Add a test for doctrine#9192

tests/Doctrine/Tests/ORM/Functional/Ticket/GH9192Test.php

@@ -0,0 +1,136 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional\Ticket;
+
+use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\Common\Collections\Collection;
+use Doctrine\ORM\Mapping as ORM;
+use Doctrine\Tests\OrmFunctionalTestCase;
+
+class GH9192Test extends OrmFunctionalTestCase
+{
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->createSchemaForModels(GH9192A::class, GH9192B::class, GH9192C::class);
+    }
+
+    public function testIssue(): void
+    {
+        $a = new GH9192A();
+
+        $b    = new GH9192B();
+        $b->a = $a;
+        $a->bs->add($b);
+
+        $c    = new GH9192C();
+        $c->b = $b;
+        $b->cs->add($c);
+
+        $a->c = $c;
+
+        $this->_em->persist($a);
+        $this->_em->persist($b);
+        $this->_em->persist($c);
+        $this->_em->flush();
+
+        $this->expectNotToPerformAssertions();
+
+        $this->_em->remove($a);
+        $this->_em->flush();
+    }
+}
+
+/**
+ * @ORM\Entity
+ */
+class GH9192A
+{
+    /**
+     * @ORM\Id
+     * @ORM\Column(type="integer")
+     * @ORM\GeneratedValue(strategy="AUTO")
+     *
+     * @var int
+     */
+    public $id;
+
+    /**
+     * @ORM\OneToMany(targetEntity="GH9192B", mappedBy="a", cascade={"remove"})
+     *
+     * @var Collection<GH9192B>
+     */
+    public $bs;
+
+    /**
+     * @ORM\OneToOne(targetEntity="GH9192C")
+     * @ORM\JoinColumn(nullable=true, onDelete="SET NULL")
+     *
+     * @var GH9192C
+     */
+    public $c;
+
+    public function __construct()
+    {
+        $this->bs = new ArrayCollection();
+    }
+}
+
+/**
+ * @ORM\Entity
+ */
+class GH9192B
+{
+    /**
+     * @ORM\Id
+     * @ORM\Column(type="integer")
+     * @ORM\GeneratedValue(strategy="AUTO")
+     *
+     * @var int
+     */
+    public $id;
+
+    /**
+     * @ORM\OneToMany(targetEntity="GH9192C", mappedBy="b", cascade={"remove"})
+     *
+     * @var Collection<GH9192C>
+     */
+    public $cs;
+
+    /**
+     * @ORM\ManyToOne(targetEntity="GH9192A", inversedBy="bs")
+     *
+     * @var GH9192A
+     */
+    public $a;
+
+    public function __construct()
+    {
+        $this->cs = new ArrayCollection();
+    }
+}
+
+/**
+ * @ORM\Entity
+ */
+class GH9192C
+{
+    /**
+     * @ORM\Id
+     * @ORM\Column(type="integer")
+     * @ORM\GeneratedValue(strategy="AUTO")
+     *
+     * @var int
+     */
+    public $id;
+
+    /**
+     * @ORM\ManyToOne(targetEntity="GH9192B", inversedBy="cs")
+     *
+     * @var GH9192B
+     */
+    public $b;
+}