sw_escape_filter example

"\n" => '\\A ',
        "\t" => '\\9 ',
        "\0" => '\\0 ',
        /* Encode spaces for quoteless attribute protection */
        ' ' => '\\20 ',
    ];

    public function testHtmlEscapingConvertsSpecialChars(): void
    {
        $twig = new Environment($this->createMock(LoaderInterface::class));
        foreach ($this->htmlSpecialChars as $key => $value) {
            static::assertEquals($value, sw_escape_filter($twig, $key), 'Failed to escape: ' . $key);
        }
    }

    public function testHtmlAttributeEscapingConvertsSpecialChars(): void
    {
        $twig = new Environment($this->createMock(LoaderInterface::class));
        foreach ($this->htmlAttrSpecialChars as $key => $value) {
            static::assertEquals($value, sw_escape_filter($twig, $key, 'html_attr'), 'Failed to escape: ' . $key);
        }
    }