Jasmin testing,Angular,service method in a controller

Below the controller am trying to test

(function() {
'use strict';
angular
    .module('bsp.account.modals')
    .controller('ChangePasswordModal', ChangePasswordModal); 
function ChangePasswordModal($modalInstance, accountModalsService) {

    var vm = this;
    vm.title = 'ChangePasswordModal';

    vm.pwObj = {
        currentPassword: '',
        newPassword1: '',
        newPassword2: ''
    };

    vm.pwObjError = {};

    vm.fields = [{
        label: 'Current Password',
        id: 'currentPassword'
    }, {
        label: 'New Password',
        id: 'newPassword1'
    }, {
        label: 'Confirm Password',
        id: 'newPassword2'
    }];

vm.submitPasswordChange = function() {
accountModalsService.submitPasswordChange(vm.pwObj, vm.pwObjError,$modalInstance);
};
 vm.cancel = cancel; 
    function cancel() {
        $modalInstance.dismiss('cancel');
    }
    }
})();

Want to test the method vm.submitPasswordchange = function(){}; and vm.cancel(){$modalInstance.dismiss('cancel');}

my test case written in Jasmin:

` describe("change-Password-Controller", function() { var controller = null, scope, testmodalInstance, testaccountModalsService;

beforeEach(module('bsp.account.modals'));
//dummy test
it("is a dummy test", inject(function() {
    expect(true).toBeTruthy();
}));


beforeEach(inject(function($rootScope, $controller) {
    scope = $rootScope.$new();
    testaccountModalsService = {
        submitPasswordChange: function() {}
    };
    controller = $controller("ChangePasswordModal", {
        $scope: scope,
        $modalInstance: testmodalInstance,
        accountModalsService: testaccountModalsService
    });
    scope.vm = controller;

}));


describe("title", function() {
    it("title should be -ChangePasswordModal", function() {
        expect(controller.title).toBe("ChangePasswordModal");
    });
});

describe("submitPasswordChange", function() {

    it("should check Passwordchange", function() {

    });


});

});

It would be great to get your valuable suggestions .please ignore my ignorance being new to this framework