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a631176
Initial plan
Copilot Feb 6, 2026
e99f19c
Migrate xUnit v2 to v3: core configuration and namespace changes
Copilot Feb 6, 2026
167ccfa
Remove Microsoft.DotNet.XUnitExtensions and add xUnit v3-compatible a…
Copilot Feb 6, 2026
3c6b34e
Fix remaining compilation errors: IXunitSerializable, UsesVerify, xUn…
Copilot Feb 6, 2026
3b028f2
Address review: use Microsoft.DotNet.XUnitV3Extensions, remove duplic…
Copilot Feb 6, 2026
2249205
Fix Microsoft.Bcl.AsyncInterfaces version conflict: remove XUnitV3Ext…
Copilot Feb 6, 2026
526ae29
Fix MSBuildTestEnvironmentFixture assembly cleanup failure: remove as…
Copilot Feb 9, 2026
1900855
Turn off frozen versions for test helper DLL
rainersigwald Feb 12, 2026
587ba2b
Make ConditionalFacts depend on properties
rainersigwald Feb 12, 2026
a636f92
Set Skip in false ConditionalFact
rainersigwald Feb 12, 2026
12baced
Merge branch 'main' into copilot/migrate-xunit-v2-to-v3
rainersigwald Feb 12, 2026
8b322b2
copilot-driven test fixes
rainersigwald Feb 12, 2026
f942bb7
Merge branch 'copilot/migrate-xunit-v2-to-v3' of https://github.com/d…
rainersigwald Feb 12, 2026
642ca30
Merge branch 'main' into copilot/migrate-xunit-v2-to-v3
rainersigwald Feb 25, 2026
4fb1da0
fixup! Merge branch 'main' into copilot/migrate-xunit-v2-to-v3
rainersigwald Feb 25, 2026
72b636c
Disable test-environment enforcement for all tests
rainersigwald Mar 2, 2026
93e0e27
Merge branch 'main' into copilot/migrate-xunit-v2-to-v3
rainersigwald Mar 3, 2026
4ed50fc
fixup! Merge branch 'main' into copilot/migrate-xunit-v2-to-v3
rainersigwald Mar 6, 2026
5395746
Get better error out of ParameterizedSwitchTargetQuotedChangeWaveTest
rainersigwald Mar 6, 2026
7d33607
Merge remote-tracking branch 'origin/main' into copilot/migrate-xunit…
rainersigwald Mar 6, 2026
0af7371
Reset changewave state after toggling it in tests
rainersigwald Mar 6, 2026
e1063f9
Merge with main, fix namespace conflicts in new test files from main
invalid-email-address Mar 27, 2026
0f90539
Merge with main: fix ChangeWaves.ResetStateForTests rename and namesp…
Copilot Mar 27, 2026
87ae3ef
Fix ConditionalFact condition: convert method to property (xUnit v3 S…
Copilot Mar 27, 2026
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3 changes: 1 addition & 2 deletions Directory.Packages.props
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Expand Up @@ -15,10 +15,10 @@
-->
<ItemGroup>
<PackageVersion Include="Microsoft.Build.NuGetSdkResolver" Version="$(NuGetBuildTasksVersion)" />
<PackageVersion Include="Microsoft.DotNet.XUnitV3Extensions" Version="$(MicrosoftDotNetXUnitExtensionsVersion)" />
<PackageVersion Include="Microsoft.CodeAnalysis.Collections" Version="$(MicrosoftCodeAnalysisCollectionsVersion)" />
<PackageVersion Include="Microsoft.CodeAnalysis.Contracts" Version="$(MicrosoftCodeAnalysisContractsVersion)" />
<PackageVersion Include="Microsoft.CodeAnalysis.PooledObjects" Version="$(MicrosoftCodeAnalysisPooledObjectsVersion)" />
<PackageVersion Include="Microsoft.DotNet.XUnitExtensions" Version="$(MicrosoftDotNetXUnitExtensionsVersion)" />
<PackageVersion Include="Microsoft.IO.Redist" Version="$(MicrosoftIORedistVersion)" />
<PackageVersion Include="Microsoft.Net.Compilers.Toolset" Version="$(MicrosoftNetCompilersToolsetVersion)" Condition="'$(UsingToolMicrosoftNetCompilers)' != 'true'" />
<PackageVersion Include="NuGet.Build.Tasks" Version="$(NuGetBuildTasksVersion)" />
Expand Down Expand Up @@ -46,7 +46,6 @@
<PackageVersion Include="System.Threading.Tasks.Dataflow" Version="$(SystemThreadingTasksDataflowVersion)" />
<PackageVersion Include="System.Threading.Tasks.Extensions" Version="$(SystemThreadingTasksExtensionsVersion)" />
<PackageVersion Include="System.ValueTuple" Version="$(SystemValueTupleVersion)" />
<PackageVersion Include="xunit.console" Version="$(XUnitVersion)" />
<PackageVersion Include="Microsoft.VisualStudio.Telemetry" Version="$(MicrosoftVisualStudioTelemetryVersion)" />
<!-- Microsoft.VisualStudio.SolutionPersistence is maintained in eng/dependabot/Packages.props -->
</ItemGroup>
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4 changes: 2 additions & 2 deletions eng/dependabot/Directory.Packages.props
Original file line number Diff line number Diff line change
Expand Up @@ -50,8 +50,8 @@
<PackageVersion Include="Microsoft.VisualStudio.SolutionPersistence" Version="1.0.52" />
<PackageVersion Update="Microsoft.VisualStudio.SolutionPersistence" Condition="'$(MicrosoftVisualStudioSolutionPersistenceVersion)' != ''" Version="$(MicrosoftVisualStudioSolutionPersistenceVersion)" />

