Upgrade to MSTest4

[xj-ms]

• Bump  MSTest.TestAdapter  /  MSTest.TestFramework  from 2.2.7 → 4.2.2 in  Directory.Build.targets 
• Bump  Microsoft.NET.Test.Sdk  from 16.11.0 → 18.5.1
• Update  Microsoft.Performance.Toolkit.Plugins.Core.Tests.csproj  and  ...Plugins.Runtime.Tests.csproj  to use centrally-managed package versions; bump  Moq  and  coverlet.collector 
• Replace all  Assert.ThrowsException  calls with  Assert.ThrowsExactly 
• Replace all  Assert.ThrowsExceptionAsync  calls with  Assert.ThrowsExactlyAsync 
• Convert composite-format assert messages ( "...{0}...", args ) to C#-interpolated strings across affected test files
• Fix  AssertEx.IsInstanceOfType  to use  string.Format  since the formatted-message overload was removed
• Add explicit generic type argument to the ambiguous  Assert.AreNotSame  call in  ToolkitEngineTests.cs

[Copilot]

Pull request overview

This PR updates the repository’s .NET test toolchain to MSTest v4 and a newer Microsoft.NET.Test.Sdk, and performs the mechanical test code updates needed to compile and behave correctly under the new MSTest APIs.

Changes:

• Bumps centrally-managed test package versions in src/Directory.Build.targets (MSTest.TestAdapter/TestFramework, Microsoft.NET.Test.Sdk).
• Updates select test projects to rely on centrally-managed versions and bumps ancillary test dependencies (e.g., Moq, coverlet.collector).
• Replaces Assert.ThrowsException* with Assert.ThrowsExactly* and modernizes assert messages to interpolated strings; adjusts AssertEx to account for removed formatted-message overloads.

