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.
38 lines
984 B
Text
38 lines
984 B
Text
structure Date where
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val : Nat
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deriving Repr
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instance : LE Date := ⟨InvImage (Nat.le) Date.val⟩
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instance bad (a b : Date) : Decidable (a <= b) :=
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if h0 : (a.val <= b.val) then isTrue h0 else isFalse (fun hf => False.elim (h0 hf))
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instance : Min Date := minOfLe
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/-
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This implementation also fails:
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instance (a b : Date) : Decidable (a <= b) :=
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inferInstanceAs (Decidable (a.val <= b.val))
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-/
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/-
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This implementation evaluates successfully:
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instance (a b : Date) : Decidable (a <= b) :=
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dite (a.val <= b.val) isTrue (fun nle => isFalse (fun hf => False.elim (nle hf)))
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-/
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instance : ToString Date where
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toString d := s!"D{d.val}"
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structure DateRange where
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start_ : Date
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finish_ : Date
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h : start_ <= finish_
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def r1 := (DateRange.mk (Date.mk 0) (Date.mk 10) (by decide))
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-- If you change the start_ value here to `0`, it works.
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def r2 := (DateRange.mk (Date.mk 1) (Date.mk 10) (by decide))
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/-- info: { val := 0 } -/
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#guard_msgs in
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#eval min r1.start_ r2.start_
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