Define constant TEST in test projects

E2E is defined separately because it is standalone.

Author: andyleejordan

test/PowerShellEditorServices.Test.E2E/PowerShellEditorServices.Test.E2E.csproj

@@ -6,6 +6,10 @@
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
+  <PropertyGroup>
+      <DefineConstants>$(DefineConstants);TEST</DefineConstants>
+  </PropertyGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Logging" Version="5.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.10.0" />

test/PowerShellEditorServices.Test.Shared/PowerShellEditorServices.Test.Shared.csproj

@@ -1,17 +1,25 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), PowerShellEditorServices.Common.props))\PowerShellEditorServices.Common.props" />
+
   <PropertyGroup>
     <VersionPrefix>0.9.0-beta</VersionPrefix>
     <TargetFrameworks>netstandard2.0</TargetFrameworks>
     <AssemblyName>Microsoft.PowerShell.EditorServices.Test.Shared</AssemblyName>
   </PropertyGroup>
+
+  <PropertyGroup>
+      <DefineConstants>$(DefineConstants);TEST</DefineConstants>
+  </PropertyGroup>
+
   <ItemGroup>
     <ProjectReference Include="..\..\src\PowerShellEditorServices\PowerShellEditorServices.csproj" />
   </ItemGroup>
+
   <PropertyGroup>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <GenerateBindingRedirectsOutputType>true</GenerateBindingRedirectsOutputType>
   </PropertyGroup>
+
   <ItemGroup>
     <AssemblyAttribute Include="System.Runtime.CompilerServices.InternalsVisibleTo">
       <_Parameter1>Microsoft.PowerShell.EditorServices.Test</_Parameter1>