Order cannot be returned by toString()

[Gabriel]

Hi all,

I am mocking an object using an interface (OrderService):

private OrderService mockService = mock(OrderService.class);

When I try to use when(), I get this error:

Order cannot be returned by toString()

Here is how I set it up:

when(mockService.createOrder(inputOrder)).thenReturn(outputOrder);

I don't understand how/what this error means. The Order class uses the Apache ToStringBuilder, EqualsBuilder & HashCodeBuilder. I use the relection based methods, could it be that Mockito doesn't like that? I don't see what else it could be but I have other tests that use this and other classes that use the same builder code. I don't see why it would be calling toString() on anything either. inputOrder & outputOrder are instances of the real objects btw.

I am using Mockito 1.8.5.

Thanks,
Gabriel

[Brice Dutheil]

Hi,

The small stub line you provided looks correct, could you share more code on the context ?

-- Brice

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[David Wallace]

Hi Gabriel,
Thanks for posting.

I think you'll need to show us a little more of your code before we can really help you.  Can you attach both the OrderService class and your test code to another message?

Kind regards,
David Wallace.

[Gabriel Rossetti]

Hi David & Brice,

sure, I attached shortened versions of the relevant classes.

Thanks,
Gabriel


________________________________
From: moc...@googlegroups.com [moc...@googlegroups.com] on behalf of David Wallace [dmwall...@gmail.com]
Sent: Friday, August 24, 2012 10:44 AM
To: moc...@googlegroups.com
Subject: Re: [mockito] Order cannot be returned by toString()

Hi Gabriel,
Thanks for posting.

I think you'll need to show us a little more of your code before we can really help you. Can you attach both the OrderService class and your test code to another message?

Kind regards,
David Wallace.

On Fri, Aug 24, 2012 at 8:40 PM, Gabriel <gabriel....@trafigura.com<mailto:gabriel....@trafigura.com>> wrote:
Hi all,

I am mocking an object using an interface (OrderService):

private OrderService mockService = mock(OrderService.class);

When I try to use when(), I get this error:

Order cannot be returned by toString()

Here is how I set it up:

when(mockService.createOrder(inputOrder)).thenReturn(outputOrder);

I don't understand how/what this error means. The Order class uses the Apache ToStringBuilder, EqualsBuilder & HashCodeBuilder. I use the relection based methods, could it be that Mockito doesn't like that? I don't see what else it could be but I have other tests that use this and other classes that use the same builder code. I don't see why it would be calling toString() on anything either. inputOrder & outputOrder are instances of the real objects btw.

I am using Mockito 1.8.5.

Thanks,
Gabriel


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[Gabriel Rossetti]

I didn't realize that I was using a rather old version of Mockito, I upgraded to 1.9.0 and this issue went away. Sorry, I should have checked that first, I was sure I had been using the latest version for some reason.

Thanks,
Gabriel

[Brice Dutheil]

OK great ;)

Hoppy mocking then.

Cheers,

-- Brice Dutheil