A squad of robotic rovers are to be landed by NASA on a plateau on Mars. This plateau, which is curiously rectangular, must be navigated by the rovers so that their on-board cameras can get a complete view of the surrounding terrain to send back to Earth. A rover's position and location is represented by a combination of x and y co-ordinates and a letter representing one of the four cardinal compass points. The plateau is divided up into a grid to simplify navigation. An example position might be 0, 0, N, which means the rover is in the bottom left corner and facing North. In order to control a rover, NASA sends a simple string of letters. The possible letters are 'L', 'R' and 'M'. 'L' and 'R' makes the rover spin 90 degrees left or right respectively, without moving from
its current spot. 'M' means move forward one grid point, and maintain the same heading. Assume that the square directly North from (x, y) is (x, y+1).
We are assessing a number of things, including the design aspect of
your solution, code hygiene, readability and code structure (how easy
it is for another programmer to grasp what your code does),
reliability and robustness (are errors properly handled?), but mostly
we are looking for good coding practices and your object oriented
programming skills. We'll also look for automated tests.
You may not use any external libraries to solve this problem, but you
may use external libraries or tools for building or testing purposes.
Specifically, you may use unit testing libraries or build tools
available for your chosen language (for example, JUnit). Please also
include a brief explanation of your design and assumptions along with
your code and commit your changes in a way that will help us
understand your design and coding decisions, as well as how you came
up with the final solution.
There must be a way to supply the application with the input data via
text file. The application must run. You should provide sufficient
evidence that your solution is complete by, as a minimum, indicating
that it works correctly against the supplied test data. Please note
that you will be assessed on your judgment as well as your execution.
Develop an api that moves a Rover around an Plateau.
- The input expected is a list of commands.
You can run
cd ~/you-name/TEST-ROVER
yarn install
You can run
cd ~/you-name/TEST-ROVER
yarn test
yarn coverage
You can run
cd ~/you-name/TEST-ROVER
yarn run dev