Basic Knowledge
Building a Secure CI/CD Pipeline: A Comprehensive Guide This listicle provides eight essential CI/CD security best practices for building a robust and secure software delivery process. Learn how to integrate security throughout your application lifecycle, covering crucial areas like code scanning, secret management, supply chain security, IaC security,
Best Practices
DORA metrics have become a staple in the world of software engineering management. Initially popularized by the "Accelerate" book and Google's State of DevOps reports, they've become a kind of north star for measuring engineering efficiency. You'll find them referenced in strategy
Basic Knowledge
Level Up Your Development with the Right CI/CD Tools Streamline your development pipeline and accelerate releases with the right CI/CD tools. This listicle presents the 10 best CI/CD tools for 2025, helping you solve integration and delivery challenges. Discover which of these tools—Mergify, Jenkins, GitHub Actions,
DORA metrics have become a staple in the world of software engineering management. Initially popularized by the "Accelerate" book and Google's State of DevOps reports, they've become a kind of north star for measuring engineering efficiency. You'll find them referenced in strategy
You push a PR. CI kicks off. Ten minutes later, red. You check the logs. It’s a test that fails every now and then — you’ve seen it flake before. It times out, or throws a weird assertion. Maybe it’s infra. Maybe it’s racey. Maybe you don’
A few weeks ago, something broke in production. No big deal — we've all been there. I did what I’ve done hundreds of times before: Checked logs, wrote a patch, pushed to a new branch, and waited for CI. Except CI failed. Not because of my change, but
At Mergify, we’re growing. That means we’re hiring. And hiring means rejecting candidates—sometimes, a lot of them. It’s one of our hiring process's hardest and most uncomfortable parts. But it’s also one of the most important. Here’s how we do it, why
At Mergify, we merge more than 1M pull requests every year on behalf of our users. That’s not a brag about volume. That’s a statement of purpose. Because behind every single one of those pull requests, there’s one simple promise we’re keeping: 👉 Your CI will never
Python is a fantastic language for writing elegant and flexible wrappers around functions and classes. Wrapping functions is a common practice in software engineering—whether you’re abstracting a third-party library, simplifying a complex API, or just reducing boilerplate. However, blindly wrapping functions without proper type annotations is a dangerous
Writing about continuous merge, software development, CI/CD and technical topics.
Level Up Your DevOps Game: Automating for Success Want faster releases and smoother workflows? DevOps automation tools are essential for modern software development. This listicle presents ten leading platforms—from established players like Jenkins and Ansible to rising stars like Mergify and CircleCI—to help you choose the right DevOps
Understanding Pytest Logging: Beyond the Basics Pytest is a popular Python testing framework known for its simplicity and power. But it offers much more than just basic assertion checks. Its robust logging capabilities can transform your tests into powerful diagnostic tools, giving you deep insights into your code's
Getting Started With Using Pytest: First Steps To Success Starting your testing journey with pytest is a smooth experience, especially compared to frameworks like unittest. One of the first things you'll notice is how pytest simplifies the process. It significantly reduces the amount of boilerplate code, allowing you
The Power of Pytest Assert Raises: Why It Matters Exception handling is crucial for creating robust software. Well-handled exceptions prevent crashes and provide valuable debugging information. Testing these mechanisms, however, can be challenging. That's where pytest assert raises comes in, simplifying and streamlining exception testing. Imagine testing code
Why Pytest Is Transforming Python Testing Pytest has rapidly become the go-to testing framework for many Python developers. This isn't a passing trend; it's a fundamental shift. Pytest simplifies what used to be a complicated and often tedious process. Unlike older frameworks like unittest and nose,
On May 16th, 2025, Mergify experienced a significant service disruption from 06:00 UTC to 09:51 UTC. This post-mortem outlines the incident's context, our response, resolution, and the steps we're taking to prevent future occurrences. Context Mergify's infrastructure is hosted on Google Cloud
Python Testing Frameworks Face-Off Choosing the right testing framework is crucial for efficient software development. This listicle directly compares popular Python testing tools, including unittest vs pytest, to help you select the best fit for your project. Quickly discover the strengths and weaknesses of unittest, pytest, nose2, doctest, and Robot
The Foundation: Why Pytest Setup Changes Everything Setting up tests can be a real headache. Thankfully, Pytest simplifies this process. This popular Python testing framework is changing how developers approach testing, leading to more comprehensive and maintainable test suites. One of Pytest's strengths is its minimalist approach to
The Power of Pytest Monkeypatch: Why It Matters Pytest monkeypatch is a powerful tool for isolating tests and ensuring reliable results. It allows developers to temporarily modify the behavior of their code, which is essential for predictable testing. Think about testing a function that interacts with an external API. Network
Mastering Pytest's Stdout Capture System Pytest offers a robust output capture system, a crucial tool for Python developers. This system provides valuable insights into your code's runtime behavior, significantly improving debugging and testing efficiency. By intelligently intercepting output streams, pytest offers a clear view of what&
Understanding How Pytest Handles Print Output Pytest, the popular Python testing framework, handles print statements in a specific way, which is crucial for effective debugging. Understanding this behavior will help you interpret and utilize those helpful debug messages during your tests. Let's explore why your print statements might
Demystifying Shift Left Testing: Breaking Down the Essentials Shift left testing fundamentally changes how we think about testing in the software development lifecycle (SDLC). Instead of testing being a final hurdle before release, shift left testing integrates it from the very start of development. This proactive approach aims to catch
