Fix missing docs on tests

hugr-core/src/extension.rs

@@ -611,6 +611,7 @@ impl FromIterator<ExtensionId> for ExtensionSet {
     }
 }
 
+/// Extension tests.
 #[cfg(test)]
 pub mod test {
     // We re-export this here because mod op_def is private.

hugr-core/src/extension/op_def.rs

@@ -514,10 +514,12 @@ pub(super) mod test {
         const EXT_ID: ExtensionId = "MyExt";
     }
 
+    /// A dummy wrapper over an operation definition.
     #[derive(serde::Serialize, serde::Deserialize, Debug)]
     pub struct SimpleOpDef(OpDef);
 
     impl SimpleOpDef {
+        /// Create a new dummy opdef.
         pub fn new(op_def: OpDef) -> Self {
             assert!(op_def.constant_folder.is_none());
             assert!(matches!(

hugr-core/src/hugr/serialize/test.rs

@@ -1,3 +1,5 @@
+//! Tests for the HUGR serialization format.
+
 use super::*;
 use crate::builder::{
     endo_sig, inout_sig, test::closed_dfg_root_hugr, Container, DFGBuilder, Dataflow, DataflowHugr,
@@ -182,13 +184,15 @@ pub fn check_hugr_roundtrip(hugr: &Hugr, check_schema: bool) -> Hugr {
     new_hugr
 }
 
+/// Deserialize a HUGR json, ensuring that it is valid against the schema.
 pub fn check_hugr_deserialize(hugr: &Hugr, value: serde_json::Value, check_schema: bool) -> Hugr {
     let new_hugr = ser_deserialize_check_schema(value, get_schemas(check_schema));
 
     check_hugr(hugr, &new_hugr);
     new_hugr
 }
 
+/// Check that two HUGRs are equivalent, up to node renumbering.
 pub fn check_hugr(lhs: &Hugr, rhs: &Hugr) {
     // Original HUGR, with canonicalized node indices
     //

hugr-core/src/proptest.rs

@@ -1,3 +1,5 @@
+//! Generator functions for property testing the Hugr data structures.
+
 use ::proptest::collection::vec;
 use ::proptest::prelude::*;
 use lazy_static::lazy_static;

hugr-core/src/types/custom.rs

@@ -139,7 +139,7 @@ impl From<CustomType> for Type {
 }
 
 #[cfg(test)]
-pub mod test {
+mod test {
 
     pub mod proptest {
         use crate::extension::ExtensionId;

hugr-core/tests/model.rs

@@ -1,3 +1,5 @@
+#![allow(missing_docs)]
+
 use hugr::std_extensions::std_reg;
 use hugr_core::{export::export_hugr, import::import_hugr};
 use hugr_model::v0 as model;

hugr-model/tests/binary.rs

@@ -1,3 +1,5 @@
+#![allow(missing_docs)]
+
 use bumpalo::Bump;
 use hugr_model::v0 as model;
 use pretty_assertions::assert_eq;

hugr-model/tests/text.rs

@@ -1,3 +1,5 @@
+#![allow(missing_docs)]
+
 use hugr_model::v0 as model;
 
 fn roundtrip(source: &str) -> String {