Add support for Assets

[LasseHerget]

Hey,

I need to test a component that iterates over the Assets property.
I am currently struggling to figure out how to seed these Assets in bunit.

I already saw that this has been suggested for net9.0, and I am working in net10.0.
However that issue has been closed, because the usecase under test was (probably) appending the hash to the path.
#1612

But my usecase to test is an iteration over these assets.

So my question is:
How exactly would I correctly set these assets up in bUnit?

Scenario

public partial class AssetComponent : ComponentBase
{
    private IReadOnlyList<string> SubresourceNames { get; set; } 
   
    protected override void OnInitialized()
    {
        SubresourceNames = Assets
            .Select(asset => asset.Properties?.Single(property => property.Name == "label")?.Value) // The "label" property contains the relative file path.
            .Where( .. )
            .ToList();
    }
}

@foreach (var assetName in SubresourceNames)
{
  <DoStuff attribute="@assetName" />
}

[linkdotnet]

Hey @LasseHerget I don't think there is a way of currently doing that in bUnit.
Well - you could override the renderer and stuff :D But for all practical purposes: We have to implement that.

[LasseHerget]

@linkdotnet Thanks for the info. After seeing that first Issue, I was afraid this would be the answer.
I'm gonna try to find a work-around. If I manage to get it to run, I'll share it here. Meanwhile I added a comment to #1612, that it has been reopened here.

[linkdotnet]

@LasseHerget You could create a humble object that does that for you and "fake it out" in a test:

public interface IAssetService
{
  public IReadOnlyList<string> GetSubresourceNames(ResourceAssetCollection assets);
}

And use it in your AssetComponent:

public partial class AssetComponent(IAssetService AssetService) : ComponentBase
{
    private IReadOnlyList<string> SubresourceNames { get; set; } 
   
    protected override void OnInitialized()
    {
        SubresourceNames = AssetService.GetSubresourceNames(this.Assets);
    }
}
...

This would allow you effectively to fake everything

[linkdotnet]

I will make a preview release in a few minutes.

Edit: https://www.nuget.org/packages/bunit/2.8.4-preview

[LasseHerget]

Hey, I just tested 2.8.4-preview in my private repository and it does indeed resolve my issue.
Thanks again @linkdotnet for the very quick help here! Much appreciated! :)