Angular unit tests exercise

Angular unit tests exercise. Implement the failing tests

HTML

<script src="http://jasmine.github.io/1.3/lib/jasmine.js"></script>
<script src="http://jasmine.github.io/1.3/lib/jasmine-html.js"></script>
<link rel="stylesheet" href="http://jasmine.github.io/1.3/lib/jasmine.css">
<script src="http://code.angularjs.org/1.2.9/angular.js"></script>
<script src="http://code.angularjs.org/1.2.9/angular-mocks.js"></script>

JavaScript

//--- CODE --------------------------
var myApp = angular.module('myApp', []);
myApp.service('mySrv', [function () {
    // Converts name from camelCase to snake-case
    this.camelToSnakeCase = function (camelCase) {
        return camelCase.replace(/[A-Z]/g, function (match, pos) {
            return (pos > 0 ? '-' : '') + match.toLowerCase();
        });
    }
}]);

myApp.controller('myCtrl', ['$scope', 'mySrv', function ($scope, mySrv) {
    $scope.name = 'angular-js';
    $scope.setName = function (name) {
        $scope.name = mySrv.camelToSnakeCase(name);
    };
}]);

myApp.directive('myDrtv', function () {
    return {
        restrict: 'E',
        scope: {
            name: '='
        },
        // Better to externalize to templateUrl, this is for demonstration sake
        template: '<div>Hello {{name}}</div>',
        replace: false
    };
}); 





// ---SPECS-------------------------

describe('mySrv', function () {
    var service;
    beforeEach(function () {
        this.fail(Error('Setup myApp injections and inject service'));        
    });

    it('transforms camelCase to snake-case', function () {
        this.fail(Error('implement me!'));
    });

    it('retains does not change snake-case input', function () {
        this.fail(Error('implement me!'));
    });

    it('does not add a dash to a work starting with upper case char', function () {
        this.fail(Error('implement me!'));
    });
});

describe('myCtrl', function () {

    var controller,
    mySrvSpy,
    scope;
    beforeEach(function () {
        this.fail(Error('Setup myApp injections, spy service dependency and create controller instance'));
    });

    it('sets a deafult name', function () {
        this.fail(Error('implement me!'));
    });
    it('updates the name with snake-case', function () {
        this.fail(Error('implement me!'));
    });
});

describe('myDrtv', function () {

    var element,
    name = 'Homer';
    beforeEach(function () {
       ...