Pantograph/Test/Tactic/NoConfuse.lean

101 lines
3.5 KiB
Plaintext
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

import LSpec
import Lean
import Test.Common
open Lean
open Pantograph
namespace Pantograph.Test.Tactic.NoConfuse
def valueAndType (recursor: String): MetaM (Expr × Expr) := do
let recursor ← match Parser.runParserCategory
(env := ← MonadEnv.getEnv)
(catName := `term)
(input := recursor)
(fileName := filename) with
| .ok syn => pure syn
| .error error => throwError "Failed to parse: {error}"
runTermElabMInMeta do
let recursor ← Elab.Term.elabTerm (stx := recursor) .none
let recursorType ← Meta.inferType recursor
return (recursor, recursorType)
def test_nat (env: Environment): IO LSpec.TestSeq :=
let expr := "λ (n: Nat) (h: 0 = n + 1) => False"
runMetaMSeq env do
let (expr, exprType) ← valueAndType expr
Meta.lambdaTelescope expr $ λ _ body => do
let recursor ← match Parser.runParserCategory
(env := ← MonadEnv.getEnv)
(catName := `term)
(input := "h")
(fileName := filename) with
| .ok syn => pure syn
| .error error => throwError "Failed to parse: {error}"
let mut tests := LSpec.TestSeq.done
-- Apply the tactic
let target ← Meta.mkFreshExprSyntheticOpaqueMVar body
let tactic := Tactic.noConfuse recursor
let test ← runTermElabMInMeta do
let newGoals ← runTacticOnMVar tactic target.mvarId!
pure $ LSpec.check "goals" ((← newGoals.mapM (λ g => do exprToStr (← g.getType))) =
[])
tests := tests ++ test
return tests
def test_nat_fail (env: Environment): IO LSpec.TestSeq :=
let expr := "λ (n: Nat) (h: n = n) => False"
runMetaMSeq env do
let (expr, _) ← valueAndType expr
Meta.lambdaTelescope expr $ λ _ body => do
let recursor ← match Parser.runParserCategory
(env := ← MonadEnv.getEnv)
(catName := `term)
(input := "h")
(fileName := filename) with
| .ok syn => pure syn
| .error error => throwError "Failed to parse: {error}"
let mut tests := LSpec.TestSeq.done
-- Apply the tactic
let target ← Meta.mkFreshExprSyntheticOpaqueMVar body
try
let tactic := Tactic.noConfuse recursor
let _ ← runTermElabMInMeta $ runTacticOnMVar tactic target.mvarId!
tests := tests ++ assertUnreachable "Tactic should fail"
catch _ =>
tests := tests ++ LSpec.check "Tactic should fail" true
return tests
return tests
def test_list (env: Environment): IO LSpec.TestSeq :=
let expr := "λ (l: List Nat) (h: [] = 1 :: l) => False"
runMetaMSeq env do
let (expr, exprType) ← valueAndType expr
Meta.lambdaTelescope expr $ λ _ body => do
let recursor ← match Parser.runParserCategory
(env := ← MonadEnv.getEnv)
(catName := `term)
(input := "h")
(fileName := filename) with
| .ok syn => pure syn
| .error error => throwError "Failed to parse: {error}"
let mut tests := LSpec.TestSeq.done
-- Apply the tactic
let target ← Meta.mkFreshExprSyntheticOpaqueMVar body
let tactic := Tactic.noConfuse recursor
let test ← runTermElabMInMeta do
let newGoals ← runTacticOnMVar tactic target.mvarId!
pure $ LSpec.check "goals" ((← newGoals.mapM (λ g => do exprToStr (← g.getType))) =
[])
tests := tests ++ test
return tests
def suite (env: Environment): List (String × IO LSpec.TestSeq) :=
[
("Nat", test_nat env),
("Nat fail", test_nat_fail env),
("List", test_list env),
]
end Pantograph.Test.Tactic.NoConfuse