feat: add the Errata test framework - #956
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david-christiansen wants to merge 5 commits into
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Errata is a test framework, designed to be something we can extract to its own repo after we get some experience with it here (so it can be used e.g. in verso-slides and lean-sqlite). In Errata, tests are marked by the `@[test]` attribute. Their docstring and source range are saved for failure reporting. The value of a test can have any type with an `IsTest` instance. Some machinery in the Lakefile enumerates all tests, providing them to the runner. Elaboration-time tests can also be implemented using `#test_msgs` and `#test_guard`, which are versions of `#guard_msgs` and `#guard` that run the compile-time test but save the result as a test case for reporting together with the rest of the tests. Errata also supports saving JUnit XML, which various GitHub actions can conveniently display for us.
Migrate command-line parsing to Cli and improve verbosity settings RE success/failure
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Errata is a test framework, designed to be something we can extract to its own repo after we get some experience with it here (so it can be used e.g. in verso-slides and lean-sqlite).
In Errata, tests are marked by the
@[test]attribute. Their docstring and source range are saved for failure reporting. The value of a test can have any type with anIsTestinstance. Some machinery in the Lakefile enumerates all tests, providing them to the runner.Elaboration-time tests can also be implemented using
#test_msgsand#test_guard, which are versions of#guard_msgsand#guardthat run the compile-time test but save the result as a test case for reporting together with the rest of the tests.Errata also supports saving JUnit XML, which various GitHub actions can conveniently display for us.