// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using WinForms.Common.Tests;
using Xunit;

namespace System.Windows.Forms.Tests
{
    public class DockPaddingEdgesTests : IClassFixture<ThreadExceptionFixture>
    {
        [WinFormsTheory]
        [InlineData(-2, -2, -2, -2, 0, 0, 0, 0, 0)]
        [InlineData(-1, -1, -1, -1, 0, 0, 0, 0, 0)]
        [InlineData(0, -1, -1, -1, 0, 0, 0, 0, 0)]
        [InlineData(-1, 0, -1, -1, 0, 0, 0, 0, 0)]
        [InlineData(-1, -1, 0, -1, 0, 0, 0, 0, 0)]
        [InlineData(-1, -1, -1, 0, 0, 0, 0, 0, 0)]
        [InlineData(0, 0, 0, 0, 0, 0, 0, 0, 0)]
        [InlineData(1, 1, 1, 1, 1, 1, 1, 1, 1)]
        [InlineData(1, 2, 3, 4, 0, 1, 2, 3, 4)]
        public void DockPaddingEdges_Properties_Get_ReturnsExpected(int left, int top, int right, int bottom, int expectedAll, int expectedLeft, int expectedTop, int expectedRight, int expectedBottom)
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(left, top, right, bottom)
            };
            ScrollableControl.DockPaddingEdges padding = owner.DockPadding;
            Assert.Equal(expectedAll, padding.All);
            Assert.Equal(expectedLeft, padding.Left);
            Assert.Equal(expectedTop, padding.Top);
            Assert.Equal(expectedRight, padding.Right);
            Assert.Equal(expectedBottom, padding.Bottom);
        }

        [WinFormsTheory]
        [InlineData(-2, 0, -1)]
        [InlineData(-1, 0, -1)]
        [InlineData(0, 0, 0)]
        [InlineData(1, 1, 1)]
        public void DockPaddingEdges_All_SetWithOwner_GetReturnsExpected(int value, int expectedValue, int expectedPaddingAll)
        {
            using var owner = new ScrollableControl();
            ScrollableControl.DockPaddingEdges padding = owner.DockPadding;
            padding.All = value;
            Assert.Equal(expectedValue, padding.All);
            Assert.Equal(expectedValue, padding.Left);
            Assert.Equal(expectedValue, padding.Top);
            Assert.Equal(expectedValue, padding.Right);
            Assert.Equal(expectedValue, padding.Bottom);
            Assert.Equal(expectedPaddingAll, owner.Padding.All);
            Assert.Equal(expectedValue, owner.Padding.Left);
            Assert.Equal(expectedValue, owner.Padding.Top);
            Assert.Equal(expectedValue, owner.Padding.Right);
            Assert.Equal(expectedValue, owner.Padding.Bottom);
        }

        [WinFormsTheory]
        [CommonMemberData(nameof(CommonTestHelper.GetIntTheoryData))]
        public void DockPaddingEdges_All_SetWithoutOwner_GetReturnsExpected(int value)
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ICloneable original = owner.DockPadding;
            ScrollableControl.DockPaddingEdges padding = (ScrollableControl.DockPaddingEdges)original.Clone();
            padding.All = value;
            Assert.Equal(value, padding.All);
            Assert.Equal(value, padding.Left);
            Assert.Equal(value, padding.Top);
            Assert.Equal(value, padding.Right);
            Assert.Equal(value, padding.Bottom);
        }

        [WinFormsTheory]
        [InlineData(-2, 0)]
        [InlineData(-1, 0)]
        [InlineData(0, 0)]
        [InlineData(1, 1)]
        public void DockPaddingEdges_Left_SetWithOwner_GetReturnsExpected(int value, int expectedLeft)
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ScrollableControl.DockPaddingEdges padding = owner.DockPadding;
            padding.Left = value;
            Assert.Equal(0, padding.All);
            Assert.Equal(expectedLeft, padding.Left);
            Assert.Equal(2, padding.Top);
            Assert.Equal(3, padding.Right);
            Assert.Equal(4, padding.Bottom);
            Assert.Equal(-1, owner.Padding.All);
            Assert.Equal(expectedLeft, owner.Padding.Left);
            Assert.Equal(2, owner.Padding.Top);
            Assert.Equal(3, owner.Padding.Right);
            Assert.Equal(4, owner.Padding.Bottom);
        }

