How can I test a angular services that use current $location to get the current lo get the current host using jasmine

I created a test with jasmine that check is the services that is giving me the endpoint of the API is working. I am getting the default value because the application in unit test in not running in localhost. So how can I mock that feature in mu unit test.

Here is my unit test:

describe("EndpointService->", getApiEndPoint);

function getApiEndPoint() {

    beforeEach(function () {
        module('app');
    });

    it("GetApiEndpointUriBaseOnCurrentHost", inject(function (endpointService) {
        //Arrange
        var expectedUriInLocalhostEnviroment = 'not recognized client host';

        //Act
        var uriEndPoint = endpointService.getApiEndpoint();
        //Assert 
        expect(uriEndPoint).toMatch(expectedUriInLocalhostEnviroment);

    }));
    };

This is my service. It is using $location to get the local host:

(function () {
    'use strict'
    var app = angular.module('app');
    app.factory('endpointService', endpointService);

    function endpointService($location) {
        return {
            getApiEndpoint: function () {
                var endpoint = '';
                var host = $location.host();
                switch ($location.host()) {
                    case 'localhost': endpoint = 'http://localhost:59987/'; break;
                    case 'projectDev': endpoint = 'http://project.com'; break;
                    default: endpoint = 'not recognized client host'; 
                }
                return endpoint;
            }
        }
    };

})();