I have created this project to demo TDD for use in my blog ryantapl.in, if you wish to refer to some guidelines when working on this challenge please take a look at my blog (once complete). If you have any questions or improvemements feelfree to contact me directly on github or via the specified contact details on my blog.
This airport challenge was picked up from Makers Academy GitHub. I do not take any credit for the production of this challenge; if you have any questions about the requirements I can answer to the best of my ability but you may need to go to the Makers Academy repository for clarification.
I have changed the project to have use a Maven and Java implementation. The original repository has been set up for ruby. A blank version of this challenge will be available under the default_repo branch. You can fork this repo, and clone to your local machine.
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We have a request from a client to write the software to control the flow of planes at an airport. The planes can land and take off provided that the weather is sunny. Occasionally it may be stormy, in which case no planes can land or take off. Here are the user stories that we worked out in collaboration with the client:
As an air traffic controller
So I can get passengers to a destination
I want to instruct a plane to land at an airport
As an air traffic controller
So I can get passengers on the way to their destination
I want to instruct a plane to take off from an airport and confirm that it is no longer in the airport
As an air traffic controller
To ensure safety
I want to prevent takeoff when weather is stormy
As an air traffic controller
To ensure safety
I want to prevent landing when weather is stormy
As an air traffic controller
To ensure safety
I want to prevent landing when the airport is full
As the system designer
So that the software can be used for many different airports
I would like a default airport capacity that can be overridden as appropriate
Your task is to test drive the creation of a set of classes/modules to satisfy all the above user stories. You will need to use a random number generator to set the weather (it is normally sunny but on rare occasions it may be stormy). In your tests, you'll need to use a stub to override random weather to ensure consistent test behaviour.
Your code should defend against edge cases such as inconsistent states of the system ensuring that planes can only take off from airports they are in; planes that are already flying cannot takes off and/or be in an airport; planes that are landed cannot land again and must be in an airport, etc.