Actualización

vendor/symfony/serializer/Tests/Normalizer/ObjectToPopulateTraitTest.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace Symfony\Component\Serializer\Tests\Normalizer;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Serializer\Normalizer\ObjectToPopulateTrait;
+use Symfony\Component\Serializer\Tests\Fixtures\ProxyDummy;
+
+class ObjectToPopulateTraitTest extends TestCase
+{
+    use ObjectToPopulateTrait;
+
+    public function testExtractObjectToPopulateReturnsNullWhenKeyIsMissing()
+    {
+        $object = $this->extractObjectToPopulate(ProxyDummy::class, []);
+
+        $this->assertNull($object);
+    }
+
+    public function testExtractObjectToPopulateReturnsNullWhenNonObjectIsProvided()
+    {
+        $object = $this->extractObjectToPopulate(ProxyDummy::class, [
+            'object_to_populate' => 'not an object',
+        ]);
+
+        $this->assertNull($object);
+    }
+
+    public function testExtractObjectToPopulateReturnsNullWhenTheClassIsNotAnInstanceOfTheProvidedClass()
+    {
+        $object = $this->extractObjectToPopulate(ProxyDummy::class, [
+            'object_to_populate' => new \stdClass(),
+        ]);
+
+        $this->assertNull($object);
+    }
+
+    public function testExtractObjectToPopulateReturnsObjectWhenEverythingChecksOut()
+    {
+        $expected = new ProxyDummy();
+        $object = $this->extractObjectToPopulate(ProxyDummy::class, [
+            'object_to_populate' => $expected,
+        ]);
+
+        $this->assertSame($expected, $object);
+    }
+}