exercism fetch php robot-simulator

Robot Simulator

Write a robot simulator.

A robot factory's test facility needs a program to verify robot movements.

The robots have three possible movements:

Robots are placed on a hypothetical infinite grid, facing a particular direction (north, east, south, or west) at a set of {x,y} coordinates, e.g., {3,8}, with coordinates increasing to the north and east.

The robot then receives a number of instructions, at which point the testing facility verifies the robot's new position, and in which direction it is pointing.

Running the tests

  1. Go to the root of your PHP exercise directory, which is <EXERCISM_WORKSPACE>/php. To find the Exercism workspace run

    % exercism debug | grep Workspace
  2. Get PHPUnit if you don't have it already.

    % wget --no-check-certificate https://phar.phpunit.de/phpunit.phar
    % chmod +x phpunit.phar
  3. Execute the tests:

    % ./phpunit.phar robot-simulator/robot-simulator_test.php


Inspired by an interview question at a famous company.

Submitting Incomplete Solutions

It's possible to submit an incomplete solution so you can see how others have completed the exercise.