render template that it is contains one '\r\n' string will return more than one

从报告中所示的 Jinjava 渲染调用和 withLstripBlocks(true)/withTrimBlocks(true) 配置开始。使用已设置的三个变量重现 CRLF 模板，然后跟踪块裁剪如何处理 '\r\n'；为渲染结果中预期的行间距添加回归测试。

render method with config withLstripBlocks(true).withTrimBlocks(true)

public static String render(String template, Map<String,Object> params) {
        final JinjavaConfig config = JinjavaConfig
                .newBuilder()
                .withLstripBlocks(true).withTrimBlocks(true).build();
        final Jinjava jinjava = new Jinjava(config);
        final JinjavaInterpreter jinjavaInterpreter = jinjava.newInterpreter();
        jinjavaInterpreter.getContext().putAll(params);
        final String renderStr = jinjavaInterpreter.render(jinjavaInterpreter.parse(template));
        return renderStr;
 }

test code:

  
         String template = "{% if bootefiDev %}\r\n" +
                "part /boot/efi --fstype=\"efi\" --size=500 --ondisk={{ bootefiDev }}\r\n" +
                "{% endif %}\r\n" +
                "{% if bootDev %}\r\n" +
                "part /boot --fstype ext4 --size=2048 --ondisk={{ bootDev }}\r\n" +
                "{% endif %}\r\n" +
                "{% if rootDev %}\r\n" +
                "part / --fstype ext4 --size=1 --grow  --ondisk={{ rootDev }}\r\n" +
                "{% endif %}\r\n";
        Map<String,Object> param = new HashMap<>();
        param.put("bootefiDev","sda");
        param.put("bootDev","sda");
        param.put("rootDev","sda");
        System.out.println(render(template,param));
 

and then i will get a render result below:

part /boot/efi --fstype="efi" --size=500 --ondisk=sda


part /boot --fstype ext4 --size=2048 --ondisk=sda


part / --fstype ext4 --size=1 --grow  --ondisk=sda