assertXmlStringEqualsXmlFile example

protected static string $fixturesPath;

    public static function setUpBeforeClass(): void
    {
        self::$fixturesPath = realpath(__DIR__.'/../Fixtures/');
    }

    public function testDump()
    {
        $dumper = new XmlDumper(new ContainerBuilder());

        $this->assertXmlStringEqualsXmlFile(self::$fixturesPath.'/xml/services1.xml', $dumper->dump(), '->dump() dumps an empty container as an empty XML file');
    }

    public function testExportParameters()
    {
        $container = include self::$fixturesPath.'//containers/container8.php';
        $dumper = new XmlDumper($container);
        $this->assertXmlStringEqualsXmlFile(self::$fixturesPath.'/xml/services8.xml', $dumper->dump(), '->dump() dumps parameters');
    }

    public function testAddService()
    {