Update CommonMark test to 0.30

[vinicius73]

Now it is used 0.28 (2017-08-01) version of CommonMark Spec in tests.
But there are two new releases
Actually the last version is 0.30, and this is supported by markdown-it

I've tried a fast update, but some tests failed.

Also, do we really need to test it? markdown-it already test it.

[juliusknorr]

Actually 0.29 should currently be in use d7de7d9

The reason those tests were added is mainly because text does multiple conversion steps

• markdown to html
• html to json to fit into the prose mirror schema
• prose mirror to markdown

The tests were mainly to ensure that with those different intermediate steps, we still stick to the expected format. https://github.com/nextcloud/text/blob/master/src/tests/markdown.spec.js#L25-L49

There were some test failures last time only due to additional whitespace which were skipped in the linked spec file, so might be worth to have a look at the actual failures if those are also related to that or something more serious.

[vinicius73]

Thanks for the explanation @juliushaertl
I will take a close look at it when I can.

[susnux]

The tests were mainly to ensure that with those different intermediate steps, we still stick to the expected format. https://github.com/nextcloud/text/blob/master/src/tests/markdown.spec.js#L25-L49

But the commonmark tests only test markdown-it, they do no test the markdown->html->markdown pipeline, that would require using markdownThroughEditor. So they are not that useful as markdown-it tests for commonmark itself.

[julien-nc]

Any news on that? @vinicius73 Do you still feel it's worth updating? If not, let's close this.