When testing a component, you basically proceed in the same way as for an ordinary unit test: you prepare the environment, you perform an operation, and check the result.

Rheinwerk Computing is an imprint of Rheinwerk Publishing and publishes books by leading experts in the fields of programming, administration, security, analytics, and more.
Blogs by Rheinwerk Computing
“We should have some ways of connecting programs like garden hose—screw in another segment when it becomes necessary to massage data in another way.”
Azure DevOps is Microsoft’s offering for companies to conduct modern software development with continuous integration/continuous deployment (CI/CD) ...
When you create applications using Node.js, the source code of that application is contained in one or more files.
JavaScript, the backbone of web development, offers a plethora of libraries catering to diverse needs.
Functional programming, like other programming paradigms, follows different principles or has special characteristics. These are essentially as...
It’s a common problem, especially on the web, to validate entered form data and to filter out the important information from the input.
What happens when design and perception come together?
Let’s take a look at the capabilities and features of the module concept in Python; we’ll describe five scientific computing modules in a...
In purely formal terms, scripting languages differ from other, “higher-level” programming languages in that the code is interpreted.
In this blog post, we’ll use the Java compiler and interpreter from the command line. The examples are based on Windows.