egil/bunit

@using AntDesign.Core.JsInterop.Modules.Components
@inherits AntDesignTestBase
@code {
    public Select_Tags_Tests()
    {
        JSInterop.Setup<AntDesign.JsInterop.DomRect>(JSInteropConstants.GetBoundingClientRect, _ => true)
            .SetResult(new AntDesign.JsInterop.DomRect());                     
        JSInterop.Setup<HtmlElement>(JSInteropConstants.GetDomInfo, _ => true)
            .SetResult(new HtmlElement());
        JSInterop.SetupVoid(JSInteropConstants.AddPreventKeys, _ => true);        
        JSInterop.SetupVoid(JSInteropConstants.AddElementTo, _ => true);        
        #if !NET6_0_OR_GREATER
        JSInterop.SetupVoid(JSInteropConstants.Focus, _ => true).SetVoidResult();
        #else
        JSInterop.SetupVoid("Blazor._internal.domWrapper.focus", _ => true).SetVoidResult();
        #endif        
    }

    [Fact]
    public async Task Single_tag_creation() //issue #1645
    {
        //Arrange

        JSInterop.Setup<OverlayPosition>(JSInteropConstants.OverlayComponentHelper.AddOverlayToContainer, _ => true)
            .SetResult(new OverlayPosition() { Top = 0, Left = 0, ZIndex = 5000, Placement = Placement.BottomLeft });               


        var cut = Render<AntDesign.Select<string, string>>(
        @<AntDesign.Select Mode="tags"
            TItemValue="string"
            TItem="string"        
            EnableSearch>
            <SelectOptions>                        
                <SelectOption TItemValue="string" TItem="string" Value="@("1")" Label="1" />            
            </SelectOptions>
    </AntDesign.Select>
    );
        //Act
        //overlay.
        var input = cut.Find("input.ant-select-selection-search-input");        

        input.Input("A"); //await element.FocusAsync() is called by Select here
        cut.WaitForState(() => cut.Instance.ActiveOption is not null);        


        await Task.Delay(100);
        input.KeyUp("ENTER");
        await Task.Delay(1);
        input.Input("B");
        await Task.Delay(1);
        input.KeyUp("ENTER");
        await Task.Delay(1);
        input.Input("C");
        await Task.Delay(1);
        input.KeyUp("ENTER");
        await Task.Delay(1);
        var addedTags = cut.FindAll("span.ant-select-selection-item-content")
            .Where(d => d.TextContent.Trim() == "B");
        //Assert
        addedTags.Should().HaveCount(1);
    }
}