Yonatan Kra

Yonatan Kra

Family, Code, Run

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implementation details everywhere

A Tale of Implementation and Detail

August 27, 2023August 28, 2023 Yonatan KraLeave a Comment on A Tale of Implementation and Detail

As a testing advocate, I frequently delve into “implementation details” and “public interfaces.” These terms refer to the inner workings of your API and how it’s presented to users. Rather than just defining them, let’s explore …

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Unit tests in Rust

How to Write Unit Tests in Rust for Tauri?

August 16, 2023September 4, 2023 Yonatan KraLeave a Comment on How to Write Unit Tests in Rust for Tauri?

Tauri is a desktop apps framework built with Rust for its backend and JavaScript for its front end. The first thing I like to do in a project is set up a unit tests infrastructure. I found it surprisingly easy …

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service workers

How Service Workers Sped Up Our Website by 97.5%?

June 21, 2023June 21, 2023 Yonatan KraLeave a Comment on How Service Workers Sped Up Our Website by 97.5%?

Here’s how we made our website load 97.5% faster by using service workers, how we ensure the users will get the newest version every time, and how you can do it too.

Our website is more than 1 year old. …

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Github Actions - Zero to Hero

From Zero to Hero with Github Actions (video)

May 22, 2023May 15, 2023 Yonatan KraLeave a Comment on From Zero to Hero with Github Actions (video)

My talk from JFokus 2023. I spoke about the main building blocks of a CI/CD process with github actions.

…
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Testing Live Session

Live Session: 3 Tips for More Meaningful Tests

May 15, 2023May 15, 2023 Yonatan KraLeave a Comment on Live Session: 3 Tips for More Meaningful Tests

In 12 minutes, I shared with my colleagues three tips I used to refactor tests of legacy code. Testing the API, ensuring the tests fail for the right reason, and avoiding the coupling pitfall are exhibited in this live …

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Live coding an open source feature

Live Coding an Open Source Feature

March 12, 2023March 12, 2023 Yonatan KraLeave a Comment on Live Coding an Open Source Feature

How do I approach a new feature in an open source project? How do I TDD a frontend feature? What do we use for cross-browser testing? All this and more in this live coding session recording

This is the recording …

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Self-hosted runners

How to Use Github Actions Self-Hosted Runners?

March 4, 2023 Yonatan Kra1 Comment on How to Use Github Actions Self-Hosted Runners?

How and when to run Github Actions jobs on your own machine?

In a previous blog, I wrote about using your own Docker images with Github actions. One of the comments was about contacting private or custom docker registries …

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A Vivid birthday

How to Build a Vivid Birthday Quiz in 20 minutes?

February 26, 2023February 27, 2023 Yonatan Kra1 Comment on How to Build a Vivid Birthday Quiz in 20 minutes?

Vivid, Vonage’s design system, is now published. What better way to celebrate Vivid’s public birthday than to build a birthday quiz? Let’s have a vivid birthday!

Vivid is an open-source vanilla JavaScript design system built upon the web components technology. …

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Magic Trick to Write Effective Tests

The One Trick to Writing Effective Tests

February 20, 2023February 20, 2023 Yonatan KraLeave a Comment on The One Trick to Writing Effective Tests

How do you know your test is effective? How do you know your test protects you from breaking changes? And how can you do TDD without doing TDD? The best distillment of TDD taken from a TDD workshop in JFokus.…

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Improve Your Tests Like a Ninja

3 Simple Habits to Improve Your Tests

February 12, 2023February 12, 2023 Yonatan KraLeave a Comment on 3 Simple Habits to Improve Your Tests

How can tests be your best documentation? What small changes can improve the contract between your code and its consumers? Learn how to improve your tests from a real-world example.

Yes, we write them to ensure fewer things break before …

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I’m an instructor at:

Egghead.io

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Recent Posts

  • Busting Legacy Code with AI Agents and Test Driven Development
  • Meaningful Tests: Human Hubris vs. AI
  • What can we learn from building a BlueSky web component bot?- Part 1
  • How to Remove a Secret Token from Your Git History
  • How to Deploy Static Websites with Nx, GitHub, and Cloudflare?
  • Busting Legacy Code with AI Agents and Test Driven Development
  • Meaningful Tests: Human Hubris vs. AI
  • What can we learn from building a BlueSky web component bot?- Part 1
  • How to Remove a Secret Token from Your Git History
  • How to Deploy Static Websites with Nx, GitHub, and Cloudflare?
  • Implementing Your Own SSR Server for Web Components

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