Unit tests for lesson 2

strings.js

/**
 * This is module to test.
 */
module.exports = {
    camelCase: function(string) {
        return string.replace(/-[a-z]/g, function(match) {
            return match[1].toUpperCase() + match.slice(2);
        });
    },
    dashSeparated: function(string) {
        // Added [0-9]+ regex to add dash before numbers.
        return string.replace(/[A-Z]|[0-9]+/g, function(match) {
            return '-' + match.toLowerCase();
        });
    }
};

stringsTest.js

var strings = require('./strings');
var assert = require('assert');

describe('strings module', function() {
    it('should camelCase string with onde dash correctly', function() {
        var dashed = 'sample-string';
        var expected = 'sampleString';

        var camel = strings.camelCase(dashed);

        assert.equal(camel, expected);
    });

    it('should dash separate string with one camelCased character', function() {
        var camel = 'sampleString';
        var expected = 'sample-string';

        var dashed = strings.dashSeparated(camel);

        assert.equal(dashed, expected);
    });

    it('should dash separate string with many camelCased character', function() {
        var camel = 'sampleStringWithManyCamelCases';
        var expected = 'sample-string-with-many-camel-cases';

        var dashed = strings.dashSeparated(camel);

        assert.equal(dashed, expected);
    });

    it('should dash separate camel cased string with numbers', function() {
        var camel = 'sampleStringWithNumbers1234';
        var expected = 'sample-string-with-numbers-1234';

        var dashed = strings.dashSeparated(camel);

        assert.equal(dashed, expected);
    });

    it('should dash separate camel cased string with many numbers', function() {
        var camel = 'sampleStringWith9876ManyNumbers1234';
        var expected = 'sample-string-with-9876-many-numbers-1234';

        var dashed = strings.dashSeparated(camel);

        assert.equal(dashed, expected);
    });
});