check null

Author: František Mazura

README.md

@@ -24,4 +24,5 @@ PHP Value object for storing valid data.
   - touch (`setTouched`, `isTouched`, `getTouchedAll`)
   - add interface `ValueObjectInterface`
   - remove trait
-  - min request PHP 7.4
+  - min request PHP 7.4
+  - check null

src/AbstractValueObject.php

@@ -3,6 +3,7 @@
 namespace OGSoft\ValueObjects;
 
 use Carbon\Carbon;
+use DateTime;
 use Exception;
 use OGSoft\ValueObjects\Exceptions\ValidatorException;
 use OGSoft\ValueObjects\Interfaces\GlobalValidatorInterface;
@@ -191,6 +192,11 @@ private static function transformBuildInType(ReflectionParameter $reflectionPara
 			}
 		}
 
+		// check null
+		if (!$reflectionParameter->allowsNull() && empty($value)) {
+			throw new Exception("Wrong data type of property. Data can not be null");
+		}
+
 		// general
 		return $value;
 	}

tests/ValueObjectTest.php

@@ -3,6 +3,7 @@
 
 namespace Tests;
 
+use OGSoft\ValueObjects\Exceptions\ValidatorException;
 use PHPUnit\Framework\TestCase;
 use Tests\ValueObjects\CarValueObject;
 
@@ -43,5 +44,25 @@ public function testTest(): void
 
 		$this->assertTrue($car->isTouched("name"));
 	}
+
+	public function testNull()
+	{
+		$data = [
+			"name" => "My car",
+			// test null value
+			"enginePower" => null,
+			"wheels" => [
+				["size" => 5],
+				["size" => null],
+				[],
+				["size" => 6, "tire" => ["winter" => true]],
+			]
+		];
+
+		$car = new CarValueObject();
+		$this->expectException(ValidatorException::class);
+		$car->init($data);
+		$this->assertTrue(true);
+	}
 }