Avalonia/tests/Perspex.Markup.Xaml.UnitTests/Xaml/BasicTests.cs

// Copyright (c) The Perspex Project. All rights reserved.
// Licensed under the MIT license. See licence.md file in the project root for full license information.

using Perspex.Controls;
using Perspex.UnitTests;
using Xunit;

namespace Perspex.Markup.Xaml.UnitTests.Xaml
{
    public class BasicTests
    {
        [Fact]
        public void Named_Control_Is_Added_To_NameScope()
        {
            using (UnitTestApplication.Start(TestServices.StyledWindow))
            {
                var xaml = @"
<Window xmlns='https://github.com/perspex'
             xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'>
    <Button Name='button'>Foo</Button>
</Window>";
                var loader = new PerspexXamlLoader();
                var window = (Window)loader.Load(xaml);
                var button = window.FindControl<Button>("button");

                Assert.Equal("Foo", button.Content);
            }
        }

        [Fact]
        public void Control_Is_Added_To_Parent_Before_Properties_Are_Set()
        {
            using (UnitTestApplication.Start(TestServices.StyledWindow))
            {
                var xaml = @"
<Window xmlns='https://github.com/perspex'
             xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'
             xmlns:local='clr-namespace:Perspex.Markup.Xaml.UnitTests.Xaml;assembly=Perspex.Markup.Xaml.UnitTests'>
    <local:InitializationOrderTracker Width='100'/>
</Window>";
                var loader = new PerspexXamlLoader();
                var window = (Window)loader.Load(xaml);
                var tracker = (InitializationOrderTracker)window.Content;

                var attached = tracker.Order.IndexOf("AttachedToLogicalTree");
                var widthChanged = tracker.Order.IndexOf("Property Width Changed");

                Assert.NotEqual(-1, attached);
                Assert.NotEqual(-1, widthChanged);
                Assert.True(attached < widthChanged);
            }
        }
    }
}