the REAL factory method pattern

Tests/FactoryMethod/FactoryMethodTest.php

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+<?php
+
+/*
+ * DesignPatternPHP
+ */
+
+namespace DesignPatterns\Tests\FactoryMethod;
+
+use DesignPatterns\FactoryMethod;
+
+/**
+ * FactoryMethodTest tests the factory method pattern
+ */
+class FactoryMethodTest extends \PHPUnit_Framework_TestCase
+{
+
+    protected $type = array('cheap', 'fast');
+
+    public function getShop()
+    {
+        return array(
+            array(new FactoryMethod\GermanFactory()),
+            array(new FactoryMethod\ItalianFactory())
+        );
+    }
+
+    /**
+     * @dataProvider getShop
+     */
+    public function testCreation(FactoryMethod\FactoryMethod $shop)
+    {
+        // this test method acts as a client for the factory. We don't care
+        // about the factory, all we know is it can produce vehicle
+        foreach ($this->type as $oneType) {
+            $vehicle = $shop->create($oneType);
+            $this->assertInstanceOf('DesignPatterns\FactoryMethod\Vehicle', $vehicle);
+        }
+    }
+
+    /**
+     * @dataProvider getShop
+     * @expectedException \InvalidArgumentException
+     * @expectedExceptionMessage spaceship is not a valid vehicle
+     */
+    public function testUnknownType(FactoryMethod\FactoryMethod $shop)
+    {
+        $shop->create('spaceship');
+    }
+
+}