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From "Sunitha Kambhampati (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-216) expand largeCodeGen.java test
Date Fri, 05 May 2006 21:43:28 GMT
    [ http://issues.apache.org/jira/browse/DERBY-216?page=comments#action_12378154 ] 

Sunitha Kambhampati commented on DERBY-216:
-------------------------------------------

I remember the last time I ran the largeData with ibm142 a couple months ago, this suite passed
OK.  Now, I ran the largeData suite with the ibm 1.5 jvm  and the largeCodeGen test in embedded
mode  fails on  linux 2.6 kernel, rhel4.   

There is some discussion on the list about this test failing with client but passes with embedded.
 I see in the earlier comment - Kathey mentioned that the failed cases (?) (i think )  varies
for different jvm to jvm, run to run.   

--  Has this test ever run successfully before ?   
--  Is it expected that the test output will vary ? if so, then   how do we ensure no regression
has happened -  is there some way to know that. ?   Should this test be enabled as part of
largeData ?  

Thanks. 

> expand largeCodeGen.java test
> -----------------------------
>
>          Key: DERBY-216
>          URL: http://issues.apache.org/jira/browse/DERBY-216
>      Project: Derby
>         Type: Sub-task

>   Components: Test
>     Reporter: Kathey Marsden

>
> the largeCodeGen test needs to be expanded to include other cases that genreate large
amounts of byte code. 
> For example:
>      large in clause
>      large insert statement that inserts many rows
>      sql statements with large constant values 
> It is best if the verious tests just use a variable that can be bumped higher and higher
for testing and if individual cases are isolated.
> Possible approaches, think of ways to make sql statements really big that will take different
code paths.
> Look in the code for instances of statementNumHitLimit and create cases that pass through
that code.  Those cases may pass but the hope is to get rid of these calls in favor of splitting
 the code in a centralized way, so add the tests to largeCodeGen even if they don't fail.
>      

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