Unturned.uTest 0.0.1

Work in progress...

uTest for Unturned

uTest is a Unit Testing solution for Unturned plugins and modules, client or server-side.

When you choose to run your tests, an instance of Unturned opens, executes the tests, then closes as quick as possible, reporting results to the IDE.

Features

Adaptability

Run tests using U3DS (the Unturned 3 Dedicated Server), the Unturned client through Steam, or even the U3-SDK.

Simulates Players

For tests ran on U3DS, allocate dummy players to the tests for checking features that require players. Dummies can be simulated either using a system inspired by DiFFoZ's Dummies, or complete separate instances of Unturned.

Assertions (xunit)

uTest uses xunit assertions as a standalone package, so you don't have to learn yet another unit testing library's assertion syntax.

Source Generation

uTest uses source generation to statically discover tests so what you see in your IDE is what is ran.

Microsoft Testing Platform

uTest is built on the Microsoft.Testing.Platform framework which provides a modern unit test API that can run on basically any device and supports most modern IDEs.

.NET Standard or Framework

uTest supports projects targeting either .NET Framework 4.7.1+ or .NET Standard 2.1. It also works with multi-targeting.

Integration

uTest integrates into any IDE's that support MTP, including Visual Studio, Visual Studio Code, and JetBrains Rider. MTP generates an executable file so you can also just run the tests using the dotnet .\test\file.dll command. It does not work with dotnet test just yet due to .NET Standard libraries not being executable.

TRX Reporting

uTest supports TRX report generation via the --report-trx command line argument. You need to reference the MTP TRX extension as well.

<PackageReference Include="Microsoft.Testing.Extensions.TrxReport" Version="*" />

Examples

// all tests must implement ITestClass or one of its child interfaces
[Test]
public class PlayerTests : ITestClassSetup, ITestClassTearDown
{
    private IDisposable _something;

    // special callbacks use the ITestClassXxxx interfaces
    public async ValueTask SetupAsync(ITestContext testContext, CancellationToken token)
    {
        await testContext.ConfigureAsync(
            b => b.WithPlayers(4)
                  .WithTime(12, 0, 0, timeProgression: false)
        );

        _something = /* whatever */;
    }

    public async ValueTask TearDownAsync(CancellationToken token)
    {
        await _something.DisposeAsync();
    }

    [Test]
    public void ServerHasPlayers()
    {
        Assert.NotEmpty(Provider.clients);
    }
    
    // parameters can be filled using [TestArgs] attributes
    [Test]
    [TestArgs(1, 2, 3)]
    [TestArgs(4, -2, 2)]
    public void CorrectSum(int l, int r, int sum)
    {
        Assert.Equals(sum, l + r);
    }
    
    // they can also use the [Set] and [Range] attributes
    [Test]
    public void StressTest([Set(1, 5, 10)] int playerCount, [Set(true, false)] bool isUiReworkDone)
    {
        // this test will run 3*2 = 6 times
    }
    
    // generic type parameters can use [Set] and [TypeArgs] attributes.
    // they can also go on the test class
    [Test]
    public async Task ParseDecimal<[Set(typeof(decimal), typeof(double), typeof(float))] T>(
        
        [Range(-10.0, 10.0, step: 0.1)]
        string decimalStr
    )
    {
        // ...
    }
}

Installation

Put the following properties and references in your csproj file:

<PropertyGroup>

    <IsUnturnedTestProject>True</IsUnturnedTestProject>

</PropertyGroup>

<ItemGroup>

    <PackageReference Include="Unturned.uTest" Version="*" />
    <PackageReference Include="Unturned.uTest.Runner" Version="*" />

</ItemGroup>

Visual Studio

No changes are required.

Visual Studio Code (C# Extension) Installation

Enable the Use Testing Platform Protocol setting: dotnet.testWindow.useTestingPlatformProtocol.

Rider

Follow instructions here for TUnit (it also uses MTP).

Others

Run dotnet ./TestProject/bin/Debug/netstandard2.1/TestProject.dll --treenode-filter [see below]. The path to the dll may vary.

Filtering

Microsoft.Testing.Platform supports filters for running specific tests.

Tree-Node

uTest supports MTP tree-node filters to select tests easier with the --treenode-filter command line argument. The basic format is as follows:

/Assembly/Namespace/Type/Method

If the method has parameters it may look more like this: /Assembly/Namespace/Type/Method%28System.String%29

But usually you can just worry about the name:

All tests in Project.Tests.PlayerTests

/TestProject/Project.Tests/PlayerTests/**

All tests named ServerHasPlayers in Project.Tests.PlayerTests

/TestProject/Project.Tests/PlayerTests/ServerHasPlayers*/**

The full format also includes generic type parameters and parameter values. More examples are here.

UID List

uTest also supports the MTP UID list argument with the --filter-uid command line argument.

The format is a bit complex to allow for globally unique stable IDs, but it is described here.

Legal

Unturned.uTest - An integration testing framework for Unturned.
Copyright (C) 2026  Daniel Willett

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.