lean4-htt/tests/elab/replace_tac.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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/-
Copyright (c) 2022 Arthur Paulino. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Arthur Paulino
-/
example (h : Int) : Nat := by
replace h : Nat := 0
exact h
example (h : Nat) : Nat := by
have h : Int := 0
assumption -- original `h` is not absent but...
example (h : Nat) : Nat := by
replace h : Int := 0
fail_if_success assumption -- original `h` is absent now
replace h : Nat := 0
exact h
-- tests with `this`
example : Nat := by
have : Int := 0
replace : Nat := 0
assumption
example : Nat := by
have : Nat := 0
have : Int := 0
assumption -- original `this` is not absent but...
example : Nat := by
have : Nat := 0
replace : Int := 0
fail_if_success assumption -- original `this` is absent now
replace : Nat := 0
assumption
-- trying to replace the type of a variable when the goal depends on it
example {a : Nat} : a = a := by
replace a : Int := 0
have : Nat := by assumption -- old `a` is not gone
have : Int := by exact a -- new `a` is of type `Int`
simp