diff --git a/.github/workflows/cicd.yml b/.github/workflows/cicd.yml
index db51c1a..8a4b34d 100644
--- a/.github/workflows/cicd.yml
+++ b/.github/workflows/cicd.yml
@@ -15,8 +15,8 @@ jobs:
       with:
         path: ~/.nuget/packages
         key: nuget-${{ hashFiles('**/*.csproj') }}
-    - name: Build
-      run: dotnet build -warnaserror
+    - name: Build and test
+      run: dotnet test -warnaserror
     - name: Build nuget
       if: github.event_name == 'workflow_dispatch'
       run: dotnet pack PolyMod.csproj -o nuget
diff --git a/PolyMod.sln b/PolyMod.sln
index 2e325f4..668e23f 100644
--- a/PolyMod.sln
+++ b/PolyMod.sln
@@ -3,7 +3,9 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.4.33205.214
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PolyMod", "PolyMod.csproj", "{58B09361-FD7A-48F1-82E1-E2359ADA512F}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PolyMod", "src\PolyMod.csproj", "{58B09361-FD7A-48F1-82E1-E2359ADA512F}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tests", "tests\Tests.csproj", "{85432E7B-2023-477C-861E-0141E8974DDC}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -12,6 +14,8 @@ Global
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 		{58B09361-FD7A-48F1-82E1-E2359ADA512F}.IL2CPP|Any CPU.ActiveCfg = IL2CPP|Any CPU
 		{58B09361-FD7A-48F1-82E1-E2359ADA512F}.IL2CPP|Any CPU.Build.0 = IL2CPP|Any CPU
+		{85432E7B-2023-477C-861E-0141E8974DDC}.IL2CPP|Any CPU.ActiveCfg = IL2CPP|Any CPU
+		{85432E7B-2023-477C-861E-0141E8974DDC}.IL2CPP|Any CPU.Build.0 = IL2CPP|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/nuget.config b/nuget.config
new file mode 100644
index 0000000..6ebe1ff
--- /dev/null
+++ b/nuget.config
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <add key="NuGet" value="https://api.nuget.org/v3/index.json" />
+    <add key="BepInEx" value="https://nuget.bepinex.dev/v3/index.json" />
+    <add key="Samboy" value="https://nuget.samboy.dev/v3/index.json" />
+    <add key="PolyMod" value="https://polymod.dev/nuget/v3/index.json" />
+  </packageSources>
+</configuration>
\ No newline at end of file
diff --git a/PolyMod.csproj b/src/PolyMod.csproj
similarity index 85%
rename from PolyMod.csproj
rename to src/PolyMod.csproj
index 072a080..fe88ce2 100644
--- a/PolyMod.csproj
+++ b/src/PolyMod.csproj
@@ -3,12 +3,6 @@
         <TargetFramework>net6.0</TargetFramework>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
-        <RestoreAdditionalProjectSources>
-            https://api.nuget.org/v3/index.json;
-            https://nuget.bepinex.dev/v3/index.json;
-            https://nuget.samboy.dev/v3/index.json;
-            https://polymod.dev/nuget/v3/index.json;
-        </RestoreAdditionalProjectSources>
         <Configurations>IL2CPP</Configurations>
         <Version>1.2.0-pre</Version>
         <PolytopiaVersion>2.13.0.14218</PolytopiaVersion>
diff --git a/tests/Tests.csproj b/tests/Tests.csproj
new file mode 100644
index 0000000..9aa362f
--- /dev/null
+++ b/tests/Tests.csproj
@@ -0,0 +1,35 @@
+<Project Sdk="Microsoft.NET.Sdk">
+    <PropertyGroup>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+        <RootNamespace>tests</RootNamespace>
+        <TargetFramework>net8.0</TargetFramework>
+        <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
+        <!--
+        To enable the Microsoft Testing Platform 'dotnet test' experience, add property:
+        <TestingPlatformDotnetTestSupport>true</TestingPlatformDotnetTestSupport>
+
+        To enable the Microsoft Testing Platform native command line experience, add property:
+        <UseMicrosoftTestingPlatformRunner>true</UseMicrosoftTestingPlatformRunner>
+
+        For more information on Microsoft Testing Platform support in xUnit.net, please visit:
+        https://xunit.net/docs/getting-started/v3/microsoft-testing-platform
+        -->
+    </PropertyGroup>
+
+    <ItemGroup>
+        <Content Include="xunit.runner.json" CopyToOutputDirectory="PreserveNewest" />
+    </ItemGroup>
+
+    <ItemGroup>
+        <Using Include="Xunit" />
+    </ItemGroup>
+
+    <ItemGroup>
+        <ProjectReference Include="../src/PolyMod.csproj" />
+        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
+        <PackageReference Include="xunit.v3" Version="3.0.1" />
+        <PackageReference Include="xunit.runner.visualstudio" Version="3.1.4" />
+    </ItemGroup>
+
+</Project>
diff --git a/tests/UnitTest1.cs b/tests/UnitTest1.cs
new file mode 100644
index 0000000..a54dd9a
--- /dev/null
+++ b/tests/UnitTest1.cs
@@ -0,0 +1,10 @@
+namespace Tests;
+
+public class UnitTest1
+{
+    [Fact]
+    public void Test1()
+    {
+        Assert.True(true);
+    }
+}
diff --git a/tests/xunit.runner.json b/tests/xunit.runner.json
new file mode 100644
index 0000000..249d815
--- /dev/null
+++ b/tests/xunit.runner.json
@@ -0,0 +1,3 @@
+{
+    "$schema": "https://xunit.net/schema/current/xunit.runner.schema.json"
+}