Error "case_of_ must be fully applied to a lambda term in "Generate test-suite HTML" CI action

[jespercockx]

Currently CI fails due to a strange error in test/Fail/PartialCase.agda:

Generating HTML for AllFailTests (html/AllFailTests.html).
/home/runner/work/agda2hs/agda2hs/test/Fail/PartialCase.agda:5.1-7: error: [CustomBackendError]
agda2hs: case_of_ must be fully applied to a lambda term
make[1]: *** [Makefile:54: html/AllFailTests.html] Error 42
make[1]: Leaving directory '/home/runner/work/agda2hs/agda2hs/test'
make: *** [Makefile:30: testHtml] Error 2
Error: Process completed with exit code 2.

Failing run: https://github.com/agda/agda2hs/actions/runs/18348868257/job/52262916249

I'm not sure what's going on here. Why are we generating HTML from the test suite in the first place? Why do we still try to generate Haskell code when generating HTML? Why did this ever work before?

[omelkonian]

I had implemented this rendering inspired by how agda2rust does it, that's why you are seeing Haskell/HTML generation of the test suite.

Indeed now the link is broken in the docs* and I'm quite sure it used to work both for successful and failing test cases. Any initial pointers on when this could have possibly been broken originally?

*maybe we should have some checks for these basic things akin to PLFA (although that involves Ruby scripts IIRC 😞)