in-memory database, testing modules using DBIx::Class models

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

Hi,

I'm looking for a better way to test my modules that are using DBIx::Class models by setting up mock data (in large number of tables) and then running test scripts.

So far, I've been using this code (per module):

#! /usr/bin/perl -w

use strict;
use Data::Dumper;

BEGIN {
  use DBIx::RunSQL;
  
  open(FH,'>','/tmp/create.sql') or die('Could not create a file');
  print FH <<EOX;
CREATE TABLE `module_test_table` (
  `id` int(10) NOT NULL PRIMARY KEY,
  `name` varchar(100) NOT NULL,
  `description` varchar(255) default NULL,
);

INSERT INTO module_test_table VALUES (1, 'Name1', NULL);
INSERT INTO module_test_table VALUES (2, 'Name2', NULL);
EOX

  close(FH);
  
  my $dbh = DBIx::RunSQL->create(
    dsn     => 'dbi:SQLite:dbname=:memory:',
    sql     => '/tmp/create.sql',
    force   => 1,
    #verbose => 1,
  );
  
  # override the config file where database connection string is
  # located, instead setup database handle
  use Internal::Config;
  $Internal::Config::c->{dbh} = $dbh;
  $Internal::Config::c->{db_dsn} = undef;
  
  $ENV{DBIC_TRACE} = 1;
}

use Test::More 'no_plan';

# module using DBIx::Class model
use ModuleTest;

my $module_test = ModuleTest->new({ id => 1 });
is($t->id, 1, 'Value of id');
is($t->name, 'Name1', 'Value of name');
is($t->description, undef, 'Value of description');
[download]

This works fine, but I would like to use the actual DBIx::Class models to create tables and set data, and also to extract the boilerplate code to one file used by test scripts.

Thanks

Comment on in-memory database, testing modules using DBIx::Class models Download Code

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Re: in-memory database, testing modules using DBIx::Class models by stepamil (Acolyte) on May 21, 2014 at 09:37 UTC
Found a solution that works for me: `package TestModules; use MyApp::Schema; MyApp::Schema->connection( 'dbi:SQLite:dbname=:memory:', '', '' ); MyApp::Schema->load_namespaces; MyApp::Schema->deploy; # set data MyApp::Schema->resultset('TestModule')->create({ id => 1, name => 'Test', }); 1;` [download] So, just load this module before tests (on using modules that query DBIx::Class models) and it works.	[reply] [d/l]

Replies are listed 'Best First'.

Re: in-memory database, testing modules using DBIx::Class models
by stepamil (Acolyte) on May 21, 2014 at 09:37 UTC

Found a solution that works for me:

package TestModules;

use MyApp::Schema;

MyApp::Schema->connection(
  'dbi:SQLite:dbname=:memory:',
  '',
  ''
);
MyApp::Schema->load_namespaces;
MyApp::Schema->deploy;

# set data
MyApp::Schema->resultset('TestModule')->create({
    id => 1,
    name => 'Test',
  });
1;
[download]

So, just load this module before tests (on using modules that query DBIx::Class models) and it works.

[reply]
[d/l]