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Red Hat Enterprise Linux 9 Essentials
Arguably one of the most highly regarded and widely used enterprise-level operating systems available today is the Red Hat Enterprise Linux (typically shortened to RHEL and pronounced rell ) distribution. Not only is it considered to be among the most stable and reliable operating systems, it is also backed by the considerable resources and technical skills of Red Hat, Inc. Red Hat Enterprise Linux 9 Essentials is designed to provide detailed information on the installation, use, and administration of the Red Hat Enterprise Linux 9 distribution. For beginners, the book covers topics such as operating system installation, the basics of the GNOME desktop environment, configuring email and web servers, and installing packages and system updates using App Streams. Additional installation topics, such as dual booting with Microsoft Windows, are also covered, together with all important security topics, such as configuring a firewall and user and group administration.
For the experienced user, topics such as remote desktop access, the Cockpit web interface, logical volume management (LVM), disk partitioning, swap management, KVM virtualization, Secure Shell (SSH), Linux Containers, and file sharing using both Samba and NFS are covered in detail to provide a thorough overview of this enterprise class operating system.
eBook
Pro Python best practices : debugging, testing and maintenance
Learn software engineering and coding best practices to write Python code right and error free. In this book you'll see how to properly debug, organize, test, and maintain your code, all of which leads to better, more efficient coding.
Book
Testing Elixir
Elixir offers new paradigms, and challenges you to test in unconventional ways. Start with ExUnit: almost everything you need to write tests covering all levels of detail, from unit to integration, but only if you know how to use it to the fullest - we'll show you how. Explore testing Elixir-specific challenges such as OTP-based modules, asynchronous code, Ecto-based applications, and Phoenix applications. Explore new tools like Mox for mocks and StreamData for property-based testing. Armed with this knowledge, you can create test suites that add value to your production cycle and guard you from regressions.Write Elixir tests that you can be proud of. Dive into Elixir's test philosophy and gain mastery over the terminology and concepts that underlie good tests. Create and structure a comprehensive ExUnit test suite, starting from the basics, and build comprehensive test coverage that will provide safety for refactoring and confidence that your code performs as designed. Use tests to make your software more reliable and fault tolerant.Explore the basic tool set provided by ExUnit and Mix to write and organize your test suite. Test code built around different OTP functionality. Isolate your code through dependency injection and by using Mox. Write comprehensive tests for Ecto projects, covering Ecto as a database tool as well as a standalone data validation tool. Test Phoenix channels from end to end, including authentication and joining topics. Write Phoenix controller tests and understand the concepts of integration testing in Elixir. Learn property-based testing with StreamData from the author who wrote the library.Code with high confidence that you are getting the most out of your test suite, with the right tools that make testing your code a pleasure and a valuable part of your development cycle.What You Need:To get the most out of this book, you will need to have installed Elixir 1.8 or later and Erlang/OTP 21 or later. In order to complete the relevant chapters, you will also need Ecto 3.1 or later, EctoSQL 3.1 or later and Phoenix 1.3 or later.
eBook
Refactoring for Software Design Smells
This book presents 25 structural design smells (indicators of common design problems), their role in identifying design issues, and potential refactoring solutions. Organized across common areas of software design, each smell is presented with diagrams and examples illustrating the poor design practices and the problems that result, creating a catalog of nuggets of readily usable information that developers or engineers can apply in their projects. This resource presents a unique naming scheme for smells that helps understand the cause of a smell as well as points toward its potential refactoring; covers pragmatic techniques for refactoring design smells to manage technical debt and to create and maintain high-quality software in practice; and presents insightful anecdotes and case studies drawn from the trenches of real-world projects. --
eBook
Visual Studio code : end-to-end editing and debugging tools for web developers
The choice of a code editor is an important one for any web developer. Visual Studio Code, the free and open-source editor from Microsoft has swiftly become a favorite in the coding community. It provides all the basics in a lightweight package and adds a number of features that set it apart from other editors. Whether you are new to the program or are already a user, Visual Studio Code will equip you with a thorough knowledge of the out-of-the-box functionality and the available extensions for your cross-platform code editor of choice. This book is appropriate for developers using Visual Studio Code on Windows, Mac, or Unix, and guides you through the installation process for each platform. A detailed inventory of features, follows the development workflow, so you can follow along with this book to set up your workspace, project files, code editing tools, and source control integration as you go. Additionally, Visual Studio Code guides you through the extensibility features of the code editor, so you can locate and install key extension from additional language support to useful new functionality. Finally, this book will show you how to create your own extensions to make Visual Studio Code exactly what you need your code editor to be. Visual Studio Code is an essential guide to: Navigating and customizing the workspace ; Editing code in your language of choice using syntax coloring, refactoring support, and other productivity-enhancing features ; Choosing and implementing a file structure appropriate to your needs.
Book
Playwright Python and Pytest for Web Automation Testing
Unlock the power of modern web automation testing with our comprehensive course. Learn to harness Playwright, Pytest, and advanced testing techniques for efficient, reliable, and capable automation. Key Features: The course is designed to accommodate learners from all backgroundsThe course is comprehensible, empowering to you emerge as a proficient web automation testerProgress from crafting basic tests to deploying advanced automated testing solutions with ease. course Description: Playwright is a cutting-edge browser automation tool that empowers you to test and automate seamlessly. Pair this with Pytest, a versatile Python testing framework, and you will unlock a whole new level of testing prowess. In this course, you go through the integration of Playwright’s capabilities into the Pytest framework, leveraging the power of the pytest-playwright plugin. Starting with the fundamentals of testing using Pytest, dive into the pytest-playwright plugin and . Explore a range of Playwright tools. Learn to use web-first assertions with expect(), conquer modern testing challenges in the UI Testing Playground, and gain mastery over Playwright fixtures, custom setup/teardown routines, and test hooks. Implement the Page Object Model for organized testing, handle network events seamlessly, and delve into REST API testing, authentication, and API request context. Next, you will discover optimization techniques such as parallelism, and understand how to deploy your automated tests seamlessly into your CI pipeline. Parameterize your tests with predefined test data for versatility and efficiency, and embrace the principles of behavior-driven development with Python Behave. By the course’s end, you will have the skills and knowledge to craft automated tests that deliver speed, reliability, and robustness using Playwright and Pytest. What you will learn: Write Python scripts to launch browsers and automate tasks performe. Locate web elements using various methods and perform actions on web elementsLog in to websites and authenticate yourself using your accounts. Write a script to automate inbox mail checking for new emails and reporting. Deploy automated tests using GitHub CIPractice behavior-driven development with Playwright and Python Behave. Who this course is for: This course caters to a diverse audience, primarily targeting beginner Python developers who are keen to explore the world of web automation testing. If you are just starting your journey in Python and aspire to master web automation, this course offers a solid foundation. Additionally, automation testers looking to broaden their skill set, specifically in Playwright, will find this course invaluable. No prior knowledge is necessary, making it an accessible starting point for anyone interested in web automation and testing. A basic understanding of Python and HTML is recommended.
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