// 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 System.Linq;
using System.Runtime.InteropServices;
using System.Threading;
using Moq;
using WinForms.Common.Tests;
using Xunit;
using static Interop;

namespace System.Windows.Forms.Tests
{
    using Point = System.Drawing.Point;
    using Size = System.Drawing.Size;

    public class StatusStripTests : IClassFixture<ThreadExceptionFixture>
    {
        [WinFormsFact]
        public void StatusStrip_Ctor_Default()
        {
            using var control = new SubStatusStrip();
            Assert.Null(control.AccessibleDefaultActionDescription);
            Assert.Null(control.AccessibleDescription);
            Assert.Null(control.AccessibleName);
            Assert.Equal(AccessibleRole.Default, control.AccessibleRole);
            Assert.False(control.AllowDrop);
            Assert.False(control.AllowItemReorder);
            Assert.True(control.AllowMerge);
            Assert.Equal(AnchorStyles.Top | AnchorStyles.Left, control.Anchor);
            Assert.False(control.AutoScroll);
            Assert.Equal(Size.Empty, control.AutoScrollMargin);
            Assert.Equal(Size.Empty, control.AutoScrollMinSize);
            Assert.Equal(Point.Empty, control.AutoScrollPosition);
            Assert.True(control.AutoSize);
            Assert.Equal(Control.DefaultBackColor, control.BackColor);
            Assert.Null(control.BackgroundImage);
            Assert.Equal(ImageLayout.Tile, control.BackgroundImageLayout);
            Assert.Null(control.BindingContext);
            Assert.Equal(22, control.Bottom);
            Assert.Equal(new Rectangle(0, 0, 200, 22), control.Bounds);
            Assert.True(control.CanEnableIme);
            Assert.False(control.CanFocus);
            Assert.False(control.CanOverflow);
            Assert.True(control.CanRaiseEvents);
            Assert.False(control.CanSelect);
            Assert.False(control.Capture);
            Assert.False(control.CausesValidation);
            Assert.Equal(new Rectangle(0, 0, 200, 22), control.ClientRectangle);
            Assert.Equal(new Size(200, 22), control.ClientSize);
            Assert.Null(control.Container);
            Assert.False(control.ContainsFocus);
            Assert.Null(control.ContextMenuStrip);
            Assert.Empty(control.Controls);
            Assert.Same(control.Controls, control.Controls);
            Assert.False(control.Created);
            Assert.Same(Cursors.Default, control.Cursor);
            Assert.Same(Cursors.Default, control.DefaultCursor);
            Assert.Equal(DockStyle.Bottom, control.DefaultDock);
            Assert.Equal(ToolStripDropDownDirection.AboveRight, control.DefaultDropDownDirection);
            Assert.Equal(ImeMode.Inherit, control.DefaultImeMode);
            Assert.Equal(new Padding(2, 2, 2, 2), control.DefaultGripMargin);
            Assert.Equal(Padding.Empty, control.DefaultMargin);
            Assert.Equal(Size.Empty, control.DefaultMaximumSize);
            Assert.Equal(Size.Empty, control.DefaultMinimumSize);
            Assert.Equal(new Padding(1, 0, 14, 0), control.DefaultPadding);
            Assert.Equal(new Size(200, 22), control.DefaultSize);
            Assert.False(control.DefaultShowItemToolTips);
            Assert.False(control.DesignMode);
            Assert.Empty(control.DisplayedItems);
            Assert.Same(control.DisplayedItems, control.DisplayedItems);
            Assert.Equal(new Rectangle(1, 0, 185, 22), control.DisplayRectangle);
            Assert.Equal(DockStyle.Bottom, control.Dock);
            Assert.NotNull(control.DockPadding);
            Assert.Same(control.DockPadding, control.DockPadding);
            Assert.Equal(0, control.DockPadding.Top);
            Assert.Equal(0, control.DockPadding.Bottom);
            Assert.Equal(1, control.DockPadding.Left);
            Assert.Equal(14, control.DockPadding.Right);
            Assert.True(control.DoubleBuffered);
            Assert.True(control.Enabled);
            Assert.NotNull(control.Events);
            Assert.Same(control.Events, control.Events);
            Assert.False(control.Focused);
            Assert.Equal(Control.DefaultFont, control.Font);
            Assert.Equal(control.Font.Height, control.FontHeight);
            Assert.Equal(Control.DefaultForeColor, control.ForeColor);
            Assert.Equal(ToolStripGripStyle.Hidden, control.GripStyle);
            Assert.Equal(ToolStripGripDisplayStyle.Horizontal, control.GripDisplayStyle);
            Assert.Equal(new Padding(2, 2, 2, 2), control.GripMargin);
            Assert.Equal(Rectangle.Empty, control.GripRectangle);
            Assert.False(control.HasChildren);
            Assert.Equal(22, control.Height);
            Assert.NotNull(control.HorizontalScroll);
            Assert.Same(control.HorizontalScroll, control.HorizontalScroll);
            Assert.False(control.HScroll);
            Assert.Null(control.ImageList);
            Assert.Equal(new Size(16, 16), control.ImageScalingSize);
            Assert.Equal(ImeMode.NoControl, control.ImeMode);
            Assert.Equal(ImeMode.NoControl, control.ImeModeBase);
            Assert.False(control.IsAccessible);
            Assert.False(control.IsCurrentlyDragging);
            Assert.False(control.IsDropDown);
            Assert.False(control.IsMirrored);
            Assert.Empty(control.Items);
            Assert.Same(control.Items, control.Items);
            Assert.NotNull(control.LayoutEngine);
            Assert.Same(control.LayoutEngine, control.LayoutEngine);
            Assert.IsType<TableLayoutSettings>(control.LayoutSettings);
            Assert.Equal(ToolStripLayoutStyle.Table, control.LayoutStyle);
            Assert.Equal(0, control.Left);
            Assert.Equal(Point.Empty, control.Location);
            Assert.Equal(Padding.Empty, control.Margin);
            Assert.Equal(Size.Empty, control.MaximumSize);
            Assert.Equal(new Size(185, 22), control.MaxItemSize);
            Assert.Equal(Size.Empty, control.MinimumSize);
            Assert.Equal(Orientation.Horizontal, control.Orientation);
            Assert.NotNull(control.OverflowButton);
            Assert.Same(control.OverflowButton, control.OverflowButton);
            Assert.Same(control, control.OverflowButton.GetCurrentParent());
            Assert.Equal(new Padding(1, 0, 14, 0), control.Padding);
            Assert.Null(control.Parent);
            Assert.True(control.PreferredSize.Width > 0);
            Assert.True(control.PreferredSize.Height > 0);
            Assert.Equal("Microsoft\u00AE .NET", control.ProductName);
            Assert.False(control.RecreatingHandle);
            Assert.Null(control.Region);
            Assert.NotNull(control.Renderer);
            Assert.Same(control.Renderer, control.Renderer);
            Assert.IsType<ToolStripSystemRenderer>(control.Renderer);
            Assert.Equal(ToolStripRenderMode.System, control.RenderMode);
            Assert.True(control.ResizeRedraw);
            Assert.Equal(200, control.Right);
            Assert.Equal(RightToLeft.No, control.RightToLeft);
            Assert.True(control.ShowFocusCues);
            Assert.False(control.ShowItemToolTips);
            Assert.True(control.ShowKeyboardCues);
            Assert.Null(control.Site);
            Assert.Equal(new Size(200, 22), control.Size);
            Assert.True(control.SizingGrip);
            Assert.Equal(new Rectangle(188, 0, 12, 22), control.SizeGripBounds);
            Assert.True(control.Stretch);
            Assert.Equal(0, control.TabIndex);
            Assert.False(control.TabStop);
            Assert.Empty(control.Text);
            Assert.Equal(ToolStripTextDirection.Horizontal, control.TextDirection);
            Assert.Equal(0, control.Top);
            Assert.Null(control.TopLevelControl);
            Assert.False(control.UseWaitCursor);
            Assert.NotNull(control.VerticalScroll);
            Assert.Same(control.VerticalScroll, control.VerticalScroll);
            Assert.True(control.Visible);
            Assert.False(control.VScroll);
            Assert.Equal(200, control.Width);

