lean4-htt/tests/elab/with_unfolding_none.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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/-!
# Tests for `with_unfolding_none` tactic
The `.none` transparency mode prevents unfolding of all definitions, including reducible ones.
This is stricter than `.reducible`, which unfolds `@[reducible]` definitions.
-/
-- A reducible definition: unfolded by `.reducible` but not by `.none`
@[reducible] def myId (x : Nat) : Nat := x
-- Default transparency can see through myId
example : myId 42 = 42 := by rfl
-- with_unfolding_none blocks even reducible definitions
/--
error: Tactic `rfl` failed: The left-hand side
myId 42
is not definitionally equal to the right-hand side
42
⊢ myId 42 = 42
-/
#guard_msgs in
example : myId 42 = 42 := by
with_unfolding_none rfl