08eb78a5b2
This PR sets up the new integrated test/bench suite. It then migrates all benchmarks and some related tests to the new suite. There's also some documentation and some linting. For now, a lot of the old tests are left alone so this PR doesn't become even larger than it already is. Eventually, all tests should be migrated to the new suite though so there isn't a confusing mix of two systems.
48 lines
1.6 KiB
Text
48 lines
1.6 KiB
Text
structure Foo where num : Nat deriving DecidableEq
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namespace Foo
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instance : OfNat Foo n := ⟨⟨n⟩⟩
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/-! # Example 1 -/
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@[irreducible] def mul (a b : Foo) : Foo :=
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let d := Nat.gcd a.num 1
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⟨(a.num.div d) * (b.num.div d)⟩
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-- should fail fast; exact heartbeat count at time of writing is 31
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set_option maxHeartbeats 310
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/--
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error: Tactic `decide` failed for proposition
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((mul 4 1).mul 1).mul 1 = 4
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because its `Decidable` instance
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instDecidableEqFoo (((mul 4 1).mul 1).mul 1) 4
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did not reduce to `isTrue` or `isFalse`.
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After unfolding the instances `instDecidableEqFoo`, `instDecidableEqNat`, `Nat.decEq`, and `instDecidableEqFoo.decEq`, reduction got stuck at the `Decidable` instance
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match h : (((mul 4 1).mul 1).mul 1).num.beq 4 with
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| true => isTrue ⋯
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| false => isFalse ⋯
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-/
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#guard_msgs in
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example : ((Foo.mul 4 1).mul 1).mul 1 = 4 := by decide
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/-! # Example 2 -/
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@[irreducible] def add (a b : Foo) : Foo := ⟨a.num * b.num⟩
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-- should not succeed (and fail fast); exact heartbeat count at time of writing is 21
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/--
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error: Tactic `decide` failed for proposition
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((add 4 1).add 1).add 1 = 4
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because its `Decidable` instance
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instDecidableEqFoo (((add 4 1).add 1).add 1) 4
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did not reduce to `isTrue` or `isFalse`.
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After unfolding the instances `instDecidableEqFoo`, `instDecidableEqNat`, `Nat.decEq`, and `instDecidableEqFoo.decEq`, reduction got stuck at the `Decidable` instance
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match h : (((add 4 1).add 1).add 1).num.beq 4 with
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| true => isTrue ⋯
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| false => isFalse ⋯
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-/
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#guard_msgs in
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example : ((Foo.add 4 1).add 1).add 1 = 4 := by decide
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