        [WinFormsTheory]
        [CommonMemberData(nameof(CommonTestHelper.GetIntTheoryData))]
        public void DockPaddingEdges_Left_SetWithoutOwner_GetReturnsExpected(int value)
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ICloneable original = owner.DockPadding;
            ScrollableControl.DockPaddingEdges padding = (ScrollableControl.DockPaddingEdges)original.Clone();
            padding.Left = value;
            Assert.Equal(0, padding.All);
            Assert.Equal(value, padding.Left);
            Assert.Equal(2, padding.Top);
            Assert.Equal(3, padding.Right);
            Assert.Equal(4, padding.Bottom);
        }

        [WinFormsTheory]
        [InlineData(-2, 0)]
        [InlineData(-1, 0)]
        [InlineData(0, 0)]
        [InlineData(1, 1)]
        public void DockPaddingEdges_Top_SetWithOwner_GetReturnsExpected(int value, int expectedTop)
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ScrollableControl.DockPaddingEdges padding = owner.DockPadding;
            padding.Top = value;
            Assert.Equal(0, padding.All);
            Assert.Equal(1, padding.Left);
            Assert.Equal(expectedTop, padding.Top);
            Assert.Equal(3, padding.Right);
            Assert.Equal(4, padding.Bottom);
            Assert.Equal(-1, owner.Padding.All);
            Assert.Equal(1, owner.Padding.Left);
            Assert.Equal(expectedTop, owner.Padding.Top);
            Assert.Equal(3, owner.Padding.Right);
            Assert.Equal(4, owner.Padding.Bottom);
        }

        [WinFormsTheory]
        [CommonMemberData(nameof(CommonTestHelper.GetIntTheoryData))]
        public void DockPaddingEdges_Top_SetWithoutOwner_GetReturnsExpected(int value)
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ICloneable original = owner.DockPadding;
            ScrollableControl.DockPaddingEdges padding = (ScrollableControl.DockPaddingEdges)original.Clone();
            padding.Top = value;
            Assert.Equal(0, padding.All);
            Assert.Equal(1, padding.Left);
            Assert.Equal(value, padding.Top);
            Assert.Equal(3, padding.Right);
            Assert.Equal(4, padding.Bottom);
        }

        [WinFormsTheory]
        [InlineData(-2, 0)]
        [InlineData(-1, 0)]
        [InlineData(0, 0)]
        [InlineData(1, 1)]
        public void DockPaddingEdges_Right_SetWithOwner_GetReturnsExpected(int value, int expectedRight)
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ScrollableControl.DockPaddingEdges padding = owner.DockPadding;
            padding.Right = value;
            Assert.Equal(0, padding.All);
            Assert.Equal(1, padding.Left);
            Assert.Equal(2, padding.Top);
            Assert.Equal(expectedRight, padding.Right);
            Assert.Equal(4, padding.Bottom);
            Assert.Equal(-1, owner.Padding.All);
            Assert.Equal(1, owner.Padding.Left);
            Assert.Equal(2, owner.Padding.Top);
            Assert.Equal(expectedRight, owner.Padding.Right);
            Assert.Equal(4, owner.Padding.Bottom);
        }

        [WinFormsTheory]
        [CommonMemberData(nameof(CommonTestHelper.GetIntTheoryData))]
        public void DockPaddingEdges_Right_SetWithoutOwner_GetReturnsExpected(int value)
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ICloneable original = owner.DockPadding;
            ScrollableControl.DockPaddingEdges padding = (ScrollableControl.DockPaddingEdges)original.Clone();
            padding.Right = value;
            Assert.Equal(0, padding.All);
            Assert.Equal(1, padding.Left);
            Assert.Equal(2, padding.Top);
            Assert.Equal(value, padding.Right);
            Assert.Equal(4, padding.Bottom);
        }

