bunit code coverage analyzers

[saisakethkommu]

I have a blazer web assembly app. I'm new to bunit testing and looking to see if there are any test analyzers which help in provide a code coverage happening within each file

[linkdotnet]

Hey @saisakethkommu
Two points that are important to highlight here:

1. bUnit itself is a library that gives you tools to write unit tests for your Blazor Components. It sits on a test runner like xUnit, nUnit order MSTest.
2. Blazor Components (.razor files) are translated to regular C# Code by the compiler. They are not magical in any way.

That said, you can use coverlet which comes by default in the xUnit template. See more here: https://github.com/coverlet-coverage/coverlet

If you use Rider/Resharper, you can easily execute the code coverage, and it will happily show you the result for your razor files as well.

[chrisatjacobs]

Hello @linkdotnet
I'm working on generating patterns for our Blazor Hybrid app that uses MudBlazor.
I've figured out how cover most use cases and started moving faster.
So, I wanted to check how much the code coverage increased on the razor files based on my BUnit tests on top of XUnit.

I ran the same commands I have been for a while and nothing changed.
Here are the commands:
dotnet test -l trx --collect:"XPlat Code Coverage" -c Debug
reportgenerator -reports:".\**\TestResults\**\coverage.cobertura.xml" -targetdir:"coverage" -reporttypes:Html
Before hand, installed the dotnet tool for the reportgenerator
dotnet tool install -g dotnet-reportgenerator-globaltool

I've tried searching the internet and this does not seem to be covered anywhere.
I'm working ahead of a Sonarqube implementation and wanted to get my coverage up before it arrives.
Here is a post I found based on Razor code coverage: https://community.sonarsource.com/t/include-code-coverage-of-blazor-component-source-file-in-my-sonarqube-report/30114

Is there report generator that shows the Razor file coverage percentage?
There coverlet-collector might be pulling data, but I cannot seem to find reports to show the coverage.

To be clear, the Test Runner in VS2022 does allow for running the test and debug.

Thanks in advance for any feedback.

Regards

[linkdotnet]

I know the guys from SonarQube (CC @andrei-epure-sonarsource) did make a big leap for razor files.

Currently, I am not at a "real PC" (just my smartphone) to crosscheck the whole coverlet part.
I think I remember that I made that work with GitHub Actions (which doesn't use the dotnet-reportgenerator-globaltool though).