Accessing the namespace of a class's grandparent

zaven has asked for the wisdom of the Perl Monks concerning the following question:

Hi folks. This is a basic OO Perl question, but nonetheless it currently has me stumped.

I have the following relationship between some classes:

Foo::TestScript.pm:
    use base qw(Test::Class);
    use Test::More;           # both CPAN modules

myTest.pm:
    use base qw(Foo::TestScript);
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So myTest ISA Foo::TestScript and Foo::TestScript is using Test::More. Now, I expect to be able to call methods from Test::More (for example, is() and isnt()) from myTest.pm. But when I do I get an error that &myTest::is() is undefined.

If I "use Test::More" directly from myTest.pm, I can call the methods just fine. However, I would prefer to inherit this functionality via the parent class, TestScript.

So what am I missing about subclassing here? Much thanks.

-zaven

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Re: Accessing the namespace of a class's grandparent by rhesa (Vicar) on Dec 17, 2006 at 02:15 UTC
The Test::More functions are not object methods, so you won't be able to inherit them. Since `Test::More` only exports functions, you'll have to `use` it in all your subclasses. See Test::Class, section TEST CLASSES, for confirmation.	[reply] [d/l] [select]