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.