From the root folder run the following command
dotnet test
Or if you want to skip building all the project just run the following command,specifying the exact unit test project to run
dotnet test XamarinUnitTesting.UnitTests/XamarinUnitTesting.UnitTests.csproj
In case of successful execution, your output should be the following
Test run for /Users/my_user/Sources/xamarin-unittesting/XamarinUnitTesting.UnitTests/bin/Debug/net5.0/XamarinUnitTesting.UnitTests.dll (.NETCoreApp,Version=v5.0)
Microsoft (R) Test Execution Command Line Tool Version 16.10.0-preview-20210317-02
Copyright (c) Microsoft Corporation. All rights reserved.
Starting test execution, please wait...
A total of 1 test files matched the specified pattern.
Passed! - Failed: 0, Passed: 3, Skipped: 0, Total: 3, Duration: - /Users/my_user/Sources/xamarin-unittesting/XamarinUnitTesting.UnitTests/bin/Debug/net5.0/XamarinUnitTesting.UnitTests.dll (net5.0)
After referencing the Xamarin.CommunityToolkit package at XamarinUnitTesting and XamarinUnitTesting.UnitTests project, the unit tests are no longer compilable/executable:
/usr/local/share/dotnet/sdk/6.0.100-preview.3.21202.5/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.DefaultItems.targets(362,5): error NETSDK1136: The target platform must be set to Windows (usually by including '-windows' in the TargetFramework property) when using Windows Forms or WPF, or referencing projects or packages that do so. [/Users/my_user/Sources/xamarin-unittesting/XamarinUnitTesting.UnitTests/XamarinUnitTesting.UnitTests.csproj]
The issue is described here and the workaround here
<PropertyGroup>
<TargetFramework>netcoreapp3.1</TargetFramework>
<GenerateErrorForMissingTargetingPacks>false</GenerateErrorForMissingTargetingPacks>
</PropertyGroup>