[Pig-user] pigunit - registerScript called twice with assertOutput?

On Wed, Jun 29, 2011 at 12:09 PM, Jennie Cochran-Chinn wrote:

I was wondering why assertOutput in PigTest calls registerScript
twice? Once in assertOutput and then again in getAlias? I added a mv
to the end of my pig script and its getting called each time
registerScript is called and thus failing the second time bc the
source directory is no longer there.

Thanks,
Jennie

On Fri, Jul 8, 2011 at 4:38 PM, Romain Rigaux wrote:
Hi,

This double parsing is there because I did not find an easy way to modify
the Pig plan after the first parsing.

So PigUnit parses it one time, then modifies the Pig script and then
reparses it while adding some modifications like:

- modify an alias (e.g. change A = LOAD 'txt' --> A = LOAD 'anotherdata')
- guess a schema
- remind what it the last alias...

I could post a patch where PigUnit drops all the mv (or any other shell
command) by default if you want? Maybe the plan is easier to modify now too.

Romain

On Wed, Jun 29, 2011 at 12:09 PM, Jennie Cochran-Chinn <
[email protected]> wrote:

On Mon, Jul 11, 2011 at 9:45 AM, Jennie Cochran-Chinn wrote:

Hey Romain,

Thanks for the reply. Instead of assertOutput directly, I'm using
just the second line of it for now:
Assert.assertEquals(StringUtils.join(tupleOutput, "\n"),
StringUtils.join(pigTest.getAlias(alias), "\n"));

- it seems to work. Any gotchas I should be looking out for that you
can think of though?

Thanks,
Jennie