Creational --- Simple Factory

Purpose:

It differs from the static factory because it is not static. Therefore, you can have multiple factories, differently parameterized, you can subclass it and you can mock it. It always should be preferred over a static factory!

SimpleFactory.php

<?php

namespace DesignPatterns\Creational\SimpleFactory;

class SimpleFactory
{
    public function createBicycle(): Bicycle
    {
        return new Bicycle();
    }
}

Bicycle.php

<?php

namespace DesignPattern\Creational\SimpleFactory;

class Bicycle
{
    public function driveTo($destination) 
    {
        
    }  
} 

  

Tests/SimpleFactoryTest.php

<?php

namespace DesignPatterns\Creational\SimpleFactory\Tests;

use DesignPatterns\Creational\SimpleFactory\Bicycle;
use DesignPatterns\Creational\SimpleFactory\SimpleFactory;
use PHPUnit\Framework\TestCase;

class SimpleFactoryTest extends TestCase
{
    public function testCanCreateBicycle()
    {
        $bicycle = (new SimpleFactory())->createBicycle();
        $this->assertInstanceOf(Bicycle::class, $bicycle);
    }
}

  

 

转载于:https://www.cnblogs.com/victorchen/p/10831833.html

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