<PackageReference Include="NUnit" Version="3.13.3" />

TestProgressReporter

public class TestProgressReporter : ITestListener
TestProgressReporter translates ITestListener events into the async callbacks that are used to inform the client software about the progress of a test run.
public TestProgressReporter(ICallbackEventHandler handler)

Initializes a new instance of the TestProgressReporter class.

public void SendMessage(TestMessage message)

Called when a test produces a message to be sent to listeners

public void TestFinished(ITestResult result)

Called when a test has finished. Sends a result summary to the callback. to

public void TestOutput(TestOutput output)

Called when a test produces output for immediate display

public void TestStarted(ITest test)

Called when a test has just started