$this->database->setExistingTables( array( 'table' ) );
$this->database->dropTable( 'table', __METHOD__ );
$this->assertLastSql( 'DROP TABLE table' );
$this->database->setExistingTables( array( 'table' ) );
$this->database->dropTable( 'table', __METHOD__ );
$this->assertLastSql( 'DROP TABLE table' );