public void CreateRole_ReturnsViewResult()
{
var mockRoleManager = IdentityHelpers.MockRoleManager <IdentityRole>();
var mockUserManager = IdentityHelpers.MockUserManager <IdentityUser>();
var controller = new RolesController(mockRoleManager.Object, mockUserManager.Object);
var result = controller.Create();
var viewResult = Assert.IsType <ViewResult>(result);
Assert.IsAssignableFrom <CreateRoleViewModel>(viewResult.ViewData.Model);
}