Systems | Development | Analytics | API | Testing

NYC, often referred to as Istanbul’s command-line interface (CLI), is a powerful code coverage tool designed specifically for JavaScript testing. It works seamlessly with testing frameworks like Mocha, Jest, and Ava, making it an invaluable resource for developers looking to measure and improve the coverage of their tests. NYC not only tracks how much of your code is covered by your existing test suite but also provides detailed reports that help identify untested parts of your codebase.

Tracing TLS (Transport Layer Security) traffic is crucial for modern observability systems. It helps monitor encrypted communication, diagnose issues, and optimize application performance. However, traditional methods like TLS proxying and packet capturing often come with significant performance overheads and security risks. They are not always the ideal solution, particularly for high-performance or security-sensitive environments.

Chaos testing, also known as chaos engineering, is one of the most-used methodology to test the resilience and reliability of systems by intentionally introducing controlled failures. Simply put, the goal is to identify weaknesses and improve a system’s ability to handle unexpected scenarios. Originating from Netflix’s famous Chaos Monkey tool, chaos testing has become a key practice in building robust distributed systems.

Software Testing is the most important step in the software development process. This process helps in validating and verifying that a software application is Bug-free, and the software is improved in terms of efficiency, accuracy and usability. Black Box Testing and White Box Testing are two most useful testing techniques for Software Testing. In this blog, we will be covering more about their definitions, advantages, disadvantages, their types, limitations and tools used for testing.

Let’s talk about stubbing and verifying – two critical tools that transformed how I approach testing. Early in my career, testing was often frustrating, slow, and full of surprises, most of them bad. I used to think testing meant running my app against real systems and crossing my fingers that everything worked. Spoiler: it rarely did. Here’s the thing: testing doesn’t have to be painful.

Network security professionals and observability applications have been trying to trace data in secure TLS connections since a very long time now. TLS( Transport Layer Security) is an encryption protocol that is used by servers are clients for encrypting the data that they share over a connection. Specifically, it uses symmetric encryption which creates a single shared key that both the server and the client use for encrypting and decrypting the data.

The "Cannot use import statement outside a module" error can be quite confusing, especially for those working with JavaScript or Node.js. This error is generally raised in a context that doesn’t recognize ES6 modules when the import statement is referred to. Therefore, discover the cause and solve it.

TCP connections, they are everywhere, almost every online interaction you make, whether it’s streaming your favourite video, sending an important email, or just casually browsing through different websites. They are like the foundational building blocks of the internet and so it’s important for them to be consistent and reliable. As you can see TCP servers get and handle billions of requests in a day, so it’s important for them to be able to do this efficiently.

Selenium has long been the standard for web automation testing, but modern web development demands more flexible, efficient, and developer-friendly solutions. We are Node.js developers and we all know what a Node.js developer wants.

Imagine you’re testing a specific feature in an app, say the login page. You’ve already run your test cases, and things look fine, but you want to go further. What if you hammer this one feature repeatedly, trying to break it by using unexpected inputs or extreme scenarios? Gorilla testing is an approach that is preferred when we are trying to understand in depth about a particular functionality.