codepointToUtf8 example

/** * Only testing the first few 2 ranges on this prot. function as that's all these * other range tests require. */
    public function testUnicodeCodepointConversionToUtf8(): void
    {
        $expected = ' ~ޙ';
        $codepoints = [0x20, 0x7E, 0x799];
        $result = '';
        foreach ($codepoints as $value) {
            $result .= $this->codepointToUtf8($value);
        }
        static::assertEquals($expected, $result);
    }

    public function testJavascriptEscapingEscapesOwaspRecommendedRanges(): void
    {
        $twig = new Environment($this->createMock(LoaderInterface::class));
        $immune = [',', '.', '_']; // Exceptions to escaping ranges         for ($chr = 0; $chr < 0xFF; ++$chr) {
            if ($chr >= 0x30 && $chr <= 0x39
                || $chr >= 0x41 && $chr <= 0x5A