Make sync client api obsolete

[marcschier]

Proposed changes

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[codecov]

Codecov Report

❌ Patch coverage is 48.73239% with 364 lines in your changes missing coverage. Please review.
✅ Project coverage is 58.01%. Comparing base (b6b63c9) to head (7fabfa6).
⚠️ Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
...braries/Opc.Ua.Client/Subscription/Subscription.cs	65.59%	68 Missing and 7 partials ⚠️
Libraries/Opc.Ua.Client/NodeCache/NodeCache.cs	64.28%	58 Missing and 12 partials ⚠️
...braries/Opc.Ua.Client/NodeCache/IAsyncTypeTable.cs	9.67%	56 Missing ⚠️
...braries/Opc.Ua.Client/NodeCache/IAsyncNodeTable.cs	0.00%	30 Missing ⚠️
...braries/Opc.Ua.Client/Session/SessionExtensions.cs	30.23%	29 Missing and 1 partial ⚠️
Libraries/Opc.Ua.Client/Browser.cs	14.70%	28 Missing and 1 partial ⚠️
...ibraries/Opc.Ua.Client/Session/TraceableSession.cs	56.81%	19 Missing ⚠️
Libraries/Opc.Ua.Client/Session/SessionObsolete.cs	0.00%	14 Missing ⚠️
Libraries/Opc.Ua.Server/Server/StandardServer.cs	0.00%	12 Missing ⚠️
Libraries/Opc.Ua.Client/CoreClientUtils.cs	52.63%	9 Missing ⚠️
... and 4 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3174      +/-   ##
==========================================
+ Coverage   57.88%   58.01%   +0.13%     
==========================================
  Files         353      354       +1     
  Lines       80549    77908    -2641     
  Branches    14037    13816     -221     
==========================================
- Hits        46628    45201    -1427     
+ Misses      29614    28471    -1143     
+ Partials     4307     4236      -71     

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[Copilot]

Pull Request Overview

This PR makes the synchronous client API obsolete by adding [Obsolete] attributes to sync methods and converting all test code to use the async equivalents. The changes ensure all client operations use async patterns while maintaining backward compatibility through obsolete sync methods that internally call the async versions.

• Marks sync client methods as obsolete and implements them as wrappers around async methods
• Converts all test code from sync to async implementations
• Removes conditional compilation directives (CLIENT_ASYNC, NET_STANDARD_ASYNC) as async is now the default
• Updates project files to use the NET_STANDARD_OBSOLETE_SYNC define

Reviewed Changes

Copilot reviewed 51 out of 59 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
Tests/Opc.Ua.Client.Tests/SessionClientBatchTest.cs	Removes sync test methods, keeps only async versions
Tests/Opc.Ua.Client.Tests/ReverseConnectTest.cs	Converts sync method calls to async equivalents
Tests/Opc.Ua.Client.Tests/RequestHeaderTest.cs	Updates test method to use async ReadValuesAsync
Tests/Opc.Ua.Client.Tests/Opc.Ua.Client.Tests.csproj	Removes CLIENT_ASYNC define constant
Tests/Opc.Ua.Client.Tests/NodeCacheAsyncTest.cs	Simplifies by removing sync/async branching logic
Tests/Opc.Ua.Client.Tests/DurableSubscriptionTest.cs	Converts subscription operations to async patterns
Tests/Opc.Ua.Client.Tests/ContinuationPointInBatchTest.cs	Updates browse operations to async methods
Tests/Opc.Ua.Client.Tests/ClientTestServices.cs	Wraps sync interface methods with async calls
Tests/Opc.Ua.Client.Tests/ClientTestServerQuotas.cs	Removes sync version of chunk reading test
Tests/Opc.Ua.Client.Tests/ClientTestNoSecurity.cs	Converts discovery and session operations to async
Tests/Opc.Ua.Client.Tests/ClientTestFramework.cs	Updates operation limit reading to async
Tests/Opc.Ua.Client.Tests/ClientTest.cs	Extensive conversion of sync session operations to async
Tests/Opc.Ua.Client.Tests/ClientFixture.cs	Updates endpoint selection to async
Tests/Opc.Ua.Client.ComplexTypes.Tests/TypeSystemClientTest.cs	Converts node cache operations to async
Tests/Opc.Ua.Client.ComplexTypes.Tests/NodeCacheResolverTests.cs	Updates browser operations to async
Tests/Opc.Ua.Client.ComplexTypes.Tests/DataDictionaryTests.cs	Converts dictionary loading to async
Stack/Opc.Ua.Core/Stack/Configuration/ConfiguredEndpoints.cs	Marks sync UpdateFromServer methods as obsolete
Stack/Opc.Ua.Core/Stack/Client/SessionClient.cs	Minor code formatting change
Stack/Opc.Ua.Core/Stack/Client/IClientBase.cs	Removes sync Close method from interface
Stack/Opc.Ua.Core/Stack/Client/DiscoveryClient.cs	Marks sync discovery methods as obsolete
Stack/Opc.Ua.Core/Stack/Client/ClientBase.cs	Removes sync Close implementation
Stack/Opc.Ua.Core/Security/Certificates/CertificateTrustList.cs	Adds cancellation token to async method
Stack/Opc.Ua.Core/Opc.Ua.Core.csproj	Adds NET_STANDARD_OBSOLETE_SYNC define
Libraries/Opc.Ua.Server/Server/StandardServer.cs	Converts discovery registration to async
Libraries/Opc.Ua.Server/NodeManager/MasterNodeManager.cs	Updates method call handling to async
Libraries/Opc.Ua.Gds.Client.Common/ServerPushConfigurationClient.cs	Updates endpoint selection to async
Libraries/Opc.Ua.Gds.Client.Common/GlobalDiscoveryServerClient.cs	Updates endpoint selection to async
Libraries/Opc.Ua.Client/Subscription/SubscriptionObsolete.cs	New file containing obsolete wrappers for sync methods
Libraries/Opc.Ua.Client/Subscription/SubscriptionAsync.cs	Removed file (async methods moved to main class)
Libraries/Opc.Ua.Client/Subscription/Subscription.cs	Merges async methods into main class, removes sync implementations
Libraries/Opc.Ua.Client/Subscription/MonitoredItem.cs	Converts GetEventType to async

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[romanett]

Great addtion to streamline our codebase. Also like that the deprecation of sync & APM based generated code is already prepared / done