OOP model dodavatele v eshopu

model.php

<?php
namespace test;

class objednavkaDopravaInfo
{
    public $kg;
    public $psc;
    public $typ;
    public $dostupnost; // dostupnost u nas
    
    public function __construct($kg, $dostupnost, $typ = "normalni")
    {
        $this->kg = $kg;
        $this->dostupnost = $dostupnost;
        $this->typ = $typ;
    }
}

class info
{
    public $name;
    public $cena;
    public $dobaDodani;
    public $adresa;
    public $kontakt;
        
    public function __construct($name, $cena, $dobaDodani, $kontakt)
    {
        $this->name = $name;
        $this->cena = $cena;
        $this->dobaDodani = $dobaDodani;
        $this->kontakt = $kontakt;
    }
    
    public function getHtml()
    {
        return '<div class="span4">
            <h4>' . $this->name . '</h4>
            <p>Cena: ' . $this->cena . 'Kč</p>
        </div>';
    }
}

abstract class dodavatel
{
    public $name;
    public $adresa;
    public $kontakt;
    
    /**
     * @return bool
     */
    abstract public function lzePouzit( objednavkaDopravaInfo $info );
    /**
     * @return info
     */
    abstract public function info( objednavkaDopravaInfo $info );   
}

class osobne extends dodavatel
{
    public function __construct()
    {
        $this->name = "Osovní odběr";
        $this->adresa = "Adrsa k nám...";
        $this->kontakt = "+420 000 000 000";
    }

    public function lzePouzit( objednavkaDopravaInfo $info )
    {
        return true;
    }
    
    public function info( objednavkaDopravaInfo $info )
    {
        
    }
}

class ceska_posta extends dodavatel
{
    
    
    public function lzePouzit( objednavkaDopravaInfo $info )
    {
        if( $info->kg > 20 )
            return false;
        if ($info->typ == "nadmerna_velikost" )
            return false;
        
        return true;
    }
    
    public function info( objednavkaDopravaInfo $info )
    {
            
    }
}

class toptrans extends dodavatel
{
    private $psc_sck_pha = array( "110 00", "120 000" );
    
    public function lzePouzit( objednavkaDopravaInfo $info )
    {
        if ( in_array( $info->psc , $this->psc_sck_pha ) )
            return true;
        else
            return false;
    }
    
    public function info( objednavkaDopravaInfo $info )
    {
            
    }
}

tests.php

<?php

require_once("model.php");

class DodavatelTest extends PHPUnit_Framework_TestCase
{
    public $data_z_kosiku;
    public $dodavatele;
    
    protected function setUp()
    {
        $this->data_z_kosiku['1'] = new \test\objednavkaDopravaInfo(10, "normalni");
        $this->data_z_kosiku['2'] = new \test\objednavkaDopravaInfo(21, "nadmerna_velikost");
        $this->data_z_kosiku['3'] = new \test\objednavkaDopravaInfo(21, "normalni");
        
        $this->dodavatele['osobne'] = new \test\osobne();
        $this->dodavatele['posta'] = new \test\ceska_posta();
        $this->dodavatele['toptrans'] = new \test\toptrans();
    }


    public function testDodavatelu()
    {
        foreach( $this->data_z_kosiku as $item)
        {
            $this->assertNotNull( $item, "");
        }
        
        foreach( $this->dodavatele as $dodavatel )
        {
            $this->assertNotNull( $dodavatel, "" );
        }
        
        // Osobně lze vše
        foreach( $this->data_z_kosiku as $item )
        {
            $this->assertTrue( $this->dodavatele['osobne']->lzePouzit( $item ) );
        }
        
        // Poštou ne nad 20
        $this->assertTrue( $this->dodavatele['posta']->lzePouzit( $this->data_z_kosiku['1'] ) );
        $this->assertFalse( $this->dodavatele['posta']->lzePouzit( $this->data_z_kosiku['2'] ) );
        $this->assertFalse( $this->dodavatele['posta']->lzePouzit( $this->data_z_kosiku['3'] ) );
    }
}