<PackageVersion Include="Verify.Xunit" Version="19.14.1" />
<PackageVersion Update="Verify.XUnit" Condition="'$(VerifyXUnitVersion)' != ''" Version="$(VerifyXUnitVersion)" />
<PackageVersion Include="Verify.XunitV3" Version="28.12.0" />
<PackageVersion Update="Verify.XunitV3" Condition="'$(VerifyXUnitVersion)' != ''" Version="$(VerifyXUnitVersion)" />
</ItemGroup>

<ItemGroup Condition="'$(DotNetBuildSourceOnly)' != 'true'">
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,6 @@
using Microsoft.Build.Shared;
using Microsoft.Build.UnitTests;
using Xunit;
using Xunit.Abstractions;

#nullable disable

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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,6 @@
using Microsoft.Build.Construction;
using Microsoft.Build.Evaluation;
using Xunit;
using Xunit.Abstractions;
using InvalidProjectFileException = Microsoft.Build.Exceptions.InvalidProjectFileException;

#nullable disable
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,6 @@
using Microsoft.Build.Utilities;
using Shouldly;
using Xunit;
using Xunit.Abstractions;
using InvalidProjectFileException = Microsoft.Build.Exceptions.InvalidProjectFileException;

#nullable disable
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1 change: 0 additions & 1 deletion src/Build.OM.UnitTests/Definition/Project_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,6 @@
using Microsoft.Build.Shared;
using Shouldly;
using Xunit;
using Xunit.Abstractions;
using GlobResultList = System.Collections.Generic.List<(string, string[], System.Collections.Immutable.ImmutableHashSet<string>, System.Collections.Immutable.ImmutableHashSet<string>)>;
using InvalidProjectFileException = Microsoft.Build.Exceptions.InvalidProjectFileException;
// can't use an actual ProvenanceResult because it points to a ProjectItemElement which is hard to mock.
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1 change: 0 additions & 1 deletion src/Build.OM.UnitTests/Instance/ProjectInstance_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,6 @@
using Microsoft.Build.Framework;
using Microsoft.Build.Shared;
using Xunit;
using Xunit.Abstractions;
using ForwardingLoggerRecord = Microsoft.Build.Logging.ForwardingLoggerRecord;

#nullable disable
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1 change: 0 additions & 1 deletion src/Build.OM.UnitTests/NugetRestoreTests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,6 @@
using Microsoft.Build.UnitTests.Shared;
using Shouldly;
using Xunit;
using Xunit.Abstractions;

namespace Microsoft.Build.Engine.OM.UnitTests
{
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1 change: 0 additions & 1 deletion src/Build.UnitTests/BackEnd/AppHostSupport_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,6 @@
using Microsoft.Build.UnitTests;
using Shouldly;
using Xunit;
using Xunit.Abstractions;

