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Hands-On Reactive Programming with Clojure

Hands-On Reactive Programming with Clojure

By : Konrad Szydlo , Leonardo Borges
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Hands-On Reactive Programming with Clojure

Hands-On Reactive Programming with Clojure

By: Konrad Szydlo , Leonardo Borges

Overview of this book

Reactive Programming is central to many concurrent systems, and can help make the process of developing highly concurrent, event-driven, and asynchronous applications simpler and less error-prone. This book will allow you to explore Reactive Programming in Clojure 1.9 and help you get to grips with some of its new features such as transducers, reader conditionals, additional string functions, direct linking, and socket servers. Hands-On Reactive Programming with Clojure starts by introducing you to Functional Reactive Programming (FRP) and its formulations, as well as showing you how it inspired Compositional Event Systems (CES). It then guides you in understanding Reactive Programming as well as learning how to develop your ability to work with time-varying values thanks to examples of reactive applications implemented in different frameworks. You'll also gain insight into some interesting Reactive design patterns such as the simple component, circuit breaker, request-response, and multiple-master replication. Finally, the book introduces microservices-based architecture in Clojure and closes with examples of unit testing frameworks. By the end of the book, you will have gained all the knowledge you need to create applications using different Reactive Programming approaches.
Table of Contents (15 chapters)
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Summary

In this chapter, we explored testing in Clojure. First, we discussed the benefits of testing, and then we covered some different testing methodologies, such as load testing and integration testing.

Finally, we explored four Clojure unit testing frameworks. While each framework allows us to test our code, each does so in a different way. Each framework was designed with a particular use case in mind. While showing the testing frameworks in action, we explained why each one was created, and what situations to use it in.

Often, the decision of whether to use one framework or another is a matter of preferred testing style. We advise developers to try each framework out and decide which one suits them best.

In the next chapter, we will look at concurrency in Clojure.

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