Roy Osherove

The Art of Unit Testing, Third Edition updates an international bestseller to reflect modern development tools and practices. This expanded edition teaches you to write unit tests for async and observable code, as well as methods of faking functions, modules and refactorings. You'll explore test patterns and organization, working with legacy code, and even "untestable" code. The many tool-agnostic examples are presented in JavaScript, and are carefully designed so that they apply to code written in any language. about the technology Unit testing is a universally-adopted practice on dev teams of all sizes. Great developers will tell you that testing is as much a state of mind as a collection of tools and practices. The Art of Unit Testing, Third Edition takes you below the surface and understand how unit testing can transform the way you deliver and maintain software. Now with examples in JavaScript, this new edition has been updated to reflect the characteristics of a modern codebase, including async and modularized, distributed services. The practices and patterns you'll learn can also be easily applied to other languages, including C#, Java, and Python. about the book The Art of Unit Testing, Third Edition guides you step by step from your first simple unit tests to building complete test sets that are maintainable, readable, and trustworthy. Now with examples using JavaScript and Node, this expanded third edition teaches you to write unit tests for async and observable code, as well as methods of faking functions, modules and refactorings. You'll get to grips with complex subjects such as mocks and stubs, explore how to handle tricky legacy codebases, and save yourself time with tests that function for both frontend and backend applications. The Art of Unit Testing, Third Edition is an essential guide for any unit tester who wants to feel confident writing code that's easier to create, maintain, and adapt.

RETAIL SELLING POINTS A step-by-step guide to unit testing Easily create readable, maintainable, trustworthy tests Great for both novice and experienced unit testers AUDIENCE This book is written for .NET Developers and anyone else who wants to learn unit testing.

Are you an architect? Scrum Master? team leader? project manager? If you are any of these, you will find that leadership, done right, is a very tough job. This book deals with the hard parts. Not with tools, but with people. Here is the manifesto that drives this book: For us as team leaders, the goal and the way we measure our work is the overall growth in skills of self-organization and self-maintenance in each member of our team and the team as a whole. To that end: -We accept that the team's needs from us change continuously based on their skills for handling the current reality of work, so we embrace a continuously changing leadership style over a one-style-fits-all leadership approach. -We believe in challenging ourselves and our teams to always get better, so: - * We create slack time for the team to learn and be challenged. - * We embrace taking risks for our team over staying safe. - * We embrace fear and discomfort while learning new skills over keeping people within their comfort zone. - * We embrace experimentation as a constant practice over maintaining the status quo: - * With people - * With tools - * With processes - * With the environment -* We believe our core practice is leading people, not wielding machines, so: - * We embrace spending more time with our team than in meetings. - * We embrace treating software problems as people problems. - * We learn people skills and communication techniques. About the notes The second part of this book allows a peek into the minds of some of the best leaders, consultants, and managers as they give advice to a new team leader. Hear from Johanna Rothman, Kevlin Henney, Dan North, Uncle Bob Martin, and many others about the one thing they would like to teach you if you ever become a team leader, Scrum Master, project manager, or architect.