public function testStatics()
 {
     $this->assertEquals('fieldname', QueryAssembler::stringify(FieldSelectExpression::create('fieldname')));
     $this->assertEquals('fieldname AS new_name', QueryAssembler::stringify(FieldSelectExpression::createWithAlias('fieldname', 'new_name')));
 }
 public function testSelectField()
 {
     $this->assertEquals('`myfield` AS `unique`', MySQLAssembler::stringify(FieldSelectExpression::createWithAlias('myfield', 'unique')));
 }