[Fuego] Release testing update - variable precedence bug found

Tim.Bird at sony.com Tim.Bird at sony.com
Sun Dec 16 05:02:53 UTC 2018

> -----Original Message-----
> From: Tim.Bird at sony.com
> Hi all,
> I've been working on documentation and release testing for the Fuego 1.4
> release.
> One major new feature in this release is dynamic variables, that can be used
> on
> the ftc command line for scripted control of test variations.
> I wanted to document this feature, and test it, to make sure it's working as
> expected, and I found a bug.
> I made the new test Functional.fuego_test_variables to test the precedence
> of test variables that are obtained from different places in the Fuego system.
> It shows that dynamic variables sometimes don't override spec variables,
> although they are supposed to always.
> The problem seems to be that the spec.json allows for two variables of
> the same name with different case.   But these collide when the overlay
> generator converts them both to upper-case.  See testcase 24 in
> fuego_test_variables.
> (The spec has "var_24", and I specified "VAR_24" as a dynamic variable, and
> they
> are both present, with different values, in the generated spec.json and
> resulting prolog.sh.)
> Either the overlay generator of the dynamic variable spec.json generator
> needs to be modified to avoid this issue.
> I'll work on a fix for this bug, hopefully over the weekend, but probably by
> early next week.

OK - I coded up a fix for the bug.  Please see commit 
1d71484 core: make dynamic vars override spec vars, case-insensitively
in the master branch.

 -- Tim

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