Fox Rover

A simple Node.js showcase of unit testing with Mocha / logics and programming domain with Js functions/classes features etc.

Running the code

git clone https://github.com/afa7789/FoxRover fox-rover

cd fox-rover

node main.js

or

node main.js file

check test files on tests folder.

Problem

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).

Input

The first line of input is the upper-right coordinates of the plateau, the lower-left coordinates are assumed to be 0,0. The rest of the input is information pertaining to the rovers that have been deployed. Each rover has two lines of input. The first line gives the rover's position, and the second line is a series of instructions telling the rover how to explore the plateau. The position is made up of two integers and a letter separated by spaces, corresponding to the x and y co-ordinates and the rover's orientation. Each rover will be finished sequentially, which means that the second rover won't start to move until the first one has finished moving.

Output

The output for each rover should be its final co-ordinates and heading.

Examples

Input

5 5

1 2 N

LMLMLMLMM

3 3 E

MMRMMRMRRM

Expected Output

1 3 N

5 1 E

Testing

I'm using Mocha to run it is:

./node_modules/mocha/bin/mocha

or

npm test

Whole Testing

I'm doing a little more complex testing in the second_test.js i call the node main.js with the tests_cases and getting the exit code of the node. This works fine as a test because i've covered the erros in the programn to be exited with error code, by doing so i can use this to test the application as a whole.

Instead of testing small pieces i'm testing the entry and it's error code output

Unit Testing

This will test smaller piece of codes to check if anyone broke a function/whatever it will be stored in the first_test.js, it's mainly to show the domain over assert/unit test knowledge

Test Output

> fox-rover@1.0.0 test /fox-rover
> ./node_modules/mocha/bin/mocha



  Test LogicState Validation
    #Sucessfull Validation
      ✔ should return true
    #Failing Validation
      ✔ fails validation for wrong width
      ✔ fails validation for wrong height
      ✔ fails validation for wrong position x
      ✔ fails validation for wrong position y
      ✔ fails validation for wrong cardinal

  Test CommandRead
    #Succesfull Commands
1 3 N
5 1 E
returned ls { status: true }
      ✔ rover commands succeded
    #Failing Commands
3 4 N
5 1 E
      ✔ fails commands for wrong input
1 10 N
5 1 E
      ✔ fails commands for out of bounds

  Sucessfull TestCases
    ✔ normal case exceds test (57ms)

  Failure TestCases
    ✔ out_of_bounds fail in test (54ms)
    ✔ validation fail in test (55ms)
    ✔ validation fail in test (57ms)


  13 passing (235ms)