diff --git a/ci-test.ps1 b/ci-test.ps1
index fe470a04b..c9cfc07a3 100644
--- a/ci-test.ps1
+++ b/ci-test.ps1
@@ -6,18 +6,18 @@ param(
   [Parameter(Mandatory, Position = 2)]
   [string]$platform,
   [Parameter(Mandatory, Position = 3)]
-  [string]$codecov
+  [string]$codecov,
+  [Parameter(Position = 4)]
+  [string]$codecovProfile = 'Release'
 )
 
-  $netFxRegex = '^net\d+'
+$netFxRegex = '^net\d+'
 
 if ($codecov -eq 'true') {
 
-  # xunit doesn't understand custom params so use dotnet test.
-  # Coverage tests are run in debug because the coverage tools are triggering a JIT error in filter processors
-  # that causes the blue component of transformed values to be corrupted.
-  dotnet clean -c Debug
-  dotnet test -c Debug -f $targetFramework /p:codecov=true
+  # Allow toggling of profile to workaround any potential JIT errors caused by code injection.
+  dotnet clean -c $codecovProfile
+  dotnet test -c $codecovProfile -f $targetFramework /p:codecov=true
 }
 elseif ($platform -eq '-x86' -and $targetFramework -match $netFxRegex) {
 
@@ -31,7 +31,7 @@ elseif ($platform -eq '-x86' -and $targetFramework -match $netFxRegex) {
 
   Set-Location $PSScriptRoot
 }
-else  {
+else {
 
   dotnet test --no-build -c Release -f $targetFramework
 }
diff --git a/src/ImageSharp/Advanced/AotCompilerTools.cs b/src/ImageSharp/Advanced/AotCompilerTools.cs
index 60c1f4178..bb4ddb7d0 100644
--- a/src/ImageSharp/Advanced/AotCompilerTools.cs
+++ b/src/ImageSharp/Advanced/AotCompilerTools.cs
@@ -1,6 +1,7 @@
 // Copyright (c) Six Labors and contributors.
 // Licensed under the Apache License, Version 2.0.
 
+using System.Diagnostics.CodeAnalysis;
 using System.Numerics;
 using System.Runtime.CompilerServices;
 using SixLabors.ImageSharp.Formats;
@@ -19,6 +20,7 @@ namespace SixLabors.ImageSharp.Advanced
     /// None of the methods in this class should ever be called, the code only has to exist at compile-time to be picked up by the AoT compiler.
     /// (Very similar to the LinkerIncludes.cs technique used in Xamarin.Android projects.)
     /// </summary>
+    [ExcludeFromCodeCoverage]
     internal static class AotCompilerTools
     {
         static AotCompilerTools()
diff --git a/tests/Directory.Build.targets b/tests/Directory.Build.targets
index 40347763d..26baee07e 100644
--- a/tests/Directory.Build.targets
+++ b/tests/Directory.Build.targets
@@ -29,7 +29,7 @@
     <CollectCoverage>true</CollectCoverage>
     <UseSourceLink>true</UseSourceLink>
     <CoverletOutputFormat>opencover</CoverletOutputFormat>
-    <!--Ouput injects target framework into name despite explicit config. See build yml-->
+    <!--Output injects target framework into name despite explicit config. See build yml-->
     <CoverletOutput>$(MSBuildThisFileDirectory)..\coverage.xml</CoverletOutput>
     <!--Used by coverlet dues to reference issues with SixLabors.Core-->
     <!--https://github.com/tonerdo/coverlet/blob/master/Documentation/KnowIssues.md#4-failed-to-resolve-assembly-during-instrumentation-->
@@ -40,8 +40,8 @@
     <!--Test Dependencies-->
     <PackageReference Update="BenchmarkDotNet" Version="0.12.0" />
     <PackageReference Update="Colourful" Version="2.0.3" />
-    <PackageReference Update="coverlet.collector" Version="1.1.0"/>
-    <PackageReference Update="coverlet.msbuild" Version="2.8.0" />
+    <PackageReference Update="coverlet.collector" Version="1.1.0" PrivateAssets="All"/>
+    <PackageReference Update="coverlet.msbuild" Version="2.8.0" PrivateAssets="All"/>
     <PackageReference Update="Magick.NET-Q16-AnyCPU" Version="7.14.4" />
     <PackageReference Update="Microsoft.NET.Test.Sdk" Version="16.4.0" />
     <PackageReference Update="Moq" Version="4.10.0" />
diff --git a/tests/ImageSharp.Benchmarks/ImageSharp.Benchmarks.csproj b/tests/ImageSharp.Benchmarks/ImageSharp.Benchmarks.csproj
index 34f517500..edadf711d 100644
--- a/tests/ImageSharp.Benchmarks/ImageSharp.Benchmarks.csproj
+++ b/tests/ImageSharp.Benchmarks/ImageSharp.Benchmarks.csproj
@@ -8,6 +8,7 @@
     <TargetFrameworks>netcoreapp3.1;netcoreapp2.1;net472</TargetFrameworks>
     <GenerateProgramFile>false</GenerateProgramFile>
     <!--Used to hide test project from dotnet test-->
+    <IsTestProject>false</IsTestProject>
   </PropertyGroup>
 
   <ItemGroup>