<===> input.scss
a {/**/}
b {content: 'something so I have a non-empty expected output'}
<===> output.css
a {
  /**/
}

b {
  content: 'something so I have a non-empty expected output';
}

<===> output-dart-sass.css
a {
  /**/
}

b {
  content: "something so I have a non-empty expected output";
}