Fixed non-NET 8 tests

Author: JonPSmith

Test/Test.csproj

@@ -6,10 +6,6 @@
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
-  <ItemGroup>
-    <None Remove="TestData\example3-appsettings.json" />
-  </ItemGroup>
-
 	<ItemGroup Condition=" '$(TargetFramework)' == 'net8.0'">
 		<PackageReference Include="EfCore.TestSupport" Version="6.0.0" />
 		<PackageReference Include="EntityFrameworkCore.Exceptions.SqlServer" Version="6.0.3.1" />
@@ -59,6 +55,8 @@
 
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />
 		<PackageReference Include="xunit" Version="2.5.0" />
+		<PackageReference Include="xunit.assert" Version="2.5.0" />
+		<PackageReference Include="xunit.core" Version="2.5.0" />
 		<PackageReference Include="xunit.runner.visualstudio" Version="2.5.0">
 			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
 			<PrivateAssets>all</PrivateAssets>

Test/TestData/example3-appsettings.json

@@ -1,7 +1,6 @@
 {
   "ConnectionStrings": {
-    "DefaultConnection":
-      "Server=(localdb)\\mssqllocaldb;Database=aspnet-Example3.MvcWebApp.IndividualAccounts-66CDC4E0-F9E0-486F-8199-D13455BF1415;Trusted_Connection=True;MultipleActiveResultSets=true"
+    "DefaultConnection": "Server=(localdb)\\mssqllocaldb;Database=aspnet-Example3.MvcWebApp.IndividualAccounts-66CDC4E0-F9E0-486F-8199-D13455BF1415;Trusted_Connection=True;MultipleActiveResultSets=true"
   },
   "Logging": {
     "LogLevel": {
@@ -16,6 +15,5 @@
     "Email": "[email protected]",
     "Password": "[email protected]"
   },
-  "DemoUsers":
-    "[email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected]"
+  "DemoUsers": "[email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected]"
 }

Test/UnitTests/TestExamples/TestExamplesStartup.cs

@@ -103,7 +103,7 @@ public async Task TestExample3RunMethodsSequentiallyAsync()
             //Have to manually add configuration, using a copy of the Example3 appsettings.json file (ASP.NET Core adds this by default)
             var configBuilder = new ConfigurationBuilder()
                 .SetBasePath(TestData.GetTestDataDir())
-                .AddJsonFile("example3-appsettings.json", optional: true);
+                .AddJsonFile("example3-appsettings.json", optional: false);
             builder.Services.AddSingleton<IConfiguration>(configBuilder.Build());
 
             //Regsiter the Example3 invoice DbContext