LedgerSMB::DBTest(3pm)					User Contributed Perl Documentation				    LedgerSMB::DBTest(3pm)

NAME

       LedgerSMB::DBTest - LedgerSMB commit filter for test cases.

SYOPSIS

       This module creates a DBI-like interface but ensures autocommit is off, and filters commit statements such that they don't do anything.
       This can be used for making API test cases which involve DB commits safe for production environments.

USAGE

       Both LedgerSMB.pm and LedgerSMB/Form.pm assign a global database handler for all database access within a script in the dbh property (for
       example, $request->{dbh} or $form->{dbh}).  By setting this early to a LedgerSMB::DBTest (instead of a DBI object), the tests can be made
       safe.

       However, there are a few limitations to be aware of.  One cannot run tests through the standard request handler and use this module. Hence
       this is limited to unit tests of files in the LedgerSMB, scripts, and bin directories.

       Here is an example of how this could be done:

	my $lsmb = LedgerSMB->new();
	$lsmb->merge($testdata);
	my $dbh = LedgerSMB::DBTest->connect("dbi:Pg:dbname=$company", "$username",
	    "$password",)
	$lsmb->{dbh} = $dbh;

METHODS

       connect($dsn, $user, $pass)
	   Connects to the database and returns a LedgerSMB::DBTest object

       commit()
	   Tests the current transaction (issues a 'SELECT 1;' to the database).  If this is successful returns 1, if not, rolls back and returns
	   false.

	   Note that this means all past tests are rolled back and this is inconsistent with normal transactional behavior.

       prepare()
	   Returns a statement handle, via the private DBI database handle.

       do()
	   passes this statement on to the private database handle

       errstr()
	   passes this call on to the private database handle

       err()
	   passes this call on to the private database handle

       quote()
	   passes this call on to the private database handle

       quote_identifier()
	   passes this call on to the private database handle

       rollback()
	   passes this call on to the private database handle.	Note that this will roll back all statements issues through this object.

perl v5.14.2							    2010-03-02						    LedgerSMB::DBTest(3pm)