fix: fixed StringTypeMapper for non scalar values

Author: rasstislav

src/Core/Mapping/Parameter/StringTypeMapper.php

@@ -2,11 +2,17 @@
 
 namespace Apitte\Core\Mapping\Parameter;
 
+use Apitte\Core\Exception\Runtime\InvalidArgumentTypeException;
+
 class StringTypeMapper implements ITypeMapper
 {
 
 	public function normalize(mixed $value): ?string
 	{
+		if (!is_scalar($value)) {
+			throw new InvalidArgumentTypeException('string');
+		}
+
 		return (string) $value;
 	}
 

tests/Cases/Core/Mapping/Parameter/StringTypeMapperTest.phpt

@@ -2,6 +2,7 @@
 
 require_once __DIR__ . '/../../../../bootstrap.php';
 
+use Apitte\Core\Exception\Runtime\InvalidArgumentTypeException;
 use Apitte\Core\Mapping\Parameter\StringTypeMapper;
 use Apitte\Core\Schema\EndpointParameter;
 use Tester\Assert;
@@ -21,6 +22,15 @@ final class StringTypeMapperTest extends TestCase
 		Assert::same('-10', $mapper->normalize(-10, $parameter));
 	}
 
+	public function testFail(): void
+	{
+		$mapper = new StringTypeMapper();
+
+		Assert::exception(function () use ($mapper): void {
+			$mapper->normalize(['']);
+		}, InvalidArgumentTypeException::class);
+	}
+
 }
 
 (new StringTypeMapperTest())->run();