<PackageReference Include="NUnit" Version="4.3.2" />

TestOutputEvent

public class TestOutputEvent : Event
TestOutputEvent holds information needed to call the TestOutput method.
using NUnit.Framework.Interfaces; using System.Runtime.CompilerServices; namespace NUnit.Framework.Internal.Execution { [NullableContext(1)] [Nullable(0)] public class TestOutputEvent : Event { private readonly TestOutput _output; public TestOutputEvent(TestOutput output) { _output = output; } public override void Send(ITestListener listener) { listener.TestOutput(_output); } } }