ericcarraway / codingbat-js

CodingBat problems and tests ported to JavaScript.

codingbat-js

==============

CodingBat (and similar) problems and tests ported to JavaScript.

http://ericcarraway.com/codingbat-js/

codingbat-js's Issues

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http://ericcarraway.com/codingbat-js/

rockPaperScissors + mocha & chai

File: rockPaperScissors.js

module.exports = function (a, b) {
    if (a === b) {
        return 0;
    }
    if ((a === 'rock' && b === 'scissors') ||
        (a === 'paper' && b === 'rock') ||
        (a === 'scissors' && b === 'paper')) {
        return 1;
    }
    return -1;
};

File: rockPaperScissors.spec.js

var rockPaperScissors = require('./rockPaperScissors.js');
var expect = require('chai').expect;

describe.only('rockPaperScissors', function () {
    it('should be a function', function () {
        expect(rockPaperScissors).to.be.a('function');
    });

    describe('player \'a\' winning', function () {
        it('should return 1 when receiving \'rock\', \'scissors\'', function () {
            expect(rockPaperScissors('rock', 'scissors')).to.equal(1);
        });

        it('should return 1 when receiving \'paper\', \'rock\'', function () {
            expect(rockPaperScissors('paper', 'rock')).to.equal(1);
        });

        it('should return 1 when receiving \'scissors\', \'paper\'', function () {
            expect(rockPaperScissors('scissors', 'paper')).to.equal(1);
        });
    });

    describe('player \'a\' losing', function () {
        it('should return -1 when receiving \'rock\', \'paper\'', function () {
            expect(rockPaperScissors('rock', 'paper')).to.equal(-1);
        });

        it('should return -1 when receiving \'paper\', \'scissors\'', function () {
            expect(rockPaperScissors('paper', 'scissors')).to.equal(-1);
        });

        it('should return -1 when receiving \'scissors\', \'rock\'', function () {
            expect(rockPaperScissors('scissors', 'rock')).to.equal(-1);
        });
    });

    describe('ties', function () {
        it('should return 0 when receiving \'rock\', \'rock\'', function () {
            expect(rockPaperScissors('rock', 'rock')).to.equal(0);
        });

        it('should return 0 when receiving \'paper\', \'paper\'', function () {
            expect(rockPaperScissors('paper', 'paper')).to.equal(0);
        });

        it('should return 0 when receiving \'scissors\', \'scissors\'', function () {
            expect(rockPaperScissors('scissors', 'scissors')).to.equal(0);
        });
    });
});