Initial failing test-case to demonstrate cascade-persist problem.

tests/Doctrine/Tests/Models/CMS/CmsEmail.php

@@ -22,7 +22,7 @@ class CmsEmail
     public $email;
 
     /**
-     * @OneToOne(targetEntity="CmsUser", mappedBy="email")
+     * @OneToOne(targetEntity="CmsUser", mappedBy="email", cascade={"persist"})
      */
     public $user;
 

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

@@ -9,6 +9,7 @@ use Doctrine\ORM\ORMInvalidArgumentException;
 use Doctrine\ORM\PersistentCollection;
 use Doctrine\ORM\Proxy\Proxy;
 use Doctrine\ORM\Query;
+use Doctrine\Tests\Models\CMS\CmsEmail;
 use Doctrine\ORM\UnitOfWork;
 use Doctrine\Tests\Models\CMS\CmsAddress;
 use Doctrine\Tests\Models\CMS\CmsArticle;
@@ -801,6 +802,50 @@ class BasicFunctionalTest extends OrmFunctionalTestCase
         $this->_em->flush();
     }
 
+    /**
+     * @group DDC-2922
+     */
+    public function testNewAssociatedEntityWorksWithJustOnePath()
+    {
+
+        /**
+         * First we persist and flush an e-mail with no user. This seems
+         * Save an un-owned email with no user. This seems to
+         * matter for reproducing the bug
+         */
+        $mail = new CmsEmail();
+        $mail->email = "nobody@example.com";
+        $mail->user = null;
+
+        $this->_em->persist($mail);
+        $this->_em->flush();
+
+        $user = new CmsUser();
+        $user->username = "beberlei";
+        $user->name = "Benjamin E.";
+        $user->status = 'active';
+
+        $mail->user = $user;
+
+        /**
+         * Note that we have NOT directly persisted the CmsUser, and CmsAddress
+         * does NOT have cascade-persist.
+         *
+         * However, CmsEmail *does* have a cascade-persist, which ought to
+         * allow us to save the CmsUser anyway through that connection.
+         */
+        $address = new CmsAddress();
+        $address->city = "Bonn";
+        $address->zip = "12354";
+        $address->country = "Germany";
+        $address->street = "somestreet";
+        $address->user = $user;
+
+        $this->_em->persist($address);
+        $this->_em->flush();
+
+    }
+
     public function testOneToOneOrphanRemoval()
     {
         $user = new CmsUser();