Avalonia/tests/Avalonia.Interactivity.UnitTests/RoutedEventRegistryTests.cs

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

using System.Collections.Generic;
using Avalonia.Controls;
using Avalonia.Input;
using Xunit;

namespace Avalonia.Interactivity.UnitTests
{
    public class RoutedEventRegistryTests
    {
        [Fact]
        public void Pointer_Events_Should_Be_Registered()
        {
            var expectedEvents = new List<RoutedEvent> { InputElement.PointerPressedEvent, InputElement.PointerReleasedEvent }; 
            var registeredEvents = RoutedEventRegistry.Instance.GetRegistered<InputElement>();
            Assert.Contains(registeredEvents, expectedEvents.Contains);
        }

        [Fact]
        public void ClickEvent_Should_Be_Registered_On_Button()
        {
            var expectedEvents = new List<RoutedEvent> { Button.ClickEvent };
            var registeredEvents = RoutedEventRegistry.Instance.GetRegistered<Button>();
            Assert.Contains(registeredEvents, expectedEvents.Contains);
        }

        [Fact]
        public void ClickEvent_Should_Not_Be_Registered_On_ContentControl()
        {
            // force ContentControl type to be loaded
            new ContentControl();
            var expectedEvents = new List<RoutedEvent> { Button.ClickEvent };
            var registeredEvents = RoutedEventRegistry.Instance.GetRegistered<ContentControl>();
            Assert.DoesNotContain(registeredEvents, expectedEvents.Contains);
        }

        [Fact]
        public void InputElement_Events_Should_Not_Be_Registered_On_Button()
        {
            // force Button type to be loaded
            new Button();
            var expectedEvents = new List<RoutedEvent> { InputElement.PointerPressedEvent, InputElement.PointerReleasedEvent };
            var registeredEvents = RoutedEventRegistry.Instance.GetRegistered<Button>();
            Assert.DoesNotContain(registeredEvents, expectedEvents.Contains);
        }
    }
}