Fix lutaml-express-index command specs

[ronaldtse]

The remaining specs are really broken, they are due to the lutaml-express-index command not working.

Originally posted by @ronaldtse in #84 (comment)

[ronaldtse]

See https://github.com/metanorma/metanorma-plugin-lutaml/runs/8152808834?check_suite_focus=true#step:6:794

[opoudjis]

I need the dependency on metanorma removed, and the spec files need to be moved to metanorma-standoc, to remove the circular dependency in this gem.

I have no idea how this gem works, and I have spent two hours trying to work it out. So:

In spec/spec_helper.rb, you are to replace metanorma_process.rb with:

def metanorma_process(input)
  Asciidoctor.convert(input, backend: :standoc, header_footer: true,
                             agree_to_terms: true, to_file: false, safe: :safe,
                             attributes: ["nodoc", "stem", "xrefstyle=short",
                                          "docfile=test.adoc",
                                          "output_dir="])
end

and remove the dependency on the metanorma gem.

Once you have got the specs working, those specs with depend on metanorma-standoc to run (anything involving metanorma_process) need to be migrated to the metanorma-standoc gem, so that this gem no longer has a dependency on metanorma-standoc. (metanorma-standoc already depends on this gem.)

When you do this, I will require spec/fixtures to be migrated to spec/fixtures/lutaml, rather than mixing it in with the existing files of metanorma-standoc spec/fixtures. You will also need to rewrite any spec/fixtures paths to spec/fixtures/lutaml in the test files.

I have uploaded where I got to as the PR "migrate": #90

[ronaldtse]

This issue indeed needs to be fixed. The PR to fix this is #91, please have the fixes implemented there. Thanks.