, 2022

Unit tests: Run in isolation. Run fast. Run deterministically. Running in isolation means the tests should be independent of each …

Talent wins games, but teamwork and intelligence wins championships – Michael Jordan

December 31, 2021

Talent wins games, but teamwork and intelligence wins championships – Michael Jordan Hero culture and firefighting are short-term strategies. Not …

Chicago TDD vs London TDD – Which one is should you use?

December 28, 2021

Chicago TDD vs London TDD – Which one is should you use? Is there one GLOBAL answer or is it …

DD Dialogue: London School vs Chicago School

December 27, 2021

TDD Dialogue: London School vs Chicago School. Do you find contradictions when reading about TDD? People can’t agree on what’s …

How do you know that your User Story is truly “Done”?

December 27, 2021

How do you know that your User Story is truly “Done”? How do you know that existing functionality isn’t broken …

Continuous Value Delivery: A Spectrum

December 24, 2021

Continuous Value Delivery: A Spectrum “Value” refers to the business value that the business gets from the usage of the …

The failed Agile Transformation.

December 21, 2021

The failed Agile Transformation. … This is a story of what happens when companies introduce “agile” but do NOT introduce …

You can’t be agile without CI/CD and TDD.

December 17, 2021

You can’t be agile without CI/CD and TDD. Unfortunately, agility is often “sold” as a PM silver bullet, e.g. that …

3 Stories – Test Last Development (TLD) and Test Driven Development (TDD)

December 13, 2021

Story 1: Endless Test-Last Development (TLD) – a common reality Month 1-3: “We’re just getting started, this is just a …

Test-Last Development (TLD) vs Test Driven Development (TDD)

December 10, 2021

STORY 1: Test-Last Development (TLD) Month 1-3: “We’re just getting started, this is just a simple CRUD application, we’ll skip …