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Klaus Landsdorf
c189cd6fcb
# Description `AliasNameClient.EnumerateSubCategoriesAsync` kept a browsed child only when its TypeDefinition was exactly `AliasNameCategoryType`. OPC 10000-17 §6.3.1 declares `<SubAliasNameCategories>` as an OptionalPlaceholder of `AliasNameCategoryType` and does not rule out subtypes, so sub-categories modelled with a subtype were silently dropped. The exact type is still accepted without a round trip; any other type definition is checked against the type hierarchy with `Session.NodeCache.IsTypeOfAsync` (the pattern `RoleManagementClient` uses for `RoleType`). The node cache keeps the type references, so each distinct type is resolved once. The check runs on the first browse page and on every BrowseNext page. `docs/AliasNames.md` notes that subtypes are included. Tests: the mocked session harness gets a node cache that answers `IsTypeOfAsync` from a subtype map; a new test covers the exact type, a direct subtype, a subtype of a subtype, a FolderType child and an untyped child. It fails on master (`Missing: < "Vendor", "Derived" >`) and passes with the fix. `Opc.Ua.Client.Tests` 2733/2733 on net10.0 and net8.0; `Opc.Ua.Features.Tests` AliasNameIntegrationTests (real server) 7/7. Fork CI (full matrix incl. macOS) and CodeQL: green — [CI run 36769850776](https://github.com/biancode/UA-.NETStandard/actions/runs/36769850776) (full matrix incl. macOS), [CodeQL run 36769855329](https://github.com/biancode/UA-.NETStandard/actions/runs/36769855329). ## Related Issues - Fixes #4610 ## Checklist - [x] I have signed the [CLA](https://opcfoundation.org/license/cla/ContributorLicenseAgreementv1.0.pdf) and read the [CONTRIBUTING](https://github.com/OPCFoundation/UA-.NETStandard/blob/master/CONTRIBUTING.md) doc. - [x] I have added tests that prove my fix is effective or that my feature works and increased code coverage. - [x] I have added all necessary documentation. - [x] I have verified that my changes do not introduce (new) build or analyzer warnings. - [ ] I ran **all** tests locally using the **UA.slnx** solution against at least .net **framework** and .net **10**, and all passed. (Affected suites on net10.0 and net8.0 locally on macOS; .NET Framework is covered by the fork CI's Windows net48 legs.) - [ ] I fixed **all** failing and flaky tests in the CI pipelines and **all** CodeQL warnings. - [ ] I have addressed **all** PR feedback received.