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From Bertrand Dechoux <>
Subject Re: Testing OrcStructs with MrUnit
Date Sat, 17 Jan 2015 22:56:24 GMT
Hi Carl,

I am not familiar with the OrcStruct but it might help on the MRUnit side.
What do you want to test, only that write() is never called with a
OrcStruct instance?
MRUnit should not capture the exception and your test should fail. Isn't it
the case?

The first question seems unrelated to the use of OrcNewInputFormat... But
if it doesn't work, at worst case, you could instantiate your object in
plain java.

Hope that it helps,


Bertrand Dechoux

On Thu, Jan 8, 2015 at 11:25 PM, Carl Butt <> wrote:

>  Hi there,
>  The OrcStruct object from Hive implements the Writable interface, but
> throws an UnsupportedOperationException in the write() method and expects
> the object to be written out some other way. Is there any way to test
> objects with this sort of behavior using MRUnit?
>  Or has anyone had any success testing jobs that use the
> OrcNewInputFormat some other way?
>  Cheers,
> Carl
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