* Update tests.md
Spelled out that tests will not run without running UpdateModule.py first and including a link to the instructions on how to do that.
* Applied black-silver's feedback and also I ran into tests that don't run correctly unless you also have run Webhost.py once. I have included that in the documentation as well.
* More black-silver feedback.
* Tests: unroll test_multiworlds.TestTwoPlayerMulti
Also adds a helper function that other tests can use to unroll tests.
* Docs: add more details to docs/tests.md
* Explain parametrization, subtests and link to the new helper
* Mention some performance details and work-arounds
* Mention multithreading / pytest-xdist
* Tests: make param.classvar_matrix accept sets
* CI: add test/param.py to type checking
* Tests: add missing typing to test/param.py
* Tests: fix typo in test/param.py doc comment
Co-authored-by: qwint <qwint.42@gmail.com>
* update docs
* Docs: reword note on performance
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Co-authored-by: qwint <qwint.42@gmail.com>
