public void AssignEntities()
        {
            testOrgService.ExecutionResponse = new ExecuteMultipleResponse();

            MockRetryExecutor.Setup(a => a.Execute(It.IsAny <Func <ExecuteMultipleResponse> >()))
            .Returns(requestResult);

            FluentActions.Invoking(() => systemUnderTest.AssignEntities(entities))
            .Should()
            .NotThrow();

            MockRetryExecutor.VerifyAll();
        }