public void TestAddAndRemoveRole()
{
Task.Run(async() =>
{
var role1 = new NCMBRole();
role1.Set("roleName", "role3");
await role1.Save();
Assert.NotNull(role1.Get("objectId"));
var role2 = new NCMBRole();
role2.Set("roleName", "role4");
await role2.Save();
Assert.NotNull(role2.Get("objectId"));
var role3 = new NCMBRole();
role3.Set("roleName", "role6");
await role3.Save();
Assert.NotNull(role3.Get("objectId"));
await role1.AddRole(role2).AddRole(role3).Save();
await role1.Fetch();
var roles = await role1.FetchRole();
Assert.AreEqual(roles.Length, 2);
// Assert.AreEqual(role3.Get("roleName").ToString(), roles[0].Get("roleName").ToString());
role1.ClearOperation();
await role1.RemoveRole(role2).Save();
await role1.Fetch();
var roles2 = await role1.FetchRole();
Assert.AreEqual(roles2.Length, 1);
await role1.Delete();
await role2.Delete();
await role3.Delete();
}).GetAwaiter().GetResult();
}