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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 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
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
For this challenge I have used 2 classes and 1 module:
- Airport class
- it defines an airport instance
- it initialize with a
@landedinstance variable set to an empty list to manage the state of the system: landing and departing planes - it has a
@capacityinstance variable set toDEFAULT_CAPACITYconstant unless otherwise specified withAirport.new(capacity) - it has a
landmethod and adeparturemethod to manage landing and take off of planes - it has a
fullmethod to check if@landedhas reach maximum@capacity, they add or remove planes from@landedlist
- Plane class
- it defines a plane instance
- it simply create an object with a instance variable
@flyingset to true - to manage edge cases the instance variable
@flyingof Plane class is set tofalseevery time the plane has landed and set totruewhen take off.
- Weather module
- it has a
forecastmethod - it randomly return
"sunny"(80% chance) or"stormy"(20% chance)
- it has a
I have used TDD approach by writing Rspec test for each functionality by following the RED-GREEN-REFACTOR process together with feature testing on irb