ScalarDummy example

    public function testInterface()
    {
        $this->assertInstanceOf(NormalizerInterface::class, $this->normalizer);
        $this->assertInstanceOf(DenormalizerInterface::class, $this->normalizer);
        $this->assertInstanceOf(SerializerAwareInterface::class, $this->normalizer);
    }

    public function testSerialize()
    {
        $obj = new ScalarDummy();
        $obj->foo = 'foo';
        $obj->xmlFoo = 'xml';
        $this->assertEquals('foo', $this->normalizer->normalize($obj, 'json'));
        $this->assertEquals('xml', $this->normalizer->normalize($obj, 'xml'));
    }

    public function testDeserialize()
    {
        $obj = $this->normalizer->denormalize('foo', (new ScalarDummy())::class, 'xml');
        $this->assertEquals('foo', $obj->xmlFoo);
        $this->assertNull($obj->foo);

        

private string $exampleDateTimeString = '2017-02-19T15:16:08+0300';

    protected function setUp(): void
    {
        $this->encoder = new XmlEncoder();
        $serializer = new Serializer([new CustomNormalizer()], ['xml' => new XmlEncoder()]);
        $this->encoder->setSerializer($serializer);
    }

    public function testEncodeScalar()
    {
        $obj = new ScalarDummy();
        $obj->xmlFoo = 'foo';

        $expected = '<?xml version="1.0"?>'."\n".
            '<response>foo</response>'."\n";

        $this->assertEquals($expected, $this->encoder->encode($obj, 'xml'));
    }

    public function testEncodeArrayObject()
    {
        $obj = new \ArrayObject(['foo' => 'bar']);