Fix tests and enable CI for tests

[mpickering]

In classic @mpickering style, the tests are currently broken. It would be good if someone could fix the build and re-enable them in CI.

[ethercrow]

I fixed the building of tests in #38 but that was the easy part:

102 out of 247 tests failed (372.93s)

[mpickering]

Sounds like a good start at least. I imagine a lot of the tests fail because of changes due to multi-component requiring each cradle to explicitly list targets.

[jneira]

I'll give a try

[jneira]

Well, the first step had been enable tests in azureci for linux and windows.
I had to disable hlint and -WError for both to get it reach running the tests: hls...jneira:wintests, so we should meka them work
It confirms the number of failing tests, same for both os's (nice 😉 ), 101-103: https://dev.azure.com/jneira/haskell-language-server/_build/results?buildId=775&view=results

The are quite fewer failing tests in the hls ghcide submodule version, i suppose it is not updated to last mpickering/hls version

[jneira]

For reference this is the output of cabal test in my windows 10: https://gist.github.com/jneira/7d1048b47205c20eb4f73baea97be8f3

[jneira]

If i run cabal run ghcide-tests instead cabal test there are only seven failing tests:
https://gist.github.com/jneira/7d1048b47205c20eb4f73baea97be8f3#file-test-report-cabal-run-txt

weird 🤔

[mpickering]

^ probably because it is using the version of ghcide on your path.

[jneira]

@mpickering yeah, i forgot about that one (again 🤦‍♂️ )

[jneira]

Hi, not sure if i could resolve the issue in a reasonable amount of time, given my knowledge of ghcide, its test suite and the changes of this branch 😟

I'll post my progresses anyway:

• most tests creates an working remporal dir with no hie.yaml, i suppose that at least upstream ghcide does not need it
• completions: all completions tests are failing and i am not sure why, the server returns an empty list of possible completions in all cases
  • log of cabal test --test-options="-p completion.variable" with lsp messages turned on: https://gist.github.com/jneira/7d1048b47205c20eb4f73baea97be8f3#file-completions-log-txt
• code lenses: all of them failing
• outline: all of them failing
• get.definition: almost all of them failing
• get.hover and get.type definition: all failing
• cradle: all failing