Test-Driven Development in JavaScript (2-days)

Training and coaching in the technical disciplines that make sustainable software innovation possible

Codemanship Ltd

2-day live, online, instructor-led training workshop in Test-Driven Development

Test-Driven Development is a foundational discipline for Agile software delivery.

On this course, you will learn how to design high-quality working software using tests as specifications, how to keep your code easy to change with refactoring, and how to scale the technique to complex, real-world architectures.

With an emphasis on the practical, this workshop is packed full of hands-on demonstrations (20%) and exercises (80%). Participants learn together with pair and mob programming.We've trained thousands of developers in TDD over the last decade, and this workshop has been distilled and refined from all that experience.

<h2>Day #1</h2><h3>The TDD Cycle</h3>Learn to design and develop in micro-iterations of 3 steps<ul><li>Red Light
 - Write a failing test that describes what you want the software to do</li><li>Green Light
 - Write the simplest code to the pass the test</li><li>Refactor - Improve the code where necessary to ensure it will be easy to change</li></ul><h3>TDD Good Habits
</h3>Make your Test-Driven Development more effective and sustainable<ul><li>Assert First
 - Start with the "what", not the "how"</li><li>See The Test Fail
 - Test your test before you make it pass</li><li>One Reason To Fail
 - Write tests that pinpoint errors</li></ul><h3>What Should We Test?
</h3>Learn how to write tests that are better at driving good designs<ul><li>Meaningful Tests
 - Write tests that ask questions the user cares about</li><li>Test Lists
 - Organise your thinking and track your progress with these powerful roadmaps</li><li>Obvious Implementations
 - Avoid falling into the "too many tests" trap by knowing when it's okay to take a leap</li></ul>

<h2>Day #2</h2><h3>Duplication &amp; Design
</h3>Create better abstractions through refactoring<ul><li>Duplication vs Reuse
 - How to discover abstractions in our design by examining duplicate code
</li><li>
The Rule Of Three
 - How to avoid "leaky" abstractions and leaving refactoring too late
</li><li>
When To Leave Duplication In
 - How to balance removing duplication against other design needs</li></ul><h3>Approaches To TDD
</h3>Learn the two different styles of Test-Driven Development
<ul><li>Inside-Out TDD
 - Test-drive pieces of your internal design and then wire them together at the top
</li><li>
Outside-In TDD
 - Start on the outside and let the internal design emerge through refactoring

</li><li>Pros &amp; Cons
 - The advantages and disadvantages of both approaches</li></ul><h3>Scaling TDD With Test Doubles
</h3>Learn how to test-drive complex, multilayered architectures using stubs and mocks
<ul><li>Stubs
 - Write fast-running unit tests for modules that need data from external dependencies
</li><li>
Mocks
 - Write unit tests about interactions with external dependencies
</li><li>
Outside-In With Test Doubles
 - Test-drive multi-layered designs with external dependencies using stubs and mocks</li></ul>

<h2>FAQ</h2>Who should attend? This training workshop is aimed at JavaScript developers with at least one year&#x27;s experience programming in their chosen language. It&#x27;s often attended by technical leaders who wish to keep their code craft skills up-to-date, too.What should I bring? You will need a suitable computer with your favourite JavaScript editor/IDE installed. You&#x27;ll need a reliable Internet connection (10 Mbps+), and a webcam and microphone. If your working environment is noisy, noise-cancelling headphones will help. You will find a pen and paper handy.Who will be our trainer? Codemanship founder and course author Jason Gorman. Jason has 38 years&#x27; programming experience and three decades of professional experience as a developer, technical lead and software architect. He&#x27;s run hundreds of code craft training workshops over the last 20 years, and is a very experienced teacher and mentor.Will I be writing code? Yes. You will most definitely be writing code in this workshop. Business analysts, testers, project managers etc may find it useful to sit in and observe -at no charge - if they want to gain an understanding of Test-Driven Development and how it fits into the overall software development cycle, but this is 100% a hands-on workshop.Is this workshop self-paced or recorded video? No. This is 100% live instructor-led training, with limited participants to ensure real-time interaction and guidance.

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Test-Driven Development in JavaScript (2-days)

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