Pantograph/Test/Delate.lean

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import LSpec
import Pantograph.Delate
import Test.Common
import Lean
open Lean
namespace Pantograph.Test.Delate
open Pantograph
deriving instance Repr, DecidableEq for Protocol.BoundExpression
def test_serializeName: LSpec.TestSeq :=
let quote := "\""
let escape := "\\"
LSpec.test "a.b.1" (serializeName (Name.num (.str (.str .anonymous "a") "b") 1) = "a.b.1") ++
LSpec.test "seg.«a.b»" (serializeName (Name.str (.str .anonymous "seg") "a.b") = s!"{quote}seg.«a.b»{quote}") ++
-- Pathological test case
LSpec.test s!"«̈{escape}{quote}»" (serializeName (Name.str .anonymous s!"{escape}{quote}") = s!"{quote}«{escape}{quote}»{quote}")
def test_expr_to_binder (env: Environment): IO LSpec.TestSeq := do
let entries: List (Name × Protocol.BoundExpression) := [
("Nat.add_comm".toName, { binders := #[("n", "Nat"), ("m", "Nat")], target := "n + m = m + n" }),
("Nat.le_of_succ_le".toName, { binders := #[("n", "Nat"), ("m", "Nat"), ("h", "n.succ ≤ m")], target := "n ≤ m" })
]
runCoreMSeq env $ entries.foldlM (λ suites (symbol, target) => do
let env ← MonadEnv.getEnv
let expr := env.find? symbol |>.get! |>.type
let test := LSpec.check symbol.toString ((← typeExprToBound expr) = target)
return LSpec.TestSeq.append suites test) LSpec.TestSeq.done |>.run'
def test_sexp_of_symbol (env: Environment): IO LSpec.TestSeq := do
let entries: List (String × String) := [
-- This one contains unhygienic variable names which must be suppressed
("Nat.add", "(:forall a (:c Nat) (:forall a (:c Nat) (:c Nat)))"),
-- These ones are normal and easy
("Nat.add_one", "(:forall n (:c Nat) ((:c Eq) (:c Nat) ((:c HAdd.hAdd) (:c Nat) (:c Nat) (:c Nat) ((:c instHAdd) (:c Nat) (:c instAddNat)) 0 ((:c OfNat.ofNat) (:c Nat) (:lit 1) ((:c instOfNatNat) (:lit 1)))) ((:c Nat.succ) 0)))"),
("Nat.le_of_succ_le", "(:forall n (:c Nat) (:forall m (:c Nat) (:forall h ((:c LE.le) (:c Nat) (:c instLENat) ((:c Nat.succ) 1) 0) ((:c LE.le) (:c Nat) (:c instLENat) 2 1)) :implicit) :implicit)"),
-- Handling of higher order types
("Or", "(:forall a (:sort 0) (:forall b (:sort 0) (:sort 0)))"),
("List", "(:forall α (:sort (+ u 1)) (:sort (+ u 1)))")
]
runMetaMSeq env $ entries.foldlM (λ suites (symbol, target) => do
let env ← MonadEnv.getEnv
let expr := env.find? symbol.toName |>.get! |>.type
let test := LSpec.check symbol ((← serializeExpressionSexp expr) = target)
return LSpec.TestSeq.append suites test) LSpec.TestSeq.done
def test_sexp_of_elab (env: Environment): IO LSpec.TestSeq := do
let entries: List (String × (List Name) × String) := [
("λ x: Nat × Bool => x.1", [], "(:lambda x ((:c Prod) (:c Nat) (:c Bool)) ((:c Prod.fst) (:c Nat) (:c Bool) 0))"),
("λ x: Array Nat => x.data", [], "(:lambda x ((:c Array) (:c Nat)) ((:c Array.data) (:c Nat) 0))"),
("λ {α: Sort (u + 1)} => List α", [`u], "(:lambda α (:sort (+ u 1)) ((:c List) 0) :implicit)"),
("λ {α} => List α", [], "(:lambda α (:sort (+ (:mv _uniq.4) 1)) ((:c List) 0) :implicit)"),
("(2: Nat) <= (5: Nat)", [], "((:c LE.le) (:mv _uniq.18) (:mv _uniq.19) ((:c OfNat.ofNat) (:mv _uniq.4) (:lit 2) (:mv _uniq.5)) ((:c OfNat.ofNat) (:mv _uniq.14) (:lit 5) (:mv _uniq.15)))"),
]
entries.foldlM (λ suites (source, levels, target) =>
let termElabM := do
let env ← MonadEnv.getEnv
let s ← match parseTerm env source with
| .ok s => pure s
| .error e => return parseFailure e
let expr ← match (← elabTerm s) with
| .ok expr => pure expr
| .error e => return elabFailure e
return LSpec.check source ((← serializeExpressionSexp expr) = target)
let metaM := (Elab.Term.withLevelNames levels termElabM).run' (ctx := defaultElabContext)
return LSpec.TestSeq.append suites (← runMetaMSeq env metaM))
LSpec.TestSeq.done
def test_sexp_of_expr (env: Environment): IO LSpec.TestSeq := do
let entries: List (Expr × String) := [
(.lam `p (.sort .zero)
(.lam `q (.sort .zero)
(.lam `k (mkApp2 (.const `And []) (.bvar 1) (.bvar 0))
(.proj `And 1 (.bvar 0))
.default)
.implicit)
.implicit,
"(:lambda p (:sort 0) (:lambda q (:sort 0) (:lambda k ((:c And) 1 0) ((:c And.right) _ _ 0)) :implicit) :implicit)"
),
]
let termElabM: Elab.TermElabM LSpec.TestSeq := entries.foldlM (λ suites (expr, target) => do
let env ← MonadEnv.getEnv
let testCaseName := target.take 10
let test := LSpec.check testCaseName ((← serializeExpressionSexp expr) = target)
return LSpec.TestSeq.append suites test) LSpec.TestSeq.done
runMetaMSeq env $ termElabM.run' (ctx := defaultElabContext)
-- Instance parsing
def test_instance (env: Environment): IO LSpec.TestSeq :=
runMetaMSeq env do
let env ← MonadEnv.getEnv
let source := "λ x y: Nat => HAdd.hAdd Nat Nat Nat (instHAdd Nat instAddNat) x y"
let s := parseTerm env source |>.toOption |>.get!
let _expr := (← runTermElabMInMeta <| elabTerm s) |>.toOption |>.get!
return LSpec.TestSeq.done
def suite (env: Environment): List (String × IO LSpec.TestSeq) :=
[
("serializeName", do pure test_serializeName),
("Expression binder", test_expr_to_binder env),
("Sexp from symbol", test_sexp_of_symbol env),
("Sexp from elaborated expr", test_sexp_of_elab env),
("Sexp from expr", test_sexp_of_expr env),
("Instance", test_instance env),
]
end Pantograph.Test.Delate