BUGFIX: Set property to null via objects yaml

Author: mhsdesign

Neos.Flow/Classes/ObjectManagement/DependencyInjection/ProxyClassBuilder.php

@@ -368,6 +368,8 @@ protected function buildPropertyInjectionCode(Configuration $objectConfiguration
                         $preparedSetterArgument = var_export($propertyValue, true);
                     } elseif (is_bool($propertyValue)) {
                         $preparedSetterArgument = $propertyValue ? 'true' : 'false';
+                    } elseif ($propertyValue === null) {
+                        $preparedSetterArgument = 'null';
                     } else {
                         $preparedSetterArgument = $propertyValue;
                     }

Neos.Flow/Configuration/Testing/Objects.yaml

@@ -37,6 +37,8 @@ Neos\Flow\Tests\Functional\ObjectManagement\Fixtures\SingletonClassC:
       value: true
     protectedBooleanFalsePropertySetViaObjectsYaml:
       value: false
+    protectedNullPropertySetViaObjectsYaml:
+      value: null
     protectedArrayPropertyWithSetterSetViaObjectsYaml:
       value: {'and': 'something from Objects.yaml'}
   arguments:

Neos.Flow/Tests/Functional/ObjectManagement/DependencyInjectionTest.php

@@ -71,6 +71,7 @@ public function propertiesOfVariousPrimitiveTypeAreSetInSingletonPropertiesIfCon
         self::assertSame(['iAm' => ['aConfigured' => 'arrayValue']], $objectC->getProtectedArrayPropertySetViaObjectsYaml());
         self::assertTrue($objectC->getProtectedBooleanTruePropertySetViaObjectsYaml());
         self::assertFalse($objectC->getProtectedBooleanFalsePropertySetViaObjectsYaml());
+        self::assertNull($objectC->getProtectedNullPropertySetViaObjectsYaml());
     }
 
     /**

Neos.Flow/Tests/Functional/ObjectManagement/Fixtures/SingletonClassC.php

@@ -60,6 +60,11 @@ class SingletonClassC
      */
     protected $protectedBooleanFalsePropertySetViaObjectsYaml;
 
+    /**
+     * @var null
+     */
+    protected $protectedNullPropertySetViaObjectsYaml;
+
     /**
      * @var array
      */
@@ -123,6 +128,11 @@ public function getProtectedBooleanFalsePropertySetViaObjectsYaml()
         return $this->protectedBooleanFalsePropertySetViaObjectsYaml;
     }
 
+    public function getProtectedNullPropertySetViaObjectsYaml()
+    {
+        return $this->protectedNullPropertySetViaObjectsYaml;
+    }
+
     /**
      * @return array
      */