added many-many self referential functional tests (affects #2276)

tests/Doctrine/Tests/Models/ECommerce/ECommerceProduct.php

@@ -45,10 +45,21 @@ class ECommerceProduct
      */
     private $categories;
 
+    /**
+     * This relation is saved with two records in the association table for 
+     * simplicity.
+     * @ManyToMany(targetEntity="ECommerceProduct", cascade={"save"})
+     * @JoinTable(name="ecommerce_products_related",
+            joinColumns={{"name"="product_id", "referencedColumnName"="id"}},
+            inverseJoinColumns={{"name"="related_id", "referencedColumnName"="id"}})
+     */
+    private $related;
+
     public function __construct()
     {
         $this->features = new Collection;
         $this->categories = new Collection;
+        $this->related = new Collection;
     }
 
     public function getId()
@@ -128,4 +139,25 @@ class ECommerceProduct
     {
         return $this->categories;
     }
+
+    public function getRelated()
+    {
+        return $this->related;
+    }
+
+    public function addRelated(ECommerceProduct $related)
+    {
+        if (!$this->related->contains($related)) {
+            $this->related[] = $related;
+            $related->addRelated($this);
+        }
+    }
+
+    public function removeRelated(ECommerceProduct $related)
+    {
+        $removed = $this->related->removeElement($related);
+        if ($removed) {
+            $related->removeRelated($this);
+        }
+    }
 }

tests/Doctrine/Tests/ORM/Functional/AllTests.php

@@ -32,6 +32,7 @@ class AllTests
         $suite->addTestSuite('Doctrine\Tests\ORM\Functional\ManyToManyUnidirectionalAssociationTest');
         $suite->addTestSuite('Doctrine\Tests\ORM\Functional\ManyToManyBidirectionalAssociationTest');
         $suite->addTestSuite('Doctrine\Tests\ORM\Functional\OneToManySelfReferentialAssociationTest');
+        $suite->addTestSuite('Doctrine\Tests\ORM\Functional\ManyToManySelfReferentialAssociationTest');
 
         return $suite;
     }

tests/Doctrine/Tests/ORM/Functional/ManyToManySelfReferentialAssociationTest.php

@@ -0,0 +1,111 @@
+<?php
+
+namespace Doctrine\Tests\ORM\Functional;
+
+use Doctrine\Common\Collections\Collection;
+use Doctrine\Tests\Models\ECommerce\ECommerceProduct;
+
+require_once __DIR__ . '/../../TestInit.php';
+
+/**
+ * Tests a self referential many-to-many association mapping (from a model to the same model, without inheritance).
+ * For simplicity the relation duplicates entries in the association table
+ * to remain simmetrical.
+ */
+class ManyToManySelfReferentialAssociationTest extends AbstractManyToManyAssociationTestCase
+{
+    protected $_firstField = 'product_id';
+    protected $_secondField = 'related_id';
+    protected $_table = 'ecommerce_products_related';
+    private $firstProduct;
+    private $secondProduct;
+    private $firstRelated;
+    private $secondRelated;
+
+    protected function setUp()
+    {
+        $this->useModelSet('ecommerce');
+        parent::setUp();
+        $this->firstProduct = new ECommerceProduct();
+        $this->secondProduct = new ECommerceProduct();
+        $this->firstRelated = new ECommerceProduct();
+        $this->firstRelated->setName("Business");
+        $this->secondRelated = new ECommerceProduct();
+        $this->secondRelated->setName("Home");
+    }
+
+    public function testSavesAManyToManyAssociationWithCascadeSaveSet()
+    {
+        $this->firstProduct->addRelated($this->firstRelated);
+        $this->firstProduct->addRelated($this->secondRelated);
+        $this->_em->save($this->firstProduct);
+        $this->_em->flush();
+        
+        $this->assertForeignKeysContain($this->firstProduct->getId(),
+                                   $this->firstRelated->getId());
+        $this->assertForeignKeysContain($this->firstProduct->getId(),
+                                   $this->secondRelated->getId());
+    }
+
+    public function testRemovesAManyToManyAssociation()
+    {
+        $this->firstProduct->addRelated($this->firstRelated);
+        $this->firstProduct->addRelated($this->secondRelated);
+        $this->_em->save($this->firstProduct);
+        $this->firstProduct->removeRelated($this->firstRelated);
+
+        $this->_em->flush();
+
+        $this->assertForeignKeysNotContain($this->firstProduct->getId(),
+                                   $this->firstRelated->getId());
+        $this->assertForeignKeysContain($this->firstProduct->getId(),
+                                   $this->secondRelated->getId());
+    }
+
+    public function testEagerLoadsOwningSide()
+    {
+        $this->_createLoadingFixture();
+        list ($firstProduct, $secondProduct) = $this->_findProducts();
+        
+        $this->assertEquals(2, count($firstProduct->getRelated()));
+        $this->assertEquals(2, count($secondProduct->getRelated()));
+        
+        $categories = $firstProduct->getRelated();        
+        $firstRelatedBy = $categories[0]->getRelated();
+        $secondRelatedBy = $categories[1]->getRelated();
+        
+        $this->assertEquals(2, count($firstRelatedBy));
+        $this->assertEquals(2, count($secondRelatedBy));
+
+        $this->assertTrue($firstRelatedBy[0] instanceof ECommerceProduct);
+        $this->assertTrue($firstRelatedBy[1] instanceof ECommerceProduct);
+        $this->assertTrue($secondRelatedBy[0] instanceof ECommerceProduct);
+        $this->assertTrue($secondRelatedBy[1] instanceof ECommerceProduct);
+        
+        $this->assertCollectionEquals($firstRelatedBy, $secondRelatedBy);
+    }
+
+    protected function _createLoadingFixture()
+    {
+        $this->firstProduct->addRelated($this->firstRelated);
+        $this->firstProduct->addRelated($this->secondRelated);
+        $this->secondProduct->addRelated($this->firstRelated);
+        $this->secondProduct->addRelated($this->secondRelated);
+        $this->_em->save($this->firstProduct);
+        $this->_em->save($this->secondProduct);
+        
+        $this->_em->flush();
+        $this->_em->clear();
+    }
+
+    protected function _findProducts()
+    {
+        $query = $this->_em->createQuery('SELECT p, r FROM Doctrine\Tests\Models\ECommerce\ECommerceProduct p LEFT JOIN p.related r ORDER BY p.id, r.id');
+        return $query->getResultList();
+    }
+    
+    /* TODO: not yet implemented
+    public function testLazyLoad() {
+        
+    }*/
+}

tests/Doctrine/Tests/OrmFunctionalTestCase.php

@@ -85,6 +85,7 @@ class OrmFunctionalTestCase extends OrmTestCase
             $conn->exec('DELETE FROM ecommerce_features');
             $conn->exec('DELETE FROM ecommerce_categories');
             $conn->exec('DELETE FROM ecommerce_products_categories');
+            $conn->exec('DELETE FROM ecommerce_products_related');
         }
         if (isset($this->_usedModelSets['company'])) {
             $conn->exec('DELETE FROM company_persons_friends');