My CPAN module takes an IP4 address as its operand, and checks its operand as follows:
1) if the scalar is 4 bytes long, it's taken as a packed 32-bit binary value,
2) otherwise it is syntax checked as a "dotted quad", as in '1.2.3.4'.

An operand that fails these tests results in a return value of '**'.
An operand that passes but is not in the database returns '??'.
Other operands return country codes, like 'US'.

The tests for the module include these:
is ($ipw->getcc(0), '**', "getcc(0) should return **");
is ($ipw->getcc(999), '**', "getcc(999) should return **");
# string 1000 is equivalent to '49.48.48.48' which is not covered
is ($ipw->getcc(1000), '??', "getcc(1000) should return ??");
# string 9999 is equivalent to '57.57.57.57'
is ($ipw->getcc(9999), 'EU', "getcc(9999) should return EU");
is ($ipw->getcc(10000), '**', "getcc(10000) should return **");

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These tests assume that Perl stores the constants 0, 999, 1000, 9999, and 10000 as strings. They pass on all CPAN testers' systems except one (so far).

On that system all of the above tests return '??'. Click here to see the FAIL report.

The only explanation that I can think of is that the numeric constants above are stored in 32-bit form.

Is it possible to build or condition a perl system to do that?
If so, should such a system be used for CPAN testing?

This problem can be worked around by executing alternate tests that use '0' ... '10000' if length(0)>1, but it would be nice if someone could comment on this diagnosis first.

Thanks,
cmac

In reply to CPAN test problem by cmac

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