duempelkas/tests/Duempelkas.Tests/BookingDateInputTests.cs

using Bunit;
using Duempelkas.App.Components;
using Xunit;

namespace Duempelkas.Tests;

public class BookingDateInputTests
{
    [Fact]
    public void DateIsValidatedOnLeavingField_WithoutInterruptingNativeCalendar()
    {
        using var context = new BunitContext();
        var value = "2025-12-31";
        var field = context.Render<BookingDateInput>(p => p
            .Add(x => x.Value, value).Add(x => x.ValueChanged, next => value = next));
        field.Find("input").Input("2026-01-01");
        Assert.Equal("2025-12-31", value);
        field.Find("input").Blur();
        Assert.Equal("2026-01-01", value);
        field.Render(p => p.Add(x => x.Value, value));
        // The browser owns the edited value; avoid resetting its calendar by writing it back.
        Assert.Equal("2025-12-31", field.Find("input").GetAttribute("value"));
        field.Render(p => p.Add(x => x.Value, "2027-02-03"));
        Assert.Equal("2027-02-03", field.Find("input").GetAttribute("value"));
    }
}