_import('@import url("nonexist.css") supports((display: flex) and (display: block));');
  test_valid_supports_import('@import url("nonexist.css") supports((display: flex) or (display: block));');
  test_valid_supports_import('@import url("nonexist.css") supports((display: flex) or (foo: bar));');
  test_valid_supports_import('@import url("nonexist.css") supports(display: block !important);');

  test_invalid_supports_import('@import url("nonexist.css") layer supports();');
  test_invalid_supports_import('@i