            Assert.False(control.IsHandleCreated);
        }

        [WinFormsFact]
        public void StatusStrip_CreateParams_GetDefault_ReturnsExpected()
        {
            using var control = new SubStatusStrip();
            CreateParams createParams = control.CreateParams;
            Assert.Null(createParams.Caption);
            Assert.Null(createParams.ClassName);
            Assert.Equal(0x8, createParams.ClassStyle);
            Assert.Equal(0x10000, createParams.ExStyle);
            Assert.Equal(22, createParams.Height);
            Assert.Equal(IntPtr.Zero, createParams.Parent);
            Assert.Null(createParams.Param);
            Assert.Equal(0x56000000, createParams.Style);
            Assert.Equal(200, createParams.Width);
            Assert.Equal(0, createParams.X);
            Assert.Equal(0, createParams.Y);
            Assert.Same(createParams, control.CreateParams);
            Assert.False(control.IsHandleCreated);
        }

        [WinFormsTheory]
        [CommonMemberData(nameof(CommonTestHelper.GetBoolTheoryData))]
        public void StatusStrip_CanOverflow_Set_GetReturnsExpected(bool value)
        {
            using var control = new StatusStrip();
            int layoutCallCount = 0;
            control.Layout += (sender, e) => layoutCallCount++;

            control.CanOverflow = value;
            Assert.Equal(value, control.CanOverflow);
            Assert.Equal(0, layoutCallCount);
            Assert.False(control.IsHandleCreated);

            // Set same.
            control.CanOverflow = value;
            Assert.Equal(value, control.CanOverflow);
            Assert.Equal(0, layoutCallCount);
            Assert.False(control.IsHandleCreated);

            // Set different.
            control.CanOverflow = !value;
            Assert.Equal(!value, control.CanOverflow);
            Assert.Equal(0, layoutCallCount);
            Assert.False(control.IsHandleCreated);
        }

        public static IEnumerable<object[]> DefaultPadding_Get_TestData()
        {
            yield return new object[] { ToolStripLayoutStyle.Flow, RightToLeft.Yes, new Padding(14, 0, 1, 0) };
            yield return new object[] { ToolStripLayoutStyle.Flow, RightToLeft.No, new Padding(1, 0, 14, 0) };
            yield return new object[] { ToolStripLayoutStyle.Flow, RightToLeft.Inherit, new Padding(1, 0, 14, 0) };

            yield return new object[] { ToolStripLayoutStyle.HorizontalStackWithOverflow, RightToLeft.Yes, new Padding(14, 0, 1, 0) };
            yield return new object[] { ToolStripLayoutStyle.HorizontalStackWithOverflow, RightToLeft.No, new Padding(1, 0, 14, 0) };
            yield return new object[] { ToolStripLayoutStyle.HorizontalStackWithOverflow, RightToLeft.Inherit, new Padding(1, 0, 14, 0) };

