mc.relevantKeys = new LinkedHashSet<SyntheticAttributeKey<?>>(
Arrays.<SyntheticAttributeKey<?>>asList(
CssValidator.CSS_PROPERTY_PART_TYPE,
CssValidator.CSS_PROPERTY_PART));
StringBuilder sb = new StringBuilder();
cssTree.format(mc, sb);
if (golden != null) {
assertEquals(css, golden.trim(), sb.toString().trim());
}
List<String> actualWarnings = Lists.newArrayList();