Programming Kotlin

The Code Under Test

To practice writing automated tests for Kotlin code, we’ll pick a sample application. We’ll create an asynchronous program that will print, in sorted order of name, the status of different airports. The program will fetch the necessary data from a remote web service, like we saw in Chapter 16, ​Asynchronous Programming​. The overall design of the application that we’ll create is shown in the following figure.

The AirportApp.kt file will hold the main() function to invoke a top-level function, written in the AirportStatus.kt file, within a com.agiledeveloper.airportstatus package. That function will use an Airport data class ...