            yield return new object[] { ToolStripLayoutStyle.StackWithOverflow, RightToLeft.Yes, new Padding(14, 0, 1, 0) };
            yield return new object[] { ToolStripLayoutStyle.StackWithOverflow, RightToLeft.No, new Padding(1, 0, 14, 0) };
            yield return new object[] { ToolStripLayoutStyle.StackWithOverflow, RightToLeft.Inherit, new Padding(1, 0, 14, 0) };

            yield return new object[] { ToolStripLayoutStyle.Table, RightToLeft.Yes, new Padding(14, 0, 1, 0) };
            yield return new object[] { ToolStripLayoutStyle.Table, RightToLeft.No, new Padding(1, 0, 14, 0) };
            yield return new object[] { ToolStripLayoutStyle.Table, RightToLeft.Inherit, new Padding(1, 0, 14, 0) };

            yield return new object[] { ToolStripLayoutStyle.VerticalStackWithOverflow, RightToLeft.Yes, new Padding(1, 3, 1, 22) };
            yield return new object[] { ToolStripLayoutStyle.VerticalStackWithOverflow, RightToLeft.No, new Padding(1, 3, 1, 22) };
            yield return new object[] { ToolStripLayoutStyle.VerticalStackWithOverflow, RightToLeft.Inherit, new Padding(1, 3, 1, 22) };
        }

        [WinFormsTheory]
        [MemberData(nameof(DefaultPadding_Get_TestData))]
        public void StatusStrip_DefaultPadding_Get_ReturnsExpected(ToolStripLayoutStyle layoutStyle, RightToLeft rightToLeft, Padding expected)
        {
            using var control = new SubStatusStrip
            {
                LayoutStyle = layoutStyle,
                RightToLeft = rightToLeft
            };
            Assert.Equal(expected, control.DefaultPadding);
        }

        public static IEnumerable<object[]> Dock_Set_TestData()
        {
            yield return new object[] { ToolStripLayoutStyle.Flow, DockStyle.Bottom, 0, Orientation.Horizontal, 0 };
            yield return new object[] { ToolStripLayoutStyle.HorizontalStackWithOverflow, DockStyle.Bottom, 0, Orientation.Horizontal, 0 };
            yield return new object[] { ToolStripLayoutStyle.StackWithOverflow, DockStyle.Bottom, 0, Orientation.Horizontal, 0 };
            yield return new object[] { ToolStripLayoutStyle.Table, DockStyle.Bottom, 0, Orientation.Horizontal, 0 };
            yield return new object[] { ToolStripLayoutStyle.VerticalStackWithOverflow, DockStyle.Bottom, 0, Orientation.Vertical, 0 };

            yield return new object[] { ToolStripLayoutStyle.Flow, DockStyle.Fill, 1, Orientation.Horizontal, 1 };
            yield return new object[] { ToolStripLayoutStyle.HorizontalStackWithOverflow, DockStyle.Fill, 1, Orientation.Horizontal, 0 };
            yield return new object[] { ToolStripLayoutStyle.StackWithOverflow, DockStyle.Fill, 1, Orientation.Horizontal, 1 };
            yield return new object[] { ToolStripLayoutStyle.Table, DockStyle.Fill, 1, Orientation.Horizontal, 1 };
            yield return new object[] { ToolStripLayoutStyle.VerticalStackWithOverflow, DockStyle.Fill, 1, Orientation.Vertical, 0 };

            yield return new object[] { ToolStripLayoutStyle.Flow, DockStyle.Left, 1, Orientation.Vertical, 1 };
            yield return new object[] { ToolStripLayoutStyle.HorizontalStackWithOverflow, DockStyle.Left, 1, Orientation.Horizontal, 0 };
            yield return new object[] { ToolStripLayoutStyle.StackWithOverflow, DockStyle.Left, 1, Orientation.Vertical, 1 };
            yield return new object[] { ToolStripLayoutStyle.Table, DockStyle.Left, 1, Orientation.Vertical, 1 };
            yield return new object[] { ToolStripLayoutStyle.VerticalStackWithOverflow, DockStyle.Left, 1, Orientation.Vertical, 0 };

            yield return new object[] { ToolStripLayoutStyle.Flow, DockStyle.None, 1, Orientation.Horizontal, 1 };
            yield return new object[] { ToolStripLayoutStyle.HorizontalStackWithOverflow, DockStyle.None, 1, Orientation.Horizontal, 0 };
            yield return new object[] { ToolStripLayoutStyle.StackWithOverflow, DockStyle.None, 1, Orientation.Horizontal, 1 };
            yield return new object[] { ToolStripLayoutStyle.Table, DockStyle.None, 1, Orientation.Horizontal, 1 };
            yield return new object[] { ToolStripLayoutStyle.VerticalStackWithOverflow, DockStyle.None, 1, Orientation.Vertical, 0 };

            yield return new object[] { ToolStripLayoutStyle.Flow, DockStyle.Right, 1, Orientation.Vertical, 1 };
            yield return new object[] { ToolStripLayoutStyle.HorizontalStackWithOverflow, DockStyle.Right, 1, Orientation.Horizontal, 0 };
            yield return new object[] { ToolStripLayoutStyle.StackWithOverflow, DockStyle.Right, 1, Orientation.Vertical, 1 };
            yield return new object[] { ToolStripLayoutStyle.Table, DockStyle.Right, 1, Orientation.Vertical, 1 };
            yield return new object[] { ToolStripLayoutStyle.VerticalStackWithOverflow, DockStyle.Right, 1, Orientation.Vertical, 0 };

            yield return new object[] { ToolStripLayoutStyle.Flow, DockStyle.Top, 1, Orientation.Horizontal, 1 };
            yield return new object[] { ToolStripLayoutStyle.HorizontalStackWithOverflow, DockStyle.Top, 1, Orientation.Horizontal, 0 };
            yield return new object[] { ToolStripLayoutStyle.StackWithOverflow, DockStyle.Top, 1, Orientation.Horizontal, 1 };
            yield return new object[] { ToolStripLayoutStyle.Table, DockStyle.Top, 1, Orientation.Horizontal, 1 };
            yield return new object[] { ToolStripLayoutStyle.VerticalStackWithOverflow, DockStyle.Top, 1, Orientation.Vertical, 0 };
        }