Show a summary per file

File	Description
src/Directory.Build.targets	Central version bumps for MSTest + Microsoft.NET.Test.Sdk.
src/PluginsSystem/Microsoft.Performance.Toolkit.Plugins.Core.Tests/Microsoft.Performance.Toolkit.Plugins.Core.Tests.csproj	Moves MSTest/NET.Test.Sdk to central versions; bumps Moq/coverlet.
src/PluginsSystem/Microsoft.Performance.Toolkit.Plugins.Runtime.Tests/Microsoft.Performance.Toolkit.Plugins.Runtime.Tests.csproj	Moves MSTest/NET.Test.Sdk to central versions; bumps Moq/coverlet.
src/PluginsSystem/Microsoft.Performance.Toolkit.Plugins.Runtime.Tests/PluginSourcesRepositoryTests.cs	Switches null-guard tests to ThrowsExactly.
src/PluginsSystem/Microsoft.Performance.Toolkit.Plugins.Runtime.Tests/FileSystemPluginRegistryTests.cs	Updates async exception assertions to ThrowsExactlyAsync.
src/PluginsSystem/Microsoft.Performance.Toolkit.Plugins.Runtime.Tests/FileSystemInstalledPluginStorageTests.cs	Updates async exception assertion to ThrowsExactlyAsync.
src/Microsoft.Performance.Testing/AssertEx.cs	Adjusts helper asserts for MSTest v4 overload changes.
src/Microsoft.Performance.Toolkit.Engine.Tests/ToolkitEngineTests.cs	Replaces throws asserts and converts formatted messages to interpolated strings; resolves AreNotSame ambiguity.
src/Microsoft.Performance.Toolkit.Engine.Tests/ToolkitEngineCreateInfoTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.Toolkit.Engine.Tests/PluginSetTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.Toolkit.Engine.Tests/EngineFixture.cs	Converts Assert.Fail composite formatting to interpolated strings.
src/Microsoft.Performance.Toolkit.Engine.Tests/DataSourceSetTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Tests/TypeExtensionTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Tests/TestClasses/TableDescriptorUtils.cs	Converts composite-format assert messages to interpolated strings.
src/Microsoft.Performance.SDK.Tests/TableConfigurationTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Tests/ProjectionTests.cs	Switches many throw-assertions to ThrowsExactly.
src/Microsoft.Performance.SDK.Tests/ProcessingSourceTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Tests/FileDataSourceAttributeTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Tests/ExtensionlessFileDataSourceAttributeTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Tests/DirectoryDataSourceAttributeTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Tests/DataSourceInfoTests.cs	Switches to ThrowsExactly (and retains duplicated asserts that should be cleaned up).
src/Microsoft.Performance.SDK.Tests/ColumnVariantsTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Tests/CollectionExtensionsTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/VersionCheckerTests.cs	Converts composite-format assert messages to interpolated strings.
src/Microsoft.Performance.SDK.Runtime.Tests/TableBuilderTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/ProcessingSourceReferenceTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/ProcessingSourceExecutorTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/Options/StreamPluginOptionsSaverTests.cs	Switches disposed-stream assertion to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/Options/StreamPluginOptionsLoaderTests.cs	Switches disposed-stream assertion to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/Options/PluginOptionsSystemTests.cs	Switches to ThrowsExactly (but current change introduces a mismatch for [DataRow(null)] and ignores filePath).
src/Microsoft.Performance.SDK.Runtime.Tests/Extensibility/TableExtensionReferenceTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/Extensibility/SourceSessionTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/Extensibility/SourceDataCookerReferenceTests.cs	Switches to ThrowsExactly (incl. commented-out assertions).
src/Microsoft.Performance.SDK.Runtime.Tests/Extensibility/DependencyDagTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/Extensibility/DependencyDagExtensionsTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/Extensibility/DataProcessorReferenceTests.cs	Switches commented-out assertions to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/Extensibility/DataExtensionRetrievalFactoryTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/Extensibility/DataExtensionRepositoryTests.cs	Switches to ThrowsExactly (incl. commented-out assertions).
src/Microsoft.Performance.SDK.Runtime.Tests/Extensibility/DataExtensionDependencyTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/Extensibility/DataCookerSchedulingNodeTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/Extensibility/CompositeDataCookerReferenceTests.cs	Switches to ThrowsExactly (incl. commented-out assertions).
src/Microsoft.Performance.SDK.Runtime.Tests/Extensibility/CompositeCookerRepositoryTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/Discovery/AssemblyExtensionDiscoveryTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/DataSourceResolverTests.cs	Switches to ThrowsExactly and interpolated assert message.
src/Microsoft.Performance.SDK.Runtime.Tests/CookedDataReflectorTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/ColumnBuilding/ToggledColumnBuilderTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/ColumnBuilding/ModalColumnBuilderTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.Tests/ColumnBuilding/EmptyColumnBuilderTests.cs	Switches to ThrowsExactly.
src/Microsoft.Performance.SDK.Runtime.NetCoreApp.Tests/Plugins/PluginsLoaderTests.cs	Switches to ThrowsExactly/ThrowsExactlyAsync and interpolated assert messages.

Review details

Comments suppressed due to low confidence (2)

src/Microsoft.Performance.SDK.Tests/DataSourceInfoTests.cs:28

• This test asserts the same new DataSourceInfo(0, -1, DateTime.UnixEpoch) call twice, which is redundant and doesn’t increase coverage.

        [TestMethod]
        [UnitTest]
        public void NegativeEndThrows()
        {
            Assert.ThrowsExactly<ArgumentOutOfRangeException>(() => new DataSourceInfo(0, -1, DateTime.UnixEpoch));
            Assert.ThrowsExactly<ArgumentOutOfRangeException>(() => new DataSourceInfo(0, -1, DateTime.UnixEpoch));
        }

src/Microsoft.Performance.SDK.Tests/DataSourceInfoTests.cs:36

• This test asserts the same new DataSourceInfo(1, 0, DateTime.UnixEpoch) call twice, which is redundant and doesn’t increase coverage.

        [TestMethod]
        [UnitTest]
        public void StopLessThanStartThrows()
        {
            Assert.ThrowsExactly<ArgumentOutOfRangeException>(() => new DataSourceInfo(1, 0, DateTime.UnixEpoch));
            Assert.ThrowsExactly<ArgumentOutOfRangeException>(() => new DataSourceInfo(1, 0, DateTime.UnixEpoch));
        }

• Files reviewed: 49/49 changed files
• Comments generated: 2
• Review effort level: Low