3a457e6ad6
Many of our tests in `tests/lean/run/` produce output from `#eval` (or `#check`) statements, that is then ignored. This PR tries to capture all the useful output using `#guard_msgs`. I've only done a cursory check that the output is still sane --- there is a chance that some "unchecked" tests have already accumulated regressions and this just cements them! In the other direction, I did identify two rotten tests: * a minor one in `setStructInstNotation.lean`, where a comment says `Set Nat`, but `#check` actually prints `?_`. Weird? * `CompilerProbe.lean` is generating empty output, apparently indicating that something is broken, but I don't know the signficance of this file. In any case, I'll ask about these elsewhere. (This started by noticing that a recent `grind` test file had an untested `trace_state`, and then got carried away.)
33 lines
607 B
Text
33 lines
607 B
Text
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class Inc (α : Type) :=
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(inc : α → α)
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export Inc (inc)
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instance {α} [Inc α] : Inc (List α) :=
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{ inc := (·.map inc) }
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instance : Inc Nat :=
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{ inc := Nat.succ }
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#guard inc 10 == 11
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#guard inc [1, 2, 3] == [2, 3, 4]
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theorem ex1 : [(1, "hello"), (2, "world")].map (·.1) = [1, 2] :=
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rfl
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theorem ex2 : [(1, "hello"), (2, "world")].map (·.snd) = ["hello", "world"] :=
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rfl
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def sum (xs : List Nat) : Nat :=
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(·.2) $ Id.run $ StateT.run (s:=0) do
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xs.forM fun x => modify (· + x)
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#guard sum [1, 2, 3, 4] == 10
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theorem ex3 : sum [1, 2, 3] = 6 :=
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rfl
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theorem ex4 : sum [1, 2, 3, 4] = 10 :=
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rfl
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