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ServerDumper example

switch (true) {
            case 'html' === $format:
                $dumper = new HtmlDumper();
                break;
            case 'cli' === $format:
                $dumper = new CliDumper();
                break;
            case 'server' === $format:
            case $format && 'tcp' === parse_url($format, \PHP_URL_SCHEME):
                $host = 'server' === $format ? $_SERVER['VAR_DUMPER_SERVER'] ?? '127.0.0.1:9912' : $format;
                $dumper = \in_array(\PHP_SAPI, ['cli', 'phpdbg'], true) ? new CliDumper() : new HtmlDumper();
                $dumper = new ServerDumper($host, $dumper, self::getDefaultContextProviders());
                break;
            default:
                $dumper = \in_array(\PHP_SAPI, ['cli', 'phpdbg'], true) ? new CliDumper() : new HtmlDumper();
        }

        if (!$dumper instanceof ServerDumper) {
            $dumper = new ContextualizedDumper($dumper, [new SourceContextProvider()]);
        }

        self::$handler = function D$var, string $label = null) use ($cloner, $dumper) {
            $var = $cloner->cloneVar($var);

use Symfony\Component\VarDumper\Dumper\DataDumperInterface;
use Symfony\Component\VarDumper\Dumper\ServerDumper;

class ServerDumperTest extends TestCase
{
    private const VAR_DUMPER_SERVER = 'tcp://127.0.0.1:9913';

    public function testDumpForwardsToWrappedDumperWhenServerIsUnavailable()
    {
        $wrappedDumper = $this->createMock(DataDumperInterface::class);

        $dumper = new ServerDumper(self::VAR_DUMPER_SERVER, $wrappedDumper);

        $cloner = new VarCloner();
        $data = $cloner->cloneVar('foo');

        $wrappedDumper->expects($this->once())->method('dump')->with($data);

        $dumper->dump($data);
    }

    public function testDump()
    {