// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

#nullable disable

namespace System.Windows.Forms.Tests;

// NB: doesn't require thread affinity
public class DockingAttributeTests
{
    [Fact]
    public void DockingAttribute_Ctor_Default()
    {
        DockingAttribute attribute = new();
        Assert.Equal(DockingBehavior.Never, attribute.DockingBehavior);
        Assert.True(attribute.IsDefaultAttribute());
    }

    [Theory]
    [EnumData<DockingBehavior>]
    [InvalidEnumData<DockingBehavior>]
    public void DockingAttribute_Ctor_DockingBehavior(DockingBehavior dockingBehavior)
    {
        DockingAttribute attribute = new(dockingBehavior);
        Assert.Equal(dockingBehavior, attribute.DockingBehavior);
        Assert.Equal(dockingBehavior == DockingBehavior.Never, attribute.IsDefaultAttribute());
    }

    [Fact]
    public void DockingAttribute_Default_Get_ReturnsExpected()
    {
        DockingAttribute attribute = DockingAttribute.Default;
        Assert.Same(attribute, DockingAttribute.Default);
        Assert.Equal(DockingBehavior.Never, attribute.DockingBehavior);
        Assert.True(attribute.IsDefaultAttribute());
    }

    public static IEnumerable<object[]> Equals_TestData()
    {
        DockingAttribute attribute = new(DockingBehavior.Ask);
        yield return new object[] { attribute, attribute, true };
        yield return new object[] { attribute, new DockingAttribute(DockingBehavior.Ask), true };
        yield return new object[] { attribute, new DockingAttribute(DockingBehavior.Never), false };

        yield return new object[] { attribute, new(), false };
        yield return new object[] { attribute, null, false };
    }

    [Theory]
    [MemberData(nameof(Equals_TestData))]
    public void DockingAttribute_Equals_Invoke_ReturnsExpected(DockingAttribute attribute, object other, bool expected)
    {
        Assert.Equal(expected, attribute.Equals(other));
        if (other is DockingAttribute)
        {
            Assert.Equal(expected, attribute.GetHashCode().Equals(other.GetHashCode()));
        }
    }
}
