/** * @covers SQLBuilder::getColumnsString */ public function testGetColumnsString() { $this->sql->select('users', 'u', array('id', 'username', 'email')); $actual = $this->sql->getColumnsString(); $excepted = "u.id u_id,u.username u_username,u.email u_email"; $this->assertSame($excepted, $actual); }