Consolidate tests under src/tests

.gitignore

@@ -8,6 +8,7 @@
 .vs/
 *.VC.db
 .venv/
+build.slnx
 
 # Build results
 [Aa]rtifacts/

Directory.Build.props

@@ -9,8 +9,11 @@
     <LangVersion>Latest</LangVersion>
     <WarningLevel>4</WarningLevel>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+    <WarnOnPackingNonPackableProject>false</WarnOnPackingNonPackableProject>
     <SuppressNETCoreSdkPreviewMessage>true</SuppressNETCoreSdkPreviewMessage>
     <_SkipUpgradeNetAnalyzersNuGetWarning>true</_SkipUpgradeNetAnalyzersNuGetWarning>
+    <IsShipping>false</IsShipping>
+    <IsPackable>false</IsPackable>
   </PropertyGroup>
 
   <PropertyGroup>
@@ -67,4 +70,13 @@
     <SupportedXUnitTestTargetFrameworks>net8.0</SupportedXUnitTestTargetFrameworks>
   </PropertyGroup>
 
+  <PropertyGroup Condition="'$(TargetArch)' != 'x86'">
+    <DotNetInstallRoot>$(RepoRoot).dotnet-test\</DotNetInstallRoot>
+    <RegistryRoot>HKEY_LOCAL_MACHINE\SOFTWARE</RegistryRoot>
+  </PropertyGroup>
+
+  <PropertyGroup Condition="'$(TargetArch)' == 'x86'">
+    <DotNetInstallRoot>$(RepoRoot).dotnet-test\x86\</DotNetInstallRoot>
+    <RegistryRoot>HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node</RegistryRoot>
+  </PropertyGroup>
 </Project>

THIRD-PARTY-NOTICES.TXT

@@ -1559,7 +1559,7 @@ SOFTWARE.
 
 -------------------------------------------------
 
-Source in src/Microsoft.Diagnostics.TestHelpers/Xunit.Extensions/* is largely derived from source
+Source in src/tests/Microsoft.Diagnostics.TestHelpers/Xunit.Extensions/* is largely derived from source
 source found at https://github.com/xunit/samples.xunit.
 
 This set of code is covered by the following license:

build.proj

@@ -0,0 +1,8 @@
+<Project Sdk="Microsoft.Build.Traversal">
+
+  <ItemGroup >
+    <ProjectReference Include="src/dirs.proj" />
+    <ProjectReference Include="src/tests/dirs.proj" Condition="'$(SkipTests)' != 'true'" />
+  </ItemGroup>
+
+</Project>