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tests: defer tc roundtrip fixtures #549

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Merged
arthurpaulino merged 1 commit into from
Aug 12, 2026
Merged

tests: defer tc roundtrip fixtures #549

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12 changes: 9 additions & 3 deletions Tests/Ix/Tc/Roundtrip.lean
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Original file line number Diff line number Diff line change
Expand Up @@ -79,11 +79,17 @@ def fixtureTests : TestSeq := Id.run do
("shared subterms", envShare.1),
("mutual defs block", envMutualDefs.1),
("inductive block", envInductive.1) ]
/- Defer a pure computation until the returned IO action is executed.
A plain `pure (f ())` is strict enough for Lean to run `f` while the
surrounding `TestSeq` is constructed. -/
let deferIO := fun f s => .ok (f ()) s
let mut ts : TestSeq := .done
for (label, env) in cases do
let (rows, err?) := roundtripAll env
let msg := match err? with | some e => s!" — {e}" | none => ""
ts := ts ++ test s!"roundtrip fixture: {label} ({rows} rows){msg}" err?.isNone
let testIO := deferIO fun () =>
let (rows, err?) := roundtripAll env
let msg := err?.map fun e => s!"{rows} rows — {e}"
(err?.isNone, 0, 1, msg)
ts := ts ++ .individualIO s!"roundtrip fixture: {label}" none testIO .done
return ts

open Tests.Tc.Fixtures in
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