/fun_secret_santa

Primary LanguagePHP

PHP test for senior developers

This is a test for senior PHP backend developers.

Estimated time: 2 hours.

Once you finnish the exercise you should send the full Git repository by email. You may use a Git bundle.

Getting started

Install all dependencies

composer install

Prerequisites

  • PHP 7.0 or higher
  • composer
  • Docker (optional)

Exercise

Create a CLI application to generate lists to play Secret Santa.

  • Using TDD is a plus
  • A nice Git history is a plus

What is Secret Santa

Secret Santa is a Western Christmas tradition in which members of a group or community are randomly assigned a player to whom they give a gift. The identity of the gift giver is a secret not to be revealed.

Input format

  • The application must read the list of players from a text file.
  • Each player must be in one line.
  • The text file can't have repeated players.
  • The file with players is located at /players.txt

Assignations restrictions

  • Each player must have one player to give the gift.
  • Each player must receive a gift.
  • You can not be assigned to yourself.
  • The assignation must be random.

If any of this restrictions can not be satisfied the application should throw an Exception.

Contracts

The application will need to interact with other systems. This means that some components of the application need to adhere some already existing contracts (see /src/Contracts).

  • Input: Reads the file with the players
  • Output: Prints the output on screen (standard output)
  • Random: Generates random numbers
  • Game: The game itself

This contracts can not be modified.

Sample input / output

Input (from file)

Alpha
Charlie
Bravo
Foxtrot

Output (on screen)

Alpha -> Bravo
Charlie -> Alpha
Foxtrot -> Charlie
Bravo -> Foxtrot