Add workaround for 'Icon with identifier "default-not-found" is not registered'

Author: cundd

Tests/Functional/AbstractCase.php

@@ -22,6 +22,8 @@
 use Cundd\Rest\VirtualObject\Persistence\RawQueryBackendInterface;
 use Doctrine\DBAL\DBALException;
 use Psr\Log\LoggerInterface as PsrLoggerInterface;
+use TYPO3\CMS\Core\Imaging\IconProvider\SvgIconProvider;
+use TYPO3\CMS\Core\Imaging\IconRegistry;
 use TYPO3\CMS\Core\Tests\FunctionalTestCase;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\CMS\Extbase\Object\Container\Container;
@@ -173,6 +175,8 @@ public function injectPropertyIntoObject($propertyValue, $propertyKey, $object)
      */
     private function buildConfiguredObjectManager()
     {
+        $this->initializeIconRegistry();
+
         /** @var Container $objectContainer */
         $objectContainer = GeneralUtility::makeInstance(Container::class);
 
@@ -282,4 +286,17 @@ protected function registerLoggerImplementation()
         $container->registerImplementation(PsrLoggerInterface::class, StreamLogger::class);
         $container->registerImplementation(CunddLoggerInterface::class, StreamLogger::class);
     }
+
+    private function initializeIconRegistry()
+    {
+        $iconRegistry = GeneralUtility::makeInstance(IconRegistry::class);
+
+        if (!$iconRegistry->isRegistered('default-not-found')) {
+            $iconRegistry->registerIcon(
+                'default-not-found',
+                SvgIconProvider::class,
+                ['source' => 'EXT:rest/ext_icon.svg']
+            );
+        }
+    }
 }