Add end to end tests for False types

Author: Marcin Czarnecki

src/GraphNavigator/DeserializationGraphNavigator.php

@@ -128,6 +128,8 @@ public function accept($data, ?array $type = null)
 
             case 'bool':
             case 'boolean':
+            case 'false':
+            case 'true':
                 return $this->visitor->visitBoolean($data, $type);
 
             case 'double':

tests/Fixtures/DataFalse.php

@@ -0,0 +1,13 @@
+<?php
+
+declare(strict_types=1);
+
+namespace JMS\Serializer\Tests\Fixtures;
+
+class DataFalse
+{
+    public function __construct(
+        public false $data
+    ) {
+    }
+}

tests/Fixtures/DataTrue.php

@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace JMS\Serializer\Tests\Fixtures;
+
+class DataTrue
+{
+    public true $data;
+}

tests/Serializer/JsonSerializationTest.php

@@ -15,6 +15,7 @@
 use JMS\Serializer\SerializationContext;
 use JMS\Serializer\Tests\Fixtures\Author;
 use JMS\Serializer\Tests\Fixtures\AuthorList;
+use JMS\Serializer\Tests\Fixtures\DataFalse;
 use JMS\Serializer\Tests\Fixtures\DiscriminatedAuthor;
 use JMS\Serializer\Tests\Fixtures\DiscriminatedComment;
 use JMS\Serializer\Tests\Fixtures\FirstClassMapCollection;
@@ -151,6 +152,8 @@ protected static function getContent($key)
             $outputs['data_float'] = '{"data":1.236}';
             $outputs['data_bool'] = '{"data":false}';
             $outputs['data_string'] = '{"data":"foo"}';
+            $outputs['data_true'] = '{"data":true}';
+            $outputs['data_false'] = '{"data":false}';
             $outputs['data_author'] = '{"data":{"full_name":"foo"}}';
             $outputs['data_comment'] = '{"data":{"author":{"full_name":"foo"},"text":"bar"}}';
             $outputs['data_discriminated_author'] = '{"data":{"full_name":"foo","objectType":"author"}}';
@@ -480,6 +483,31 @@ public function testSerializingUnionProperties()
         self::assertEquals(static::getContent('data_string'), $serialized);
     }
 
+    public function testFalseDataType()
+    {
+        if (PHP_VERSION_ID < 80200) {
+            $this->markTestSkipped('False type requires PHP 8.2');
+
+            return;
+        }
+
+        self::assertEquals(
+            static::getContent('data_false'),
+            $this->serialize(new DataFalse(false)),
+        );
+
+        self::assertEquals(
+            new DataFalse(false),
+            $this->deserialize(static::getContent('data_false'), DataFalse::class),
+        );
+
+        //What should we expect here?
+        self::assertEquals(
+            null,
+            $this->deserialize(static::getContent('data_true'), DataFalse::class),
+        );
+    }
+
     public function testDeserializingComplexDiscriminatedUnionProperties()
     {
         if (PHP_VERSION_ID < 80000) {