Could you please help me in writing unit test cases for this component?

[NiranjanRK22]

AddUserpage.txt

[linkdotnet]

Hey @NiranjanRK22.

Could you maybe explain what you try to achieve? I checked your text file and there are plenty of options for a unit test.
Maybe you can tell where you are struggling with.

If you look into the documentation maybe you find the answer to your question.
Also it would be helpful to have a small snippet directly inside the discussion rather than an attached file. So it is easier to quote specific code section etc.

[NiranjanRK22]

Hey @linkdotnet ,

Sure, Will do that. Could you please help me with writing test cases for the dropdown in the above file?

[linkdotnet]

Sure. What is your exact problem here? Do you want to check that the roles of your viewmodel are in the select element?
Basically you have to do a few things

1. Create a view model which you then inject into your Component. You can see here how this is done
2. To get the select you can use var selectElement = cut.Find("select").Unwrap() as IHtmlSelectElement Of course if you have multiple select elements you should use an Id or a class. But with that you have access to all selectElement.Options which should reflect all your roles from the ViewModel.

So very simplified something like that:

[Fact]
public void Test()
{
   this.AddTestAuthorization().SetAuthorized("username"); // Needed for the AuthorizeAttribute
   // Setup our test data aka ViewModel
   var viewModel = new ViewModel
   {
       Roles = new string[] { ... },
       User = new User { ... },
   };
   Services.AddScoped(_ => viewModel); // Put our ViewModel in the DI container
   var cut = RenderComponent<MyComponent>();

   var select = cut.Find("select").Unwrap() as IHtmlSelectElement;

   select.Options.Length.Should().Be(3); // Depends how many roles you have setup in the ViewModel
   select.Options[0].Value.Should().Be("Admin"); // Depends how you setup the ViewModel
}

I can't really help you further for many reasons: For staterts yiz did not share the ViewModel nor the base class you are deriving from.
So I would suggest try to implement the test and if you have a specific issue we can look together.

As you also have async stuff in your code, you might want to have a look at this.