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(); }