Move ActiveDirectoryAuthenticationProvider Tests

[paulmedynski]

Description

This PR moves all existing MDS tests that use the ActiveDirectoryAuthenticationProvider (ADAP) into the Azure project. The tests are moved as-is with non-functional changes to get them to build/run.

A few MDS tests were unnecessarily using ADAP when they should have been using a test provider, so I updated them to do so.

A full suite of tests for the Azure package will be created in future PRs.

Testing

Existing CI for the Azure and MDS packages should confirm everything.

[paulmedynski]

Commentary for reviewers.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
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Additional details and impacted files

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##             feat/azure-split    #3717   +/-   ##
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Flag	Coverage Δ
addons	90.82% <ø> (?)
netcore	76.45% <ø> (?)
netfx	75.96% <ø> (?)

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[paulmedynski]

Commentary for reviewers.

[paulmedynski]

Commentary and things for myself to fix.

[Copilot]

Pull request overview

This PR migrates ActiveDirectoryAuthenticationProvider (ADAP) tests from the Microsoft.Data.SqlClient (MDS) test suite to the Azure package. The migration includes infrastructure changes to support project-reference builds with different assembly names for .NET Core and .NET Framework, along with new test utilities and comprehensive pipeline updates.

Key Changes:

• Build infrastructure updated to handle assembly name suffixes for project-reference builds
• ActiveDirectoryAuthenticationProvider tests moved from MDS ManualTests to Azure package tests
• New test provider implementations (UsernamePasswordProvider, ManagedIdentityProvider) added to MDS tests
• Azure package tests now have comprehensive configuration and pipeline support

Reviewed changes

Copilot reviewed 55 out of 56 changed files in this pull request and generated 16 comments.

Show a summary per file

File	Description
tools/targets/GenerateMdsPackage.targets	Added assembly name suffix properties for project builds
tools/targets/CopySniDllsForNetFxProjectReferenceBuilds.targets	New target file to copy SNI DLLs for .NET Framework project builds
tools/specs/Microsoft.Data.SqlClient.nuspec	Updated to support optional assembly name suffixes in file paths
src/Microsoft.SqlServer.Server/StringsHelper.cs	Added braces for single-line if statements (code style fix)
src/Microsoft.Data.SqlClient/tests/ManualTests/SQL/ConnectivityTests/AADConnectionTest.cs	Removed ADAP-dependent tests, added test provider usage for remaining tests
src/Microsoft.Data.SqlClient/tests/ManualTests/DataCommon/UsernamePasswordProvider.cs	New test provider for username/password authentication
src/Microsoft.Data.SqlClient/tests/ManualTests/DataCommon/ManagedIdentityProvider.cs	New test provider for managed identity authentication
src/Microsoft.Data.SqlClient/tests/FunctionalTests/AADAuthenticationTests.cs	Removed ADAP constructor tests (moved to Azure package)
src/Microsoft.Data.SqlClient/tests/FunctionalTests/SqlAuthenticationProviderTest.cs	Deleted - tests moved to Azure package
src/Microsoft.Data.SqlClient.Extensions/Azure/test/AADConnectionTest.cs	New file with migrated ADAP connection tests
src/Microsoft.Data.SqlClient.Extensions/Azure/test/AADAuthenticationTests.cs	New file with migrated ADAP provider constructor tests
src/Microsoft.Data.SqlClient.Extensions/Azure/test/DefaultAuthProviderTests.cs	New test verifying ADAP is installed for all AAD methods
src/Microsoft.Data.SqlClient.Extensions/Azure/test/Config.cs	New configuration class for Azure package tests
src/Microsoft.Data.SqlClient.Extensions/Abstractions/src/SqlAuthenticationProviderInternal.cs	Enhanced to support assembly name suffixes and improved logging
src/Directory.Build.props	Added ApplyMdsAssemblyNameSuffix property logic
eng/pipelines/*	Multiple pipeline files updated for consistent parameter naming and new test infrastructure

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[Copilot]

Pull request overview

Copilot reviewed 54 out of 55 changed files in this pull request and generated 10 comments.

[Copilot]

Pull request overview

Copilot reviewed 53 out of 54 changed files in this pull request and generated 3 comments.

[Copilot]

Pull request overview

Copilot reviewed 59 out of 60 changed files in this pull request and generated 1 comment.

[mdaigle]

Just one request remaining regarding the missing test.

[benrr101]

I'm looking at this as mostly a work-still-in-progress set of changes. Some of it overlaps with changes I have inflight for common mds project, some of it I hope we can tweak later on. But since this is just to the feature branch, I'll trust as long as it's working, it'll keep you moving.

[paulmedynski]

@benrr101 - I've applied your suggestions to the next PR #3873.