When writing tests in Python, I always choose the pytest test framework. It’s concise, feature-rich has a great ecosystem of plugins, is widely used, and supported in the community. One aspect which makes it blend seamlessly with the code under test is how test input can be passed to it. Within this part of the usual arrange-act-assert structure of tests, let’s explore one particular feature: parametrization.
I did a lot of systems programming in the last couple of months. In Python. Time to explore how I would do that in a language that is closer to the system yet brings guarantees I’d love to have in Python as well: Rust. But what are the core concepts, how does Rust code feel like? Let’s find out.
This post gives a quick and very brief introduction on how to use MongoDB with Ruby. We will see how to install and connect to a MongoDB, how to populate the database with fake documents generated in just a couple of lines of code, and how to build some queries to gain insights into the stored documents.
In this post I describe my journey from knowing essentially nothing about Docker to having a dockerized Padrino application with each service living in its own container (more on that below). We begin with the very basics: ensuring that Docker and docker-compose are installed, creating a minimal Docker setup, and generating a new toy Padrino application within its container. We then continue with a brief overview of the most basic Docker nomenclature and concepts and apply it to our setup by describing one container for each service: the Padrino application backed by a PostgreSQL database. Finally, we discuss how to initialize our PostgresSQL database and running commands inside containers, and how to upgrade whole containers