ScadaBridge/tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/Shared/TemplateFolderTreeRevealKeysTests.cs

using Bunit;
using ZB.MOM.WW.ScadaBridge.CentralUI.Components.Shared;
using ZB.MOM.WW.ScadaBridge.Commons.Entities.Templates;

namespace ZB.MOM.WW.ScadaBridge.CentralUI.Tests.Shared;

/// <summary>
/// Covers the additive <c>RevealKeys</c> parameter: the tree opens the ancestors of
/// a caller-named node when no filter is active, and an active filter still wins.
/// </summary>
public class TemplateFolderTreeRevealKeysTests : BunitContext
{
    public TemplateFolderTreeRevealKeysTests()
    {
        JSInterop.Mode = JSRuntimeMode.Loose;
    }

    private static (List<TemplateFolder> folders, List<Template> templates) Catalogue()
    {
        var a = new TemplateFolder("A") { Id = 1 };
        var b = new TemplateFolder("B") { Id = 2, ParentFolderId = 1 };
        var other = new TemplateFolder("Other") { Id = 3 };
        var t7 = new Template("Deep") { Id = 7, FolderId = 2 };
        var t8 = new Template("Elsewhere") { Id = 8, FolderId = 3 };
        return (new() { a, b, other }, new() { t7, t8 });
    }

    [Fact]
    public void WithoutRevealKeys_AllFoldersStartCollapsed()
    {
        var (f, t) = Catalogue();
        var cut = Render<TemplateFolderTree>(p => p.Add(x => x.Folders, f).Add(x => x.Templates, t));
        Assert.DoesNotContain("Deep", cut.Markup);
        Assert.DoesNotContain("Elsewhere", cut.Markup);
    }

    [Fact]
    public void RevealKeys_ExpandsOnlyTheAncestorsOfTheListedTemplate()
    {
        var (f, t) = Catalogue();
        var cut = Render<TemplateFolderTree>(p => p
            .Add(x => x.Folders, f).Add(x => x.Templates, t)
            .Add(x => x.RevealKeys, (IReadOnlyCollection<string>)new[] { "t:7" }));
        Assert.Contains("Deep", cut.Markup);           // A → B expanded
        Assert.DoesNotContain("Elsewhere", cut.Markup); // Other untouched
    }

    [Fact]
    public void ActiveFilter_WinsOverRevealKeys()
    {
        var (f, t) = Catalogue();
        var cut = Render<TemplateFolderTree>(p => p
            .Add(x => x.Folders, f).Add(x => x.Templates, t)
            .Add(x => x.RevealKeys, (IReadOnlyCollection<string>)new[] { "t:7" })
            .Add(x => x.Filter, "Elsewhere"));
        Assert.Contains("Elsewhere", cut.Markup);
        Assert.DoesNotContain("Deep", cut.Markup);
    }
}