        [WinFormsTheory]
        [MemberData(nameof(Dock_Set_TestData))]
        public void StatusStrip_Dock_Set_GetReturnsExpected(ToolStripLayoutStyle layoutStyle, DockStyle value, int expectedLayoutCallCount, Orientation expectedOrientation, int expectedLayoutStyleChangedCallCount)
        {
            using var control = new StatusStrip
            {
                LayoutStyle = layoutStyle
            };
            int layoutCallCount = 0;
            control.Layout += (sender, e) =>
            {
                if (e.AffectedProperty == "Dock")
                {
                    Assert.Same(control, sender);
                    Assert.Same(control, e.AffectedControl);
                    layoutCallCount++;
                }
            };
            int layoutStyleChangedCallCount = 0;
            control.LayoutStyleChanged += (sender, e) =>
            {
                Assert.Same(control, sender);
                Assert.Same(EventArgs.Empty, e);
                layoutStyleChangedCallCount++;
            };

            control.Dock = value;
            Assert.Equal(value, control.Dock);
            Assert.Equal(AnchorStyles.Top | AnchorStyles.Left, control.Anchor);
            Assert.Equal(expectedLayoutCallCount, layoutCallCount);
            Assert.Equal(expectedOrientation, control.Orientation);
            Assert.Equal(expectedLayoutStyleChangedCallCount, layoutStyleChangedCallCount);
            Assert.False(control.IsHandleCreated);

            // Set same.
            control.Dock = value;
            Assert.Equal(value, control.Dock);
            Assert.Equal(AnchorStyles.Top | AnchorStyles.Left, control.Anchor);
            Assert.Equal(expectedLayoutCallCount, layoutCallCount);
            Assert.Equal(expectedOrientation, control.Orientation);
            Assert.Equal(expectedLayoutStyleChangedCallCount, layoutStyleChangedCallCount);
            Assert.False(control.IsHandleCreated);
        }

        [WinFormsTheory]
        [InlineData(ToolStripGripStyle.Hidden, 0)]
        [InlineData(ToolStripGripStyle.Visible, 1)]
        public void StatusStrip_GripStyle_Set_GetReturnsExpected(ToolStripGripStyle value, int expectedLayoutCallCount)
        {
            using var control = new StatusStrip();
            int layoutCallCount = 0;
            control.Layout += (sender, e) =>
            {
                Assert.Same(control, sender);
                Assert.Same(control, e.AffectedControl);
                Assert.Equal("GripStyle", e.AffectedProperty);
                layoutCallCount++;
            };

            control.GripStyle = value;
            Assert.Equal(value, control.GripStyle);
            Assert.Equal(expectedLayoutCallCount, layoutCallCount);
            Assert.False(control.IsHandleCreated);

            // Set same.
            control.GripStyle = value;
            Assert.Equal(value, control.GripStyle);
            Assert.Equal(expectedLayoutCallCount, layoutCallCount);
            Assert.False(control.IsHandleCreated);
        }

        public static IEnumerable<object[]> LayoutStyle_Set_TestData()
        {
            foreach (DockStyle dock in new DockStyle[] { DockStyle.None, DockStyle.Top, DockStyle.Bottom })
            {
                yield return new object[] { dock, ToolStripLayoutStyle.Flow, ToolStripLayoutStyle.Flow, Orientation.Horizontal, ToolStripGripDisplayStyle.Horizontal, 0 };
                yield return new object[] { dock, ToolStripLayoutStyle.HorizontalStackWithOverflow, ToolStripLayoutStyle.HorizontalStackWithOverflow, Orientation.Horizontal, ToolStripGripDisplayStyle.Vertical, 0 };
                yield return new object[] { dock, ToolStripLayoutStyle.StackWithOverflow, ToolStripLayoutStyle.HorizontalStackWithOverflow, Orientation.Horizontal, ToolStripGripDisplayStyle.Vertical, 1 };
                yield return new object[] { dock, ToolStripLayoutStyle.Table, ToolStripLayoutStyle.Table, Orientation.Horizontal, ToolStripGripDisplayStyle.Horizontal, 0 };
                yield return new object[] { dock, ToolStripLayoutStyle.VerticalStackWithOverflow, ToolStripLayoutStyle.VerticalStackWithOverflow, Orientation.Vertical, ToolStripGripDisplayStyle.Horizontal, 1 };
            }