#nullable disable

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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,6 @@
using Microsoft.Build.UnitTests.Shared;
using Shouldly;
using Xunit;
using Xunit.Abstractions;

namespace Microsoft.Build.Engine.UnitTests
{
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1 change: 0 additions & 1 deletion src/Build.UnitTests/BackEnd/BuildManager_Logging_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,6 @@
using Microsoft.Build.UnitTests;
using Shouldly;
using Xunit;
using Xunit.Abstractions;
using static Microsoft.Build.UnitTests.ObjectModelHelpers;

#nullable disable
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1 change: 0 additions & 1 deletion src/Build.UnitTests/BackEnd/BuildManager_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,6 @@
using Microsoft.Build.Utilities;
using Shouldly;
using Xunit;
using Xunit.Abstractions;
using static Microsoft.Build.UnitTests.ObjectModelHelpers;
using Constants = Microsoft.Build.Framework.Constants;

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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,6 @@
using Microsoft.Build.Shared;
using Shouldly;
using Xunit;
using Xunit.Abstractions;

#nullable disable

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1 change: 0 additions & 1 deletion src/Build.UnitTests/BackEnd/LoggingContext_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,6 @@
using Microsoft.Build.Framework;
using Shouldly;
using Xunit;
using Xunit.Abstractions;

#nullable disable

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1 change: 0 additions & 1 deletion src/Build.UnitTests/BackEnd/MSBuild_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,6 @@
using Microsoft.Build.Utilities;

using Xunit;
using Xunit.Abstractions;

#nullable disable

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1 change: 0 additions & 1 deletion src/Build.UnitTests/BackEnd/SdkResolverLoader_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,6 @@
using Microsoft.Build.UnitTests;
using Shouldly;
using Xunit;
using Xunit.Abstractions;
using Exception = System.Exception;
using SdkResolverBase = Microsoft.Build.Framework.SdkResolver;
using SdkResolverContextBase = Microsoft.Build.Framework.SdkResolverContext;
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1 change: 0 additions & 1 deletion src/Build.UnitTests/BackEnd/SdkResultOutOfProc_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,6 @@
using Microsoft.Build.Unittest;
using Shouldly;
using Xunit;
using Xunit.Abstractions;
using static Microsoft.Build.UnitTests.ObjectModelHelpers;

#nullable disable
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1 change: 0 additions & 1 deletion src/Build.UnitTests/BackEnd/TargetEntry_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,6 @@
using Microsoft.Build.Framework;
using Microsoft.Build.Shared;
using Xunit;
using Xunit.Abstractions;
using ElementLocation = Microsoft.Build.Construction.ElementLocation;

#nullable disable
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1 change: 0 additions & 1 deletion src/Build.UnitTests/BackEnd/TargetUpToDateChecker_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,6 @@
using Microsoft.Build.Shared;
using Microsoft.Win32.SafeHandles;
using Xunit;
using Xunit.Abstractions;

#nullable disable

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1 change: 0 additions & 1 deletion src/Build.UnitTests/BackEnd/TaskBuilder_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,6 @@
using Microsoft.Build.UnitTests.Shared;
using Shouldly;
using Xunit;
using Xunit.Abstractions;
using ElementLocation = Microsoft.Build.Construction.ElementLocation;
using ILoggingService = Microsoft.Build.BackEnd.Logging.ILoggingService;
using LegacyThreadingData = Microsoft.Build.Execution.LegacyThreadingData;
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1 change: 0 additions & 1 deletion src/Build.UnitTests/BackEnd/TaskHostCallback_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,6 @@
using Microsoft.Build.UnitTests.Shared;
using Shouldly;
using Xunit;
using Xunit.Abstractions;

namespace Microsoft.Build.UnitTests.BackEnd
{
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1 change: 0 additions & 1 deletion src/Build.UnitTests/BackEnd/TaskHostFactory_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,6 @@

using Shouldly;
using Xunit;
using Xunit.Abstractions;

