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.)
24 lines
652 B
Text
24 lines
652 B
Text
--
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set_option trace.Meta.Tactic.subst true
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theorem tst1 (x y z : Nat) : y = z → x = x → x = y → x = z := by
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intros h1 h2 h3
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subst x
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assumption
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theorem tst2 (x y z : Nat) : y = z → x = z + y → x = z + z := by
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intros h1 h2
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subst h1
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subst h2
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exact rfl
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def BV (n : Nat) : Type := { a : Array Bool // a.size = n }
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theorem tst3 (n m : Nat) (v : BV n) (w : BV m) (h1 : n = m) (h2 : forall (v1 v2 : BV n), v1 = v2) : v = cast (congrArg BV h1.symm) w := by
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subst h1
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apply h2
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theorem tst4 (n m : Nat) (v : BV n) (w : BV m) (h1 : n = m) (h2 : forall (v1 v2 : BV n), v1 = v2) : v = cast (congrArg BV h1.symm) w := by
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subst n
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apply h2
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