Testing angular filters with Jasmine

Testing an Angular filters with Jasmine

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', []);

/**
 * A filter used to transfer value to Boolean.
 * If the input value is equal to 'f' / 0 / '0' / 'false' / 'no'/ 'n' or an empty array it returns false, otherwise it returns true.
 */
myApp.filter('bool', function () {
	return function (value) {
        if (value && value.length !== 0) {
            var v = angular.lowercase('' + value);
            value = !(v === 'f' || v === '0' || v === 'false' || v === 'no' || v === 'n' || v === '[]');
        } else {
            value = false;
        }
        return value;
	};
});

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

describe('myApp', function () {
    beforeEach(function () {
        module('myApp');
    });
    it('has a bool filter', inject(function($filter) {
        expect($filter('bool')).not.toBeNull();
    }));
    it("should return true if the input is not equal to 'f' / 0 / '0' / 'false' / 'no'/ 'n' or an empty array ", inject(function (boolFilter) {
        expect(boolFilter(true)).toBeTruthy();
        expect(boolFilter('any string')).toBeTruthy();
        expect(boolFilter(1)).toBeTruthy();
        expect(boolFilter([1234])).toBeTruthy();
        expect(boolFilter({})).toBeTruthy();
    }));

    it("should return false if the input is equal to 'f' / 0 / '0' / 'false' / 'no'/ 'n' or an empty array ", inject(function (boolFilter) {
        expect(boolFilter(false)).toBeFalsy();
        expect(boolFilter('false')).toBeFalsy();
        expect(boolFilter('f')).toBeFalsy();
        expect(boolFilter(0)).toBeFalsy();
        expect(boolFilter('n')).toBeFalsy();
        expect(boolFilter([])).toBeFalsy();
    }));
});

// --- Runner -------------------------
(function () {
    var jasmineEnv = jasmine.getEnv();
    jasmineEnv.updateInterval = 1000;

    var htmlReporter = new jasmine.HtmlReporter();

    jasmineEnv.addReporter(htmlReporter);

    jasmineEnv.specFilter = function (spec) {
        return...