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Programming Kotlin

You're reading from   Programming Kotlin Get to grips quickly with the best Java alternative

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Product type Paperback
Published in Jan 2017
Publisher Packt
ISBN-13 9781787126367
Length 420 pages
Edition 1st Edition
Languages
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Authors (2):
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Stefan Bocutiu Stefan Bocutiu
Author Profile Icon Stefan Bocutiu
Stefan Bocutiu
Stephen Samuel Stephen Samuel
Author Profile Icon Stephen Samuel
Stephen Samuel
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Toc

Table of Contents (14) Chapters Close

Preface 1. Getting Started with Kotlin FREE CHAPTER 2. Kotlin Basics 3. Object-Oriented Programming in Kotlin 4. Functions in Kotlin 5. Higher Order Functions and Functional Programming 6. Properties 7. Null Safety, Reflection, and Annotations 8. Generics 9. Data Classes 10. Collections 11. Testing in Kotlin 12. Microservices with Kotlin 13. Concurrency

Project config

Sometimes you may wish to execute some code before any tests are run at all or after all the tests are completed (whether successful or not). This can be achieved through the use of the ProjectConfig abstract class. To use this, simply create an object that will extend from this abstract class and ensure it is on the class path. Then, KotlinTest will automatically find it and invoke it:

    object MyProjectConfig : ProjectConfig() { 
      var server: HttpServer? = null 
      override fun beforeAll() { 
        val addr = InetSocketAddress(8080) 
        val server = HttpServer.create(addr, 0) 
        server.executor = Executors.newCachedThreadPool() 
        server.start() 
        println("Server is listening on port 8080") 
      } 
      override fun afterAll() { 
        server!!.stop(0) 
      } 
    } 

In this case, we've made a ProjectConfig instance that creates an embedded HTTP server so that all the tests can use this server without the need to...

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