Tests with $ sign are missing

[wertzui]

The spec states

The expression syntax specifically excludes use of the dollar ("$")
and parentheses ["(" and ")"] characters so that they remain
available for use outside the scope of this specification.

I've come across an implementation at https://github.com/tavis-software/Tavis.UriTemplates that is using this test suite and does throw when it encounter a parameter with a $ sign, like this one that could be an OData endpoint:

https://example.com/{?$filter,$orderby,$top,$skip}

[sigmavirus24]

Do they run the negative tests?

uritemplate-test/negative-tests.json

Line 36 in 1eb27ab

[ "{$var}", false ],