I find it's a very useful technique to have packages and tests in a single file while developing...

BEGIN {
package Foo;
...
}

use Test::More 'no_plan';

#use_ok 'Foo';
...

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In reply to Re: multiple "sub" packages in 1 file: possible? how? by FunkyMonk
in thread multiple "sub" packages in 1 file: possible? how? by perl-diddler

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