public void DeleteRole_ShouldDeleteARole()
{
// arrange
var controller = new MembershipController();
var roleIdToDelete = controller.GetRoles().Where(r => r.Name == "測試角色AAA").Select(r => r.Id).First();
// act
var result = controller.DeleteRole(roleIdToDelete) as OkNegotiatedContentResult <RoleViewModel>;
// assert
Assert.IsNotNull(result);
Assert.IsNotNull(result.Content);
Assert.IsTrue(result.Content.Id > 0);
}