#nullable disable

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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,6 @@
using Microsoft.Build.Utilities;
using Shouldly;
using Xunit;
using Xunit.Abstractions;

namespace Microsoft.Build.Engine.UnitTests.BackEnd
{
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1 change: 0 additions & 1 deletion src/Build.UnitTests/BackEnd/TaskRegistry_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,6 @@
using Microsoft.Build.Utilities;
using Shouldly;
using Xunit;
using Xunit.Abstractions;
using InvalidProjectFileException = Microsoft.Build.Exceptions.InvalidProjectFileException;

#nullable disable
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1 change: 0 additions & 1 deletion src/Build.UnitTests/BackEnd/TaskRouter_IntegrationTests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,6 @@
using Microsoft.Build.Utilities;
using Shouldly;
using Xunit;
using Xunit.Abstractions;

#nullable disable

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1 change: 0 additions & 1 deletion src/Build.UnitTests/BinaryLogger_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,6 @@
using Microsoft.Build.UnitTests.Shared;
using Shouldly;
using Xunit;
using Xunit.Abstractions;

#nullable disable

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1 change: 0 additions & 1 deletion src/Build.UnitTests/CLR2TaskHost_E2E_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,6 @@
using Microsoft.Build.UnitTests.Shared;
using Shouldly;
using Xunit;
using Xunit.Abstractions;

namespace Microsoft.Build.Engine.UnitTests;

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1 change: 0 additions & 1 deletion src/Build.UnitTests/ChangeWaves_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,6 @@
using Microsoft.Build.UnitTests;
using Shouldly;
using Xunit;
using Xunit.Abstractions;

#nullable disable

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1 change: 0 additions & 1 deletion src/Build.UnitTests/ConsoleLogger_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,6 @@
using Microsoft.Build.Shared;
using Shouldly;
using Xunit;
using Xunit.Abstractions;
using TaskItem = Microsoft.Build.Execution.ProjectItemInstance.TaskItem;

#nullable disable
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,6 @@
using Microsoft.VisualStudio.SolutionPersistence.Serializer;
using Shouldly;
using Xunit;
using Xunit.Abstractions;

#nullable disable

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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,6 @@
using Microsoft.Build.Shared;
using Shouldly;
using Xunit;
using Xunit.Abstractions;

#nullable disable

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1 change: 0 additions & 1 deletion src/Build.UnitTests/Construction/SolutionFilter_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,6 @@
using Microsoft.VisualStudio.SolutionPersistence.Serializer;
using Shouldly;
using Xunit;
using Xunit.Abstractions;

namespace Microsoft.Build.Engine.UnitTests.Construction
{
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,6 @@
using Microsoft.Build.UnitTests.Shared;
using Shouldly;
using Xunit;
using Xunit.Abstractions;
using FrameworkLocationHelper = Microsoft.Build.Shared.FrameworkLocationHelper;
using ILoggingService = Microsoft.Build.BackEnd.Logging.ILoggingService;
using InternalUtilities = Microsoft.Build.Internal.Utilities;
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1 change: 0 additions & 1 deletion src/Build.UnitTests/EndToEndCondition_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,6 @@

using Shouldly;
using Xunit;
using Xunit.Abstractions;

#nullable disable

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1 change: 0 additions & 1 deletion src/Build.UnitTests/EscapingInProjects_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,6 @@
using ResourceUtilities = Microsoft.Build.Shared.ResourceUtilities;
using Shouldly;
using Xunit;
using Xunit.Abstractions;
#if FEATURE_COMPILE_IN_TESTS
using Microsoft.Build.Shared;
#endif
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1 change: 0 additions & 1 deletion src/Build.UnitTests/Evaluation/ExpanderFunction_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,6 @@
using Shouldly;

using Xunit;
using Xunit.Abstractions;
using ParseArgs = Microsoft.Build.Evaluation.Expander.ArgumentParser;

