We currently have a lot of .less files in test/test-data/*/less/* that are marked by a .skip.less extension. These are test files copied from less.js that currently fail to be correctly parsed in LesserPHP. Depending on why the test fails different approaches can be used:

• A feature is not supported in LesserPHP
  • The feature could be implemented (see also Add missing functions #2)
  • If the feature is undesired, difficult or impossible to implement, the test can be deleted or adjusted to remove the failing feature
• The parser fails to parse the input correctly
  • The parser could be fixed
  • If the feature is undesired, difficult or impossible to implement, the test can be deleted or adjusted to remove the failing
• The upstream test is not a simple input->output test
  • A custom test could be written to test the same thing
  • The test can be removed or adjusted to be a simple input->output test