        [WinFormsTheory]
        [InlineData(-2, 0)]
        [InlineData(-1, 0)]
        [InlineData(0, 0)]
        [InlineData(1, 1)]
        public void DockPaddingEdges_Bottom_SetWithOwner_GetReturnsExpected(int value, int expectedBottom)
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ScrollableControl.DockPaddingEdges padding = owner.DockPadding;
            padding.Bottom = value;
            Assert.Equal(0, padding.All);
            Assert.Equal(1, padding.Left);
            Assert.Equal(2, padding.Top);
            Assert.Equal(3, padding.Right);
            Assert.Equal(expectedBottom, padding.Bottom);
            Assert.Equal(-1, owner.Padding.All);
            Assert.Equal(1, owner.Padding.Left);
            Assert.Equal(2, owner.Padding.Top);
            Assert.Equal(3, owner.Padding.Right);
            Assert.Equal(expectedBottom, owner.Padding.Bottom);
        }

        [WinFormsTheory]
        [CommonMemberData(nameof(CommonTestHelper.GetIntTheoryData))]
        public void DockPaddingEdges_Bottom_SetWithoutOwner_GetReturnsExpected(int value)
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ICloneable original = owner.DockPadding;
            ScrollableControl.DockPaddingEdges padding = (ScrollableControl.DockPaddingEdges)original.Clone();
            padding.Bottom = value;
            Assert.Equal(0, padding.All);
            Assert.Equal(1, padding.Left);
            Assert.Equal(2, padding.Top);
            Assert.Equal(3, padding.Right);
            Assert.Equal(value, padding.Bottom);
        }

        public static IEnumerable<object[]> Equals_TestData()
        {
            ScrollableControl.DockPaddingEdges CreatePadding(int left, int top, int right, int bottom)
            {
                var owner = new ScrollableControl
                {
                    Padding = new Padding(left, top, right, bottom)
                };
                return owner.DockPadding;
            }
            ScrollableControl.DockPaddingEdges CreateClonedPadding(int left, int top, int right, int bottom)
            {
                ICloneable clonable = CreatePadding(left, top, right, bottom);
                return Assert.IsType<ScrollableControl.DockPaddingEdges>(clonable.Clone());
            }

            yield return new object[] { CreatePadding(1, 2, 3, 4), CreatePadding(1, 2, 3, 4), true };
            yield return new object[] { CreatePadding(1, 2, 3, 4), CreateClonedPadding(1, 2, 3, 4), true };
            yield return new object[] { CreatePadding(1, 2, 3, 4), CreatePadding(1, 1, 3, 4), false };
            yield return new object[] { CreatePadding(1, 2, 3, 4), CreateClonedPadding(1, 1, 3, 4), false };
            yield return new object[] { CreatePadding(1, 2, 3, 4), CreatePadding(1, 2, 2, 4), false };
            yield return new object[] { CreatePadding(1, 2, 3, 4), CreateClonedPadding(1, 2, 2, 4), false };
            yield return new object[] { CreatePadding(1, 2, 3, 4), CreatePadding(1, 2, 3, 5), false };
            yield return new object[] { CreatePadding(1, 2, 3, 4), CreateClonedPadding(1, 2, 3, 5), false };

            yield return new object[] { CreateClonedPadding(1, 2, 3, 4), CreatePadding(1, 2, 3, 4), true };
            yield return new object[] { CreateClonedPadding(1, 2, 3, 4), CreateClonedPadding(1, 2, 3, 4), true };
            yield return new object[] { CreateClonedPadding(1, 2, 3, 4), CreatePadding(1, 1, 3, 4), false };
            yield return new object[] { CreateClonedPadding(1, 2, 3, 4), CreateClonedPadding(1, 1, 3, 4), false };
            yield return new object[] { CreateClonedPadding(1, 2, 3, 4), CreatePadding(1, 2, 2, 4), false };
            yield return new object[] { CreateClonedPadding(1, 2, 3, 4), CreateClonedPadding(1, 2, 2, 4), false };
            yield return new object[] { CreateClonedPadding(1, 2, 3, 4), CreatePadding(1, 2, 3, 5), false };
            yield return new object[] { CreateClonedPadding(1, 2, 3, 4), CreateClonedPadding(1, 2, 3, 5), false };

            yield return new object[] { CreatePadding(1, 2, 3, 4), new object(), false };
            yield return new object[] { CreateClonedPadding(1, 2, 3, 4), new object(), false };
            yield return new object[] { CreatePadding(1, 2, 3, 4), null, false };
            yield return new object[] { CreateClonedPadding(1, 2, 3, 4), null, false };
        }

        [WinFormsTheory]
        [MemberData(nameof(Equals_TestData))]
        public void DockPaddingEdges_Equals_Invoke_ReturnsExpected(ScrollableControl.DockPaddingEdges padding, object other, bool expected)
        {
            if (other is ScrollableControl.DockPaddingEdges)
            {
                Assert.Equal(expected, padding.GetHashCode().Equals(other.GetHashCode()));
            }
            Assert.Equal(expected, padding.Equals(other));
        }

        [WinFormsFact]
        public void DockPaddingEdges_GetHashCode_InvokeWithOwner_ReturnsExpected()
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ScrollableControl.DockPaddingEdges padding = owner.DockPadding;
            Assert.NotEqual(0, padding.GetHashCode());
            Assert.Equal(padding.GetHashCode(), padding.GetHashCode());
        }

        [WinFormsFact]
        public void DockPaddingEdges_GetHashCode_InvokeWithoutOwner_ReturnsExpected()
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ICloneable original = owner.DockPadding;
            ScrollableControl.DockPaddingEdges padding = (ScrollableControl.DockPaddingEdges)original.Clone();
            Assert.NotEqual(0, padding.GetHashCode());
            Assert.Equal(padding.GetHashCode(), padding.GetHashCode());
        }

        [WinFormsFact]
        public void DockPaddingEdges_Clone_InvokeWithOwner_ReturnsExpected()
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ICloneable original = owner.DockPadding;
            ScrollableControl.DockPaddingEdges padding = (ScrollableControl.DockPaddingEdges)original.Clone();
            Assert.Equal(0, padding.All);
            Assert.Equal(1, padding.Left);
            Assert.Equal(2, padding.Top);
            Assert.Equal(3, padding.Right);
            Assert.Equal(4, padding.Bottom);
        }

        [WinFormsFact]
        public void DockPaddingEdges_Clone_InvokeWithoutOwner_ReturnsExpected()
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ICloneable original1 = owner.DockPadding;
            ICloneable original2 = (ICloneable)original1.Clone();
            ScrollableControl.DockPaddingEdges padding = (ScrollableControl.DockPaddingEdges)original2.Clone();
            Assert.Equal(0, padding.All);
            Assert.Equal(1, padding.Left);
            Assert.Equal(2, padding.Top);
            Assert.Equal(3, padding.Right);
            Assert.Equal(4, padding.Bottom);
        }

        [WinFormsFact]
        public void DockPaddingEdges_ToString_InvokeWithOwner_ReturnsExpected()
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ScrollableControl.DockPaddingEdges padding = owner.DockPadding;
            Assert.Equal("{Left=1,Top=2,Right=3,Bottom=4}", padding.ToString());
        }

        [WinFormsFact]
        public void DockPaddingEdges_ToString_InvokeWithoutOwner_ReturnsExpected()
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ICloneable original = owner.DockPadding;
            ScrollableControl.DockPaddingEdges padding = (ScrollableControl.DockPaddingEdges)original.Clone();
            Assert.Equal("{Left=1,Top=2,Right=3,Bottom=4}", padding.ToString());
        }

        [WinFormsFact]
        public void DockPaddingEdges_AllPropertyDescriptor_ResetValue_SetsToZero()
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ScrollableControl.DockPaddingEdges padding = owner.DockPadding;
            PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(padding);
            PropertyDescriptor property = properties[nameof(ScrollableControl.DockPaddingEdges.All)];
            Assert.True(property.CanResetValue(padding));
            Assert.True(property.ShouldSerializeValue(padding));
            property.ResetValue(padding);

            Assert.Equal(0, padding.All);
            Assert.Equal(0, padding.Left);
            Assert.Equal(0, padding.Top);
            Assert.Equal(0, padding.Right);
            Assert.Equal(0, padding.Bottom);
        }

        [WinFormsFact]
        public void DockPaddingEdges_LeftPropertyDescriptor_ResetValue_SetsToZero()
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ScrollableControl.DockPaddingEdges padding = owner.DockPadding;
            PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(padding);
            PropertyDescriptor property = properties[nameof(ScrollableControl.DockPaddingEdges.Left)];
            Assert.True(property.CanResetValue(padding));
            Assert.True(property.ShouldSerializeValue(padding));
            property.ResetValue(padding);

            Assert.Equal(0, padding.All);
            Assert.Equal(0, padding.Left);
            Assert.Equal(2, padding.Top);
            Assert.Equal(3, padding.Right);
            Assert.Equal(4, padding.Bottom);
        }

        [WinFormsFact]
        public void DockPaddingEdges_TopPropertyDescriptor_ResetValue_SetsToZero()
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ScrollableControl.DockPaddingEdges padding = owner.DockPadding;
            PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(padding);
            PropertyDescriptor property = properties[nameof(ScrollableControl.DockPaddingEdges.Top)];
            Assert.True(property.CanResetValue(padding));
            Assert.True(property.ShouldSerializeValue(padding));
            property.ResetValue(padding);

            Assert.Equal(0, padding.All);
            Assert.Equal(1, padding.Left);
            Assert.Equal(0, padding.Top);
            Assert.Equal(3, padding.Right);
            Assert.Equal(4, padding.Bottom);
        }

        [WinFormsFact]
        public void DockPaddingEdges_RightPropertyDescriptor_ResetValue_SetsToZero()
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ScrollableControl.DockPaddingEdges padding = owner.DockPadding;
            PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(padding);
            PropertyDescriptor property = properties[nameof(ScrollableControl.DockPaddingEdges.Right)];
            Assert.True(property.CanResetValue(padding));
            Assert.True(property.ShouldSerializeValue(padding));
            property.ResetValue(padding);

            Assert.Equal(0, padding.All);
            Assert.Equal(1, padding.Left);
            Assert.Equal(2, padding.Top);
            Assert.Equal(0, padding.Right);
            Assert.Equal(4, padding.Bottom);
        }

        [WinFormsFact]
        public void DockPaddingEdges_BottomPropertyDescriptor_ResetValue_SetsToZero()
        {
            using var owner = new ScrollableControl
            {
                Padding = new Padding(1, 2, 3, 4)
            };
            ScrollableControl.DockPaddingEdges padding = owner.DockPadding;
            PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(padding);
            PropertyDescriptor property = properties[nameof(ScrollableControl.DockPaddingEdges.Bottom)];
            Assert.True(property.CanResetValue(padding));
            Assert.True(property.ShouldSerializeValue(padding));
            property.ResetValue(padding);

            Assert.Equal(0, padding.All);
            Assert.Equal(1, padding.Left);
            Assert.Equal(2, padding.Top);
            Assert.Equal(3, padding.Right);
            Assert.Equal(0, padding.Bottom);
        }

        [WinFormsFact]
        public void DockPaddingEdges_GetTypeConverter_ReturnsDockPaddingEdgesConverter()
        {
            Assert.IsType<ScrollableControl.DockPaddingEdgesConverter>(TypeDescriptor.GetConverter(typeof(ScrollableControl.DockPaddingEdges)));
        }
    }
}
