Treat uninitialized property as null

Author: batyrmastyr

CHANGELOG.md

@@ -3,6 +3,8 @@
 ## 2.5.1 under development
 
 - Bug #776: Take `PropertyTranslatorProviderInterface` into account during context validation (@vjik)
+- Enh #???: Default Intl locale in tests (@batyrmastyr)
+- Enh #???: Support validation of uninitialized properties (@batyrmastyr)
 
 ## 2.5.0 July 19, 2025
 

phpunit.xml.dist

@@ -15,6 +15,7 @@
 >
     <php>
         <ini name="error_reporting" value="-1"/>
+        <ini name="intl.default_locale" value="en"/>
     </php>
 
     <testsuites>

src/Helper/ObjectParser.php

@@ -279,8 +279,13 @@ public function getLabels(): array
      */
     public function getPropertyValue(string $property): mixed
     {
-        return is_object($this->source)
-            ? ($this->getReflectionProperties()[$property] ?? null)?->getValue($this->source)
+        if (!is_object($this->source)) {
+            return null;
+        }
+
+        $reflectionProperty = $this->getReflectionProperties()[$property] ?? null;
+        return $reflectionProperty?->isInitialized($this->source)
+            ? $reflectionProperty?->getValue($this->source)
             : null;
     }
 
@@ -312,6 +317,9 @@ public function getData(): array
 
         $data = [];
         foreach ($this->getReflectionProperties() as $name => $property) {
+            if (!$property->isInitialized($this->source)) {
+                continue;
+            }
             /** @var mixed */
             $data[$name] = $property->getValue($this->source);
         }

tests/Helper/ObjectParserTest.php

@@ -178,4 +178,18 @@ public function testDisabledCache(): void
         $this->assertNotSame($rules, $parser->getRules());
         $this->assertArrayNotHasKey($cacheKey, $cacheProperty->getValue());
     }
+
+    public function testUninitializedProperty(): void
+    {
+        $parser = new ObjectParser(new class () {
+            public int $a = 4;
+            public int $uninitialized;
+        });
+
+        $this->assertNull($parser->getPropertyValue('not-existing'));
+        $this->assertSame(4, $parser->getPropertyValue('a'));
+        $this->assertNull($parser->getPropertyValue('uninitialized'));
+
+        $this->assertSame(['a' => 4], $parser->getData());;
+    }
 }