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Mastering Elixir

You're reading from   Mastering Elixir Build and scale concurrent, distributed, and fault-tolerant applications

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Product type Paperback
Published in Jul 2018
Publisher Packt
ISBN-13 9781788472678
Length 574 pages
Edition 1st Edition
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Authors (2):
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André Albuquerque André Albuquerque
Author Profile Icon André Albuquerque
André Albuquerque
Daniel Caixinha Daniel Caixinha
Author Profile Icon Daniel Caixinha
Daniel Caixinha
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Table of Contents (13) Chapters Close

Preface 1. Preparing for the Journey Ahead 2. Innards of an Elixir Project FREE CHAPTER 3. Processes – The Bedrock of Concurrency and Fault Tolerance 4. Powered by Erlang/OTP 5. Demand-Driven Processing 6. Metaprogramming – Code That Writes Itself 7. Persisting Data Using Ecto 8. Phoenix – A Flying Web Framework 9. Finding Zen through Testing 10. Deploying to the Cloud 11. Keeping an Eye on Your Processes 12. Other Books You May Enjoy

Property-based testing


We will conclude this chapter by talking about an exciting new way of testing: property-based testing. We say new because this type of testing has been used for a long time in the Erlang and Haskell communities (and possibly others), and is now making its way into the Elixir community. At the time of this writing, there are strong indications that property-based testing will be part of the core of Elixir, supposedly shipping with Elixir in version 1.7. Particularly, the library that we'll be using in our examples later on (stream_data) will be merged to Elixir itself. It's still unclear how this will be done, and if the API of the library will change. Nevertheless, by reading this and checking out the examples, you'll already be capable of entering this new way of testing, even if in the future things are done differently.

 

Before moving on to the examples, we need to discuss the purpose and characteristics of property-based tests. Contrary to unit tests where we, the...

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