added one-one self referential functional tests (closes #2276)

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

@@ -28,6 +28,15 @@ class ECommerceCustomer
      * @OneToOne(targetEntity="ECommerceCart", mappedBy="customer", cascade={"save"})
      */
     private $cart;
+
+    /**
+     * Example of a one-one self referential association. A mentor can follow
+     * only one customer at the time, while a customer can choose only one
+     * mentor. Not properly appropriate but it works.
+     * @OneToOne(targetEntity="ECommerceCustomer", cascade={"save"})
+     * @JoinColumn(name="mentor_id", referencedColumnName="id")
+     */
+    private $mentor;
     
     public function getId() {
         return $this->id;
@@ -66,4 +75,19 @@ class ECommerceCustomer
             $cart->removeCustomer();
         }
     }
+
+    public function setMentor(ECommerceCustomer $mentor)
+    {
+        $this->mentor = $mentor;
+    }
+
+    public function removeMentor()
+    {
+        $this->mentor = null;
+    }
+
+    public function getMentor()
+    {
+        return $this->mentor;
+    }
 }

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

@@ -31,6 +31,7 @@ class AllTests
         $suite->addTestSuite('Doctrine\Tests\ORM\Functional\OneToManyBidirectionalAssociationTest');
         $suite->addTestSuite('Doctrine\Tests\ORM\Functional\ManyToManyUnidirectionalAssociationTest');
         $suite->addTestSuite('Doctrine\Tests\ORM\Functional\ManyToManyBidirectionalAssociationTest');
+        $suite->addTestSuite('Doctrine\Tests\ORM\Functional\OneToOneSelfReferentialAssociationTest');
         $suite->addTestSuite('Doctrine\Tests\ORM\Functional\OneToManySelfReferentialAssociationTest');
         $suite->addTestSuite('Doctrine\Tests\ORM\Functional\ManyToManySelfReferentialAssociationTest');
 

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

+<?php
+
+namespace Doctrine\Tests\ORM\Functional;
+
+use Doctrine\Tests\Models\ECommerce\ECommerceCustomer;
+
+require_once __DIR__ . '/../../TestInit.php';
+
+/**
+ * Tests a self referential one-to-one association mapping (without inheritance).
+ * Relation is defined as the mentor that a customer choose. The mentor could 
+ * help only one other customer, while a customer can choose only one mentor
+ * for receiving support.
+ * Inverse side is not present.
+ */
+class OneToOneSelfReferentialAssociationTest extends \Doctrine\Tests\OrmFunctionalTestCase
+{
+    private $customer;
+    private $mentor;
+
+    protected function setUp()
+    {
+        $this->useModelSet('ecommerce');
+        parent::setUp();
+        $this->customer = new ECommerceCustomer();
+        $this->customer->setName('Anakin Skywalker');
+        $this->mentor = new ECommerceCustomer();
+        $this->mentor->setName('Obi-wan Kenobi');
+    }
+
+    public function testSavesAOneToOneAssociationWithCascadeSaveSet() {
+        $this->customer->setMentor($this->mentor);
+        $this->_em->save($this->customer);
+        
+        $this->assertForeignKeyIs($this->mentor->getId());
+    }
+
+    public function testRemovesOneToOneAssociation()
+    {
+        $this->customer->setMentor($this->mentor);
+        $this->_em->save($this->customer);
+        $this->customer->removeMentor();
+
+        $this->_em->flush();
+
+        $this->assertForeignKeyIs(null);
+    }
+
+    public function testEagerLoad()
+    {
+        $customer = new ECommerceCustomer;
+        $customer->setName('Luke Skywalker');
+        $mentor = new ECommerceCustomer;
+        $mentor->setName('Obi-wan Kenobi');
+        $customer->setMentor($mentor);
+        
+        $this->_em->save($customer);
+        
+        $this->_em->flush();
+        $this->_em->clear();
+
+        $query = $this->_em->createQuery('select c, m from Doctrine\Tests\Models\ECommerce\ECommerceCustomer c left join c.mentor m');
+        $result = $query->getResultList();
+        $customer = $result[0];
+        
+        $this->assertTrue($customer->getMentor() instanceof ECommerceCustomer);
+        $this->assertEquals('Obi-wan Kenobi', $customer->getMentor()->getName());
+    }
+    
+    /* TODO: not yet implemented
+    public function testLazyLoad() {
+        
+    }*/
+
+    public function assertForeignKeyIs($value) {
+        $foreignKey = $this->_em->getConnection()->execute('SELECT mentor_id FROM ecommerce_customers WHERE id=?', array($this->customer->getId()))->fetchColumn();
+        $this->assertEquals($value, $foreignKey);
+    }
+}