Output the component render to unit test output

[akovac35]

Thanks for creating this library.

I am planning to use it and, reviewing the documentation, I was not able to find much information about writing the component render to unit test output easily. For example:

https://github.com/akovac35/Logging#unit-test-logging
https://github.com/akovac35/Logging.Samples/blob/master/TestApp/TestLoggingExamples.cs

I think it would help quite a lot if a developer would be able to see the component render while developing the test, for quick test updates. It would make sense for the render object to contain a method which would write the render result to unit test output.

Is this something we can contribute? If so, please suggest the classes to update.

[egil]

Hi @akovac35

Thank you. I think I understand what you are saying. You want a way get ILogger messages from components and the Blazor renderer while running unit tests, right?

If that's the case, I actually have something in place already for xUnit, although it is not yet documented, as you have discovered.

To use it, do the following:

public class MyComponentTest : TestContext
{
  public MyComponentTest(ITestOutputHelper output)
  {
    // Wraps ITestOutputHelper in a custom ILoggerFactory, which will then be used by components and blazors renderer.
    Services.AddXunitLogger(output, minimumLogLevel: LogLevel.Debug);
  }

  //...
}

You are very welcome to improve on the impementation of this, and if you want to provide a similar experience for MSTest/NUnit, please let me know so we we can discuss design details.

[akovac35]

Thanks @egil, I will check in a few days.