Fix test failures and PHP 8.4 deprecation

- Fix StringTypeMapperTest to not pass extra argument
- Add enum key to expected output in ArraySerializator test
- Handle missing enum key in ArrayHydrator
- Fix fputcsv deprecation in CsvTransformer for PHP 8.4

Author: claude

src/Core/Schema/Serialization/ArrayHydrator.php

@@ -74,7 +74,7 @@ private function hydrateEndpoint(array $data): Endpoint
 				$parameter->setRequired($param['required']);
 				$parameter->setDeprecated($param['deprecated']);
 				$parameter->setAllowEmpty($param['allowEmpty']);
-				$parameter->setEnum($param['enum']);
+				$parameter->setEnum($param['enum'] ?? null);
 
 				$endpoint->addParameter($parameter);
 			}

src/Negotiation/Transformer/CsvTransformer.php

@@ -48,7 +48,7 @@ protected function transformResponse(ApiRequest $request, ApiResponse $response)
 	/**
 	 * @param mixed[][] $rows
 	 */
-	private function convert(array $rows, string $delimiter = ',', string $enclosure = '"'): string
+	private function convert(array $rows, string $delimiter = ',', string $enclosure = '"', string $escape = '\\'): string
 	{
 		$fp = fopen('php://temp', 'r+');
 
@@ -63,7 +63,7 @@ private function convert(array $rows, string $delimiter = ',', string $enclosure
 				}
 			}
 
-			fputcsv($fp, $row, $delimiter, $enclosure);
+			fputcsv($fp, $row, $delimiter, $enclosure, $escape);
 		}
 
 		rewind($fp);

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

@@ -4,7 +4,6 @@ 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;
 use Tester\TestCase;
 
@@ -14,12 +13,11 @@ final class StringTypeMapperTest extends TestCase
 	public function testOk(): void
 	{
 		$mapper = new StringTypeMapper();
-		$parameter = new EndpointParameter('foo', EndpointParameter::TYPE_STRING);
 
-		Assert::same('0', $mapper->normalize(0, $parameter));
-		Assert::same('0.33', $mapper->normalize(0.33, $parameter));
-		Assert::same('1.99', $mapper->normalize(1.99, $parameter));
-		Assert::same('-10', $mapper->normalize(-10, $parameter));
+		Assert::same('0', $mapper->normalize(0));
+		Assert::same('0.33', $mapper->normalize(0.33));
+		Assert::same('1.99', $mapper->normalize(1.99));
+		Assert::same('-10', $mapper->normalize(-10));
 	}
 
 	public function testFail(): void

tests/Cases/Core/Schema/Serialization/ArraySerializator.phpt

@@ -102,6 +102,7 @@ Toolkit::test(function (): void {
 					'required' => true,
 					'allowEmpty' => true,
 					'deprecated' => true,
+					'enum' => null,
 				],
 				'm3-p2' => [
 					'name' => 'm3-p2',
@@ -111,6 +112,7 @@ Toolkit::test(function (): void {
 					'required' => true,
 					'allowEmpty' => false,
 					'deprecated' => false,
+					'enum' => null,
 				],
 			],
 			'responses' => [