namespace Microsoft.Build.Engine.UnitTests.Evaluation
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3 changes: 2 additions & 1 deletion src/Build.UnitTests/Evaluation/Expander_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,6 @@
using Microsoft.Win32;
using Shouldly;
using Xunit;
using Xunit.Abstractions;
using Xunit.NetCore.Extensions;
using InvalidProjectFileException = Microsoft.Build.Exceptions.InvalidProjectFileException;
using ProjectHelpers = Microsoft.Build.UnitTests.BackEnd.ProjectHelpers;
Expand Down Expand Up @@ -5133,6 +5132,8 @@ public void ExpandItem_ConvertToStringUsingInvariantCultureForNumberData_Respect
using (var env = TestEnvironment.Create())
{
env.SetEnvironmentVariable("MSBUILDDISABLEFEATURESFROMVERSION", ChangeWaves.Wave17_12.ToString());
ChangeWaves.ResetStateForTests();

currentThread.CurrentCulture = svSECultureInfo;
currentThread.CurrentUICulture = svSECultureInfo;
var root = env.CreateFolder();
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,6 @@
using Microsoft.Build.Unittest;
using Shouldly;
using Xunit;
using Xunit.Abstractions;

#nullable disable

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1 change: 0 additions & 1 deletion src/Build.UnitTests/EvaluationProfiler_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,6 @@
using Microsoft.Build.Logging;
using Microsoft.Build.UnitTests;
using Xunit;
using Xunit.Abstractions;
using static Microsoft.Build.UnitTests.ObjectModelHelpers;

#nullable disable
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1 change: 0 additions & 1 deletion src/Build.UnitTests/ExpressionTreeExpression_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,6 @@
using Microsoft.Build.Execution;
using Microsoft.Build.Shared.FileSystem;
using Xunit;
using Xunit.Abstractions;

#nullable disable

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1 change: 0 additions & 1 deletion src/Build.UnitTests/Graph/GraphLoadedFromSolution_tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,6 @@
using Microsoft.Build.UnitTests;
using Shouldly;
using Xunit;
using Xunit.Abstractions;
using static Microsoft.Build.Graph.UnitTests.GraphTestingUtilities;
using static Microsoft.Build.UnitTests.Helpers;

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1 change: 0 additions & 1 deletion src/Build.UnitTests/Graph/IsolateProjects_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,6 @@
using Microsoft.Build.UnitTests;
using Shouldly;
using Xunit;
using Xunit.Abstractions;
using ExpectedNodeBuildOutput = System.Collections.Generic.Dictionary<Microsoft.Build.Graph.ProjectGraphNode, string[]>;
using OutputCacheDictionary = System.Collections.Generic.Dictionary<Microsoft.Build.Graph.ProjectGraphNode, string>;

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1 change: 0 additions & 1 deletion src/Build.UnitTests/Graph/ProjectGraph_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,6 @@
using Microsoft.Build.UnitTests;
using Shouldly;
using Xunit;
using Xunit.Abstractions;
using Xunit.NetCore.Extensions;
using static Microsoft.Build.Graph.UnitTests.GraphTestingUtilities;

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1 change: 0 additions & 1 deletion src/Build.UnitTests/Graph/ResultCacheBasedBuilds_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,6 @@
using Microsoft.Build.UnitTests;
using Shouldly;
using Xunit;
using Xunit.Abstractions;
using static Microsoft.Build.UnitTests.Helpers;

using ExpectedNodeBuildOutput = System.Collections.Generic.Dictionary<Microsoft.Build.Graph.ProjectGraphNode, string[]>;
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,6 @@
using Microsoft.Build.UnitTests.BackEnd;
using Shouldly;
using Xunit;
using Xunit.Abstractions;
using static Microsoft.Build.Engine.UnitTests.TestComparers.ProjectInstanceModelTestComparers;

#nullable disable
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1 change: 0 additions & 1 deletion src/Build.UnitTests/InvalidProjectFileException_Tests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,6 @@
using Microsoft.Build.Exceptions;

using Xunit;
using Xunit.Abstractions;

#nullable disable

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1 change: 0 additions & 1 deletion src/Build.UnitTests/MSBuildTaskHostTests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,6 @@
using Microsoft.Build.UnitTests.Shared;
using Shouldly;
using Xunit;
using Xunit.Abstractions;

namespace Microsoft.Build.Engine.UnitTests;

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