            foreach (DockStyle dock in new DockStyle[] { DockStyle.Right, DockStyle.Left })
            {
                yield return new object[] { dock, ToolStripLayoutStyle.Flow, ToolStripLayoutStyle.Flow, Orientation.Horizontal, ToolStripGripDisplayStyle.Horizontal, 1 };
                yield return new object[] { dock, ToolStripLayoutStyle.HorizontalStackWithOverflow, ToolStripLayoutStyle.HorizontalStackWithOverflow, Orientation.Horizontal, ToolStripGripDisplayStyle.Vertical, 1 };
                yield return new object[] { dock, ToolStripLayoutStyle.StackWithOverflow, ToolStripLayoutStyle.VerticalStackWithOverflow, Orientation.Vertical, ToolStripGripDisplayStyle.Horizontal, 1 };
                yield return new object[] { dock, ToolStripLayoutStyle.Table, ToolStripLayoutStyle.Table, Orientation.Vertical, ToolStripGripDisplayStyle.Horizontal, 0 };
                yield return new object[] { dock, ToolStripLayoutStyle.VerticalStackWithOverflow, ToolStripLayoutStyle.VerticalStackWithOverflow, Orientation.Vertical, ToolStripGripDisplayStyle.Horizontal, 0 };
            }
        }

        [WinFormsTheory]
        [MemberData(nameof(LayoutStyle_Set_TestData))]
        public void StatusStrip_LayoutStyle_Set_GetReturnsExpected(DockStyle dock, ToolStripLayoutStyle value, ToolStripLayoutStyle expected, Orientation expectedOrientation, ToolStripGripDisplayStyle expectedGripDisplayStyle, int expectedLayoutCallCount)
        {
            using var control = new StatusStrip
            {
                Dock = dock
            };
            int layoutCallCount = 0;
            control.Layout += (sender, e) => layoutCallCount++;

            control.LayoutStyle = value;
            Assert.Equal(expected, control.LayoutStyle);
            Assert.Equal(expectedOrientation, control.Orientation);
            Assert.Equal(expectedGripDisplayStyle, control.GripDisplayStyle);
            Assert.Equal(expectedLayoutCallCount, layoutCallCount);
            Assert.False(control.IsHandleCreated);

            // Set same.
            control.LayoutStyle = value;
            Assert.Equal(expected, control.LayoutStyle);
            Assert.Equal(expectedOrientation, control.Orientation);
            Assert.Equal(expectedGripDisplayStyle, control.GripDisplayStyle);
            Assert.Equal(expectedLayoutCallCount, layoutCallCount);
            Assert.False(control.IsHandleCreated);
        }

        public static IEnumerable<object[]> Padding_Set_TestData()
        {
            yield return new object[] { new Padding(), new Padding(), 1, 1 };
            yield return new object[] { new Padding(1, 0, 14, 0), new Padding(1, 0, 14, 0), 0, 0 };
            yield return new object[] { new Padding(1, 2, 3, 4), new Padding(1, 2, 3, 4), 1, 1 };
            yield return new object[] { new Padding(1), new Padding(1), 1, 1 };
            yield return new object[] { new Padding(-1, -2, -3, -4), Padding.Empty, 1, 2 };
        }

        [WinFormsTheory]
        [MemberData(nameof(Padding_Set_TestData))]
        public void StatusStrip_Padding_Set_GetReturnsExpected(Padding value, Padding expected, int expectedLayoutCallCount1, int expectedLayoutCallCount2)
        {
            using var control = new StatusStrip();
            int layoutCallCount = 0;
            control.Layout += (sender, e) =>
            {
                Assert.Same(control, sender);
                Assert.Same(control, e.AffectedControl);
                Assert.Equal("Padding", e.AffectedProperty);
                layoutCallCount++;
            };

            control.Padding = value;
            Assert.Equal(expected, control.Padding);
            Assert.Equal(expectedLayoutCallCount1, layoutCallCount);
            Assert.False(control.IsHandleCreated);

            // Set same.
            control.Padding = value;
            Assert.Equal(expected, control.Padding);
            Assert.Equal(expectedLayoutCallCount2, layoutCallCount);
            Assert.False(control.IsHandleCreated);
        }

        [WinFormsFact]
        public void StatusStrip_Padding_SetWithHandler_CallsPaddingChanged()
        {
            using var control = new StatusStrip();
            int callCount = 0;
            EventHandler handler = (sender, e) =>
            {
                Assert.Equal(control, sender);
                Assert.Equal(EventArgs.Empty, e);
                callCount++;
            };
            control.PaddingChanged += handler;

            // Set different.
            var padding1 = new Padding(1);
            control.Padding = padding1;
            Assert.Equal(padding1, control.Padding);
            Assert.Equal(1, callCount);

            // Set same.
            control.Padding = padding1;
            Assert.Equal(padding1, control.Padding);
            Assert.Equal(1, callCount);

            // Set different.
            var padding2 = new Padding(2);
            control.Padding = padding2;
            Assert.Equal(padding2, control.Padding);
            Assert.Equal(2, callCount);

            // Remove handler.
            control.PaddingChanged -= handler;
            control.Padding = padding1;
            Assert.Equal(padding1, control.Padding);
            Assert.Equal(2, callCount);
        }

        [WinFormsTheory]
        [InlineData(ToolStripRenderMode.Professional, typeof(ToolStripProfessionalRenderer), 3)]
        [InlineData(ToolStripRenderMode.ManagerRenderMode, typeof(ToolStripProfessionalRenderer), 2)]
        public void StatusStrip_RenderMode_Set_ReturnsExpected(ToolStripRenderMode value, Type expectedRendererType, int expectedSameRendererChangedCallCount)
        {
            using var control = new StatusStrip();
            int rendererChangedCallCount = 0;
            control.RendererChanged += (sender, e) =>
            {
                Assert.Same(control, sender);
                Assert.Same(EventArgs.Empty, e);
                rendererChangedCallCount++;
            };

