lean4-htt/tests/elab/decEq.lean
Garmelon 08eb78a5b2
chore: switch to new test/bench suite (#12590)
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.
2026-02-25 13:51:53 +00:00

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module
inductive Vec (α : Type u) : Nat → Type u
| nil : Vec α 0
| cons : α → {n : Nat} → Vec α n → Vec α (n+1)
deriving DecidableEq
inductive Test (α : Type)
| mk₀
| mk₁ : (n : Nat) → (α × α) → List α → Vec α n → Test α
| mk₂ : Test αα → Test α
deriving DecidableEq
def t1 [DecidableEq α] : DecidableEq (Vec α n) :=
inferInstance
def t2 [DecidableEq α] : DecidableEq (Test α) :=
inferInstance
/-! Public structures should yield public instances independent of `public section`. -/
public inductive PubEnum where
| a | b
deriving DecidableEq
/-- info: decide (PubEnum.b = PubEnum.b) : Bool -/
#guard_msgs in
#with_exporting
#check decide (PubEnum.b = PubEnum.b)
public inductive PubInd where
| a (n : Nat) | b
deriving DecidableEq
/--
info: Decidable.rec (fun h => false) (fun h => true) (instDecidableEqPubInd.decEq PubInd.b PubInd.b)
-/
#guard_msgs in
#with_exporting
#reduce decide (PubInd.b = PubInd.b)
public inductive PubExpInd where
| a (n : Nat) | b
deriving @[expose] DecidableEq
/-- info: true -/
#guard_msgs in
#with_exporting
#reduce decide (PubExpInd.b = PubExpInd.b)