patch serialization of numeric only pattern properties

Author: Enno Woortmann

src/SchemaProcessor/PostProcessor/Internal/SerializationPostProcessor.php

@@ -157,7 +157,7 @@ private function addPatternPropertiesSerialization(
             new class () implements SerializationHookInterface {
                 public function getCode(): string
                 {
-                    return '$data = array_merge($this->serializePatternProperties($depth, $except), $data);';
+                    return '$data += $this->serializePatternProperties($depth, $except);';
                 }
             },
         );

tests/Basic/PatternPropertiesTest.php

@@ -6,6 +6,9 @@
 
 use PHPModelGenerator\Exception\SchemaException;
 use PHPModelGenerator\Model\GeneratorConfiguration;
+use PHPModelGenerator\ModelGenerator;
+use PHPModelGenerator\SchemaProcessor\PostProcessor\AdditionalPropertiesAccessorPostProcessor;
+use PHPModelGenerator\SchemaProcessor\PostProcessor\PatternPropertiesAccessorPostProcessor;
 use PHPModelGenerator\Tests\AbstractPHPModelGeneratorTestCase;
 use stdClass;
 
@@ -97,4 +100,22 @@ public function testPatternEscaping(): void
 
         $this->assertSame(['a/b' => 'Hello'], $object->getRawModelDataInput());
     }
+
+    public function testNumericPatternProperties(): void
+    {
+        $this->modifyModelGenerator = static function (ModelGenerator $generator): void {
+            $generator->addPostProcessor(new PatternPropertiesAccessorPostProcessor(),);
+        };
+
+        $className = $this->generateClassFromFileTemplate(
+            'PatternProperty.json',
+            ['^[0-9]+$'],
+            (new GeneratorConfiguration())->setSerialization(true),
+        );
+
+        $object = new $className([10 => 'Hello', '12' => 'World']);
+
+        $this->assertSame(['10' => 'Hello', '12' => 'World'], $object->toArray());
+        $this->assertSame(['10' => 'Hello', '12' => 'World'], $object->getPatternProperties('^[0-9]+$'));
+    }
 }