            // Set same.
            control.RenderMode = ToolStripRenderMode.System;
            Assert.Equal(ToolStripRenderMode.System, control.RenderMode);
            Assert.NotNull(control.Renderer);
            Assert.Same(control.Renderer, control.Renderer);
            Assert.IsType<ToolStripSystemRenderer>(control.Renderer);
            Assert.Equal(1, rendererChangedCallCount);

            // Set different.
            control.RenderMode = value;
            Assert.Equal(value, control.RenderMode);
            Assert.IsType(expectedRendererType, control.Renderer);
            Assert.Equal(2, rendererChangedCallCount);

            // Set same.
            control.RenderMode = value;
            Assert.Equal(value, control.RenderMode);
            Assert.IsType(expectedRendererType, control.Renderer);
            Assert.Equal(expectedSameRendererChangedCallCount, rendererChangedCallCount);

            // Set System.
            control.RenderMode = ToolStripRenderMode.System;
            Assert.Equal(ToolStripRenderMode.System, control.RenderMode);
            Assert.NotNull(control.Renderer);
            Assert.Same(control.Renderer, control.Renderer);
            Assert.IsType<ToolStripSystemRenderer>(control.Renderer);
            Assert.Equal(expectedSameRendererChangedCallCount + 1, rendererChangedCallCount);
        }

        [WinFormsTheory]
        [InlineData(ToolStripRenderMode.Professional, typeof(ToolStripProfessionalRenderer), 2)]
        [InlineData(ToolStripRenderMode.ManagerRenderMode, typeof(ToolStripProfessionalRenderer), 1)]
        public void StatusStrip_RenderMode_SetWithCustomRenderer_ReturnsExpected(ToolStripRenderMode value, Type expectedRendererType, int expectedSameRendererChangedCallCount)
        {
            using var control = new StatusStrip
            {
                Renderer = new SubToolStripRenderer()
            };
            int rendererChangedCallCount = 0;
            control.RendererChanged += (sender, e) =>
            {
                Assert.Same(control, sender);
                Assert.Same(EventArgs.Empty, e);
                rendererChangedCallCount++;
            };

            control.RenderMode = value;
            Assert.Equal(value, control.RenderMode);
            Assert.IsType(expectedRendererType, control.Renderer);
            Assert.Equal(1, rendererChangedCallCount);

            // Set same.
            control.RenderMode = value;
            Assert.Equal(value, control.RenderMode);
            Assert.IsType(expectedRendererType, control.Renderer);
            Assert.Equal(expectedSameRendererChangedCallCount, rendererChangedCallCount);

            // Set System.
            control.RenderMode = ToolStripRenderMode.System;
            Assert.Equal(ToolStripRenderMode.System, control.RenderMode);
            Assert.NotNull(control.Renderer);
            Assert.Same(control.Renderer, control.Renderer);
            Assert.IsType<ToolStripSystemRenderer>(control.Renderer);
            Assert.Equal(expectedSameRendererChangedCallCount + 1, rendererChangedCallCount);
        }

        [WinFormsFact]
        public void StatusStrip_RenderMode_ResetValue_Success()
        {
            PropertyDescriptor property = TypeDescriptor.GetProperties(typeof(StatusStrip))[nameof(ToolStrip.RenderMode)];
            using var control = new StatusStrip();
            Assert.False(property.CanResetValue(control));

            control.RenderMode = ToolStripRenderMode.Professional;
            Assert.Equal(ToolStripRenderMode.Professional, control.RenderMode);
            Assert.True(property.CanResetValue(control));

            control.RenderMode = ToolStripRenderMode.System;
            Assert.Equal(ToolStripRenderMode.System, control.RenderMode);
            Assert.False(property.CanResetValue(control));

            control.Renderer = new SubToolStripRenderer();
            Assert.Equal(ToolStripRenderMode.Custom, control.RenderMode);
            Assert.False(property.CanResetValue(control));

            control.RenderMode = ToolStripRenderMode.ManagerRenderMode;
            Assert.Equal(ToolStripRenderMode.ManagerRenderMode, control.RenderMode);
            Assert.True(property.CanResetValue(control));

            property.ResetValue(control);
            Assert.Equal(ToolStripRenderMode.System, control.RenderMode);
            Assert.False(property.CanResetValue(control));
        }

        [WinFormsFact]
        public void StatusStrip_RenderMode_ShouldSerializeValue_Success()
        {
            PropertyDescriptor property = TypeDescriptor.GetProperties(typeof(StatusStrip))[nameof(ToolStrip.RenderMode)];
            using var control = new StatusStrip();
            Assert.False(property.ShouldSerializeValue(control));

            control.RenderMode = ToolStripRenderMode.Professional;
            Assert.Equal(ToolStripRenderMode.Professional, control.RenderMode);
            Assert.True(property.ShouldSerializeValue(control));

            control.RenderMode = ToolStripRenderMode.System;
            Assert.Equal(ToolStripRenderMode.System, control.RenderMode);
            Assert.False(property.ShouldSerializeValue(control));

            control.Renderer = new SubToolStripRenderer();
            Assert.Equal(ToolStripRenderMode.Custom, control.RenderMode);
            Assert.False(property.ShouldSerializeValue(control));

            control.RenderMode = ToolStripRenderMode.ManagerRenderMode;
            Assert.Equal(ToolStripRenderMode.ManagerRenderMode, control.RenderMode);
            Assert.True(property.ShouldSerializeValue(control));

            property.ResetValue(control);
            Assert.Equal(ToolStripRenderMode.System, control.RenderMode);
            Assert.False(property.ShouldSerializeValue(control));
        }

        [WinFormsTheory]
        [CommonMemberData(nameof(CommonTestHelper.GetEnumTypeTheoryDataInvalid), typeof(ToolStripRenderMode))]
        public void StatusStrip_RenderMode_SetInvalidValue_ThrowsInvalidEnumArgumentException(ToolStripRenderMode value)
        {
            using var control = new StatusStrip();
            Assert.Throws<InvalidEnumArgumentException>("value", () => control.RenderMode = value);
        }

        [WinFormsFact]
        public void StatusStrip_RenderMode_SetCustomThrowsInvalidEnumArgumentException()
        {
            using var control = new StatusStrip();
            Assert.Throws<NotSupportedException>(() => control.RenderMode = ToolStripRenderMode.Custom);
        }

        public static IEnumerable<object[]> SizeGripBounds_Get_TestData()
        {
            foreach (ToolStripLayoutStyle layoutStyle in Enum.GetValues(typeof(ToolStripLayoutStyle)))
            {
                yield return new object[] { true, layoutStyle, RightToLeft.Yes, new Rectangle(0, 0, 12, 22) };
                yield return new object[] { true, layoutStyle, RightToLeft.No, new Rectangle(188, 0, 12, 22) };
                yield return new object[] { true, layoutStyle, RightToLeft.Inherit, new Rectangle(188, 0, 12, 22) };
                yield return new object[] { false, layoutStyle, RightToLeft.Yes, Rectangle.Empty };
                yield return new object[] { false, layoutStyle, RightToLeft.No, Rectangle.Empty };
                yield return new object[] { false, layoutStyle, RightToLeft.Inherit, Rectangle.Empty };
            }
        }

        [WinFormsTheory]
        [MemberData(nameof(SizeGripBounds_Get_TestData))]
        public void StatusStrip_SizeGripBounds_Get_ReturnsExpected(bool sizingGrip, ToolStripLayoutStyle layoutStyle, RightToLeft rightToLeft, Rectangle expected)
        {
            using var control = new SubStatusStrip
            {
                SizingGrip = sizingGrip,
                LayoutStyle = layoutStyle,
                RightToLeft = rightToLeft
            };
            Assert.Equal(expected, control.SizeGripBounds);
        }

        public static IEnumerable<object[]> SizeGripBounds_GetLargeSize_TestData()
        {
            foreach (ToolStripLayoutStyle layoutStyle in Enum.GetValues(typeof(ToolStripLayoutStyle)))
            {
                yield return new object[] { true, layoutStyle, RightToLeft.Yes, new Rectangle(0, 10, 12, 22) };
                yield return new object[] { true, layoutStyle, RightToLeft.No, new Rectangle(198, 10, 12, 22) };
                yield return new object[] { true, layoutStyle, RightToLeft.Inherit, new Rectangle(198, 10, 12, 22) };
                yield return new object[] { false, layoutStyle, RightToLeft.Yes, Rectangle.Empty };
                yield return new object[] { false, layoutStyle, RightToLeft.No, Rectangle.Empty };
                yield return new object[] { false, layoutStyle, RightToLeft.Inherit, Rectangle.Empty };
            }
        }

        [WinFormsTheory]
        [MemberData(nameof(SizeGripBounds_GetLargeSize_TestData))]
        public void StatusStrip_SizeGripBounds_GetLargeSize_ReturnsExpected(bool sizingGrip, ToolStripLayoutStyle layoutStyle, RightToLeft rightToLeft, Rectangle expected)
        {
            using var control = new SubStatusStrip
            {
                SizingGrip = sizingGrip,
                LayoutStyle = layoutStyle,
                RightToLeft = rightToLeft,
                Size = new Size(210, 32)
            };
            Assert.Equal(expected, control.SizeGripBounds);
        }

        public static IEnumerable<object[]> SizeGripBounds_GetSmallSize_TestData()
        {
            foreach (ToolStripLayoutStyle layoutStyle in Enum.GetValues(typeof(ToolStripLayoutStyle)))
            {
                yield return new object[] { true, layoutStyle, RightToLeft.Yes, new Rectangle(0, 0, 12, 12) };
                yield return new object[] { true, layoutStyle, RightToLeft.No, new Rectangle(178, 0, 12, 12) };
                yield return new object[] { true, layoutStyle, RightToLeft.Inherit, new Rectangle(178, 0, 12, 12) };
                yield return new object[] { false, layoutStyle, RightToLeft.Yes, Rectangle.Empty };
                yield return new object[] { false, layoutStyle, RightToLeft.No, Rectangle.Empty };
                yield return new object[] { false, layoutStyle, RightToLeft.Inherit, Rectangle.Empty };
            }
        }

        [WinFormsTheory]
        [MemberData(nameof(SizeGripBounds_GetSmallSize_TestData))]
        public void StatusStrip_SizeGripBounds_GetSmallSize_ReturnsExpected(bool sizingGrip, ToolStripLayoutStyle layoutStyle, RightToLeft rightToLeft, Rectangle expected)
        {
            using var control = new SubStatusStrip
            {
                SizingGrip = sizingGrip,
                LayoutStyle = layoutStyle,
                RightToLeft = rightToLeft,
                Size = new Size(190, 12)
            };
            Assert.Equal(expected, control.SizeGripBounds);
        }

        [WinFormsTheory]
        [CommonMemberData(nameof(CommonTestHelper.GetBoolTheoryData))]
        public void StatusStrip_SizingGrip_Set_GetReturnsExpected(bool value)
        {
            using var control = new StatusStrip
            {
                SizingGrip = value
            };
            Assert.Equal(value, control.SizingGrip);
            Assert.Empty(control.Controls);
            Assert.False(control.IsHandleCreated);

            // Set same.
            control.SizingGrip = value;
            Assert.Equal(value, control.SizingGrip);
            Assert.Empty(control.Controls);
            Assert.False(control.IsHandleCreated);

            // Set different.
            control.SizingGrip = !value;
            Assert.Equal(!value, control.SizingGrip);
            Assert.Empty(control.Controls);
            Assert.False(control.IsHandleCreated);
        }

        public static IEnumerable<object[]> SizingGrip_SetRightToLeft_TestData()
        {
            yield return new object[] { RightToLeft.Yes, true, 1, 0 };
            yield return new object[] { RightToLeft.No, true, 0, 0 };
            yield return new object[] { RightToLeft.Inherit, true, 0, 0 };

            yield return new object[] { RightToLeft.Yes, false, 0, 1 };
            yield return new object[] { RightToLeft.No, false, 0, 0 };
            yield return new object[] { RightToLeft.Inherit, false, 0, 0 };
        }

        [WinFormsTheory]
        [MemberData(nameof(SizingGrip_SetRightToLeft_TestData))]
        public void StatusStrip_SizingGrip_SetRightToLeft_GetReturnsExpected(RightToLeft rightToLeft, bool value, int expectedChildrenCallCount1, int expectedChildrenCallCount2)
        {
            using var control = new StatusStrip
            {
                RightToLeft = rightToLeft,
                SizingGrip = value
            };
            Assert.Equal(value, control.SizingGrip);
            Assert.Equal(expectedChildrenCallCount1, control.Controls.Count);
            Assert.False(control.IsHandleCreated);

            // Set same.
            control.SizingGrip = value;
            Assert.Equal(value, control.SizingGrip);
            Assert.Equal(expectedChildrenCallCount1, control.Controls.Count);
            Assert.False(control.IsHandleCreated);

            // Set different.
            control.SizingGrip = !value;
            Assert.Equal(!value, control.SizingGrip);
            Assert.Equal(expectedChildrenCallCount2, control.Controls.Count);
            Assert.False(control.IsHandleCreated);
        }

        public static IEnumerable<object[]> StatusStrip_SizingGrip_SetRightToLeftNonReadOnlyControls_TestData()
        {
            foreach (RightToLeft rightToLeft in Enum.GetValues(typeof(RightToLeft)))
            {
                yield return new object[] { rightToLeft, true };
                yield return new object[] { rightToLeft, false };
            }
        }

        [WinFormsTheory]
        [MemberData(nameof(StatusStrip_SizingGrip_SetRightToLeftNonReadOnlyControls_TestData))]
        public void StatusStrip_SizingGrip_SetRightToLeftNonReadOnlyControls_GetReturnsExpected(RightToLeft rightToLeft, bool value)
        {
            using var control = new NonReadOnlyControlsStatusStrip
            {
                RightToLeft = rightToLeft,
                SizingGrip = value
            };
            Assert.Equal(value, control.SizingGrip);
            Assert.Empty(control.Controls);
            Assert.False(control.IsHandleCreated);

            // Set same.
            control.SizingGrip = value;
            Assert.Equal(value, control.SizingGrip);
            Assert.Empty(control.Controls);
            Assert.False(control.IsHandleCreated);

            // Set different.
            control.SizingGrip = !value;
            Assert.Equal(!value, control.SizingGrip);
            Assert.Empty(control.Controls);
            Assert.False(control.IsHandleCreated);
        }

        [WinFormsTheory]
        [InlineData(true, 0)]
        [InlineData(false, 1)]
        public void StatusStrip_SizingGrip_SetWithHandle_GetReturnsExpected(bool value, int expectedInvalidatedCallCount)
        {
            using var control = new StatusStrip();
            Assert.NotEqual(IntPtr.Zero, control.Handle);
            int invalidatedCallCount = 0;
            control.Invalidated += (sender, e) => invalidatedCallCount++;
            int styleChangedCallCount = 0;
            control.StyleChanged += (sender, e) => styleChangedCallCount++;
            int createdCallCount = 0;
            control.HandleCreated += (sender, e) => createdCallCount++;

            control.SizingGrip = value;
            Assert.Equal(value, control.SizingGrip);
            Assert.Empty(control.Controls);
            Assert.True(control.IsHandleCreated);
            Assert.Equal(expectedInvalidatedCallCount, invalidatedCallCount);
            Assert.Equal(0, styleChangedCallCount);
            Assert.Equal(0, createdCallCount);

            // Set same.
            control.SizingGrip = value;
            Assert.Equal(value, control.SizingGrip);
            Assert.Empty(control.Controls);
            Assert.True(control.IsHandleCreated);
            Assert.Equal(expectedInvalidatedCallCount, invalidatedCallCount);
            Assert.Equal(0, styleChangedCallCount);
            Assert.Equal(0, createdCallCount);

            // Set different.
            control.SizingGrip = !value;
            Assert.Equal(!value, control.SizingGrip);
            Assert.Empty(control.Controls);
            Assert.True(control.IsHandleCreated);
            Assert.Equal(expectedInvalidatedCallCount + 1, invalidatedCallCount);
            Assert.Equal(0, styleChangedCallCount);
            Assert.Equal(0, createdCallCount);
        }

        [WinFormsTheory]
        [CommonMemberData(nameof(CommonTestHelper.GetBoolTheoryData))]
        public void StatusStrip_