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The decision between test and production should be made when creating your database handle. I suggest that you create one central subroutine that creates the database connection, and you overwrite the database name in your test scripts:

package My::DB; use strict; use DBI; use vars qw( $dbname ); $dbname = 'dbi:mysql:production_db'; { my $dbh; sub dbh { $dbh ||= DBI->new($dbname); $dbh; }; sub disconnect { $dbh->disconnect if $dbh; }; }; package main; use My::DB; my $dbh = My::DB::dbh; # ... do stuff

and in your test program(s) :

use strict; use My::DB; { no warnings 'redefine'; $My::DB::dbname = 'dbi:mysql:test_db'; }; my $dbh = My::DB::dbh; ...

That way, you can easily change out the database connection to use, and you also can easily simulate failure conditions like the database being unavailable etc.

I would also consider using DBD::SQLite as database for some of the tests, as restoring a DBD::SQLite database is simply a matter of copying one file. You might get similar results with mysqldump though.

perl -MHTTP::Daemon -MHTTP::Response -MLWP::Simple -e ' ; # The $d = new HTTP::Daemon and fork and getprint $d->url and exit;#spider ($c = $d->accept())->get_request(); $c->send_response( new #in the HTTP::Response(200,$_,$_,qq(Just another Perl hacker\n))); ' # web

In reply to Re: Testing & Databases by Corion
in thread Testing & Databases by domm

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