lean4-htt/tests/elab/versoDocMetadata.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

111 lines
3.9 KiB
Text

import Lean.Elab.Command
import Lean.Elab.DocString.Builtin
set_option doc.verso true
/-!
# Tests for Verso Docstring Metadata
These tests ensure that the right information is being saved for Verso docstrings by the builtin
elaborators.
-/
/-!
## Infrastructure
First, some test infrastructure for checking docstring contents.
-/
section
open Lean Elab Command Term
partial def containsMetadataMatchingInline [Monad m] (inline : Doc.Inline ElabInline) (p : Dynamic → m Bool) : m Bool :=
match inline with
| .text .. | .image .. | .linebreak .. | .math .. | .code .. => pure false
| .concat xs | .bold xs | .emph xs | .link xs _ | .footnote _ xs => xs.anyM (containsMetadataMatchingInline · p)
| .other container content =>
p container.val <||> content.anyM (containsMetadataMatchingInline · p)
partial def containsMetadataMatchingBlock [Monad m] (block : Doc.Block ElabInline ElabBlock) (p : Dynamic → m Bool) : m Bool :=
match block with
| .code .. => pure false
| .concat xs | .blockquote xs => xs.anyM (containsMetadataMatchingBlock · p)
| .ol _ items | .ul items =>
items.anyM fun ⟨bs⟩ => bs.anyM (containsMetadataMatchingBlock · p)
| .dl items =>
items.anyM fun ⟨dt, dd⟩ =>
dt.anyM (containsMetadataMatchingInline · p) <||> dd.anyM (containsMetadataMatchingBlock · p)
| .para xs => xs.anyM (containsMetadataMatchingInline · p)
| .other container content =>
p container.val <||> content.anyM (containsMetadataMatchingBlock · p)
partial def containsMetadataMatchingPart [Monad m] (part : Doc.Part ElabInline ElabBlock Empty) (p : Dynamic → m Bool) : m Bool :=
part.title.anyM (containsMetadataMatchingInline · p) <||>
part.content.anyM (containsMetadataMatchingBlock · p) <||>
part.subParts.anyM (containsMetadataMatchingPart · p)
def containsMetadataMatching [Monad m] (docs : VersoDocString) (p : Dynamic → m Bool) : m Bool :=
docs.text.anyM (containsMetadataMatchingBlock · p) <||>
docs.subsections.anyM (containsMetadataMatchingPart · p)
syntax (name := check) "#verso_docs_contain " ident " where " term : command
@[command_elab check]
unsafe def elabChecker : CommandElab := fun
| `(command|#verso_docs_contain $name:ident where $predicate:term) => withoutModifyingEnv do
let env ← getEnv
let n ← runTermElabM fun _ => mkFreshUserName `pred
elabCommand <| ← `(def $(mkIdent n) : Dynamic → TermElabM Bool := $predicate)
let pred ← evalConst (Dynamic → TermElabM Bool) n
let declName ← runTermElabM fun _ => do realizeGlobalConstNoOverloadWithInfo name
let verso ←
match (← findInternalDocString? env declName (includeBuiltin := true)) with
| some (.inl ..) => throwError m!"`{.ofConstName declName}` has a Markdown docstring"
| some (.inr verso) => pure verso
| none => throwError m!"`{.ofConstName declName}` has no docstring"
if ← runTermElabM fun _ => containsMetadataMatching verso pred then
pure ()
else
throwError "No metadata satisfied the predicate"
| _ => throwUnsupportedSyntax
/-!
## Tests
Here, we test the expected metadata for code blocks and inline elements.
-/
/--
```lean
def y := x
```
-/
def x := ()
#verso_docs_contain x where fun y => do
if let some v := y.get? Doc.Data.LeanBlock then
let hasDef := v.commands.code.any fun x =>
x.1 == "def" && x.2 matches some .keyword
let hasY := v.commands.code.any fun x =>
x.1 == "y" && x.2 matches some (.const ..)
let hasX := v.commands.code.any fun x =>
x.1 == "x" && x.2 matches some (.const ``x ..)
pure <| hasDef && hasY && hasX
else
pure false
/--
{lean}`foo x`
-/
def foo (x : Nat) := Nat.succ x
#verso_docs_contain foo where fun y => do
if let some v := y.get? Doc.Data.LeanTerm then
let hasFoo := v.term.code.any fun x =>
x.1 == "foo" && x.2 matches some (.const ``foo ..)
let hasX := v.term.code.any fun x =>
x.1 == "x" && x.2 matches some (.var `x ..)
pure <| hasFoo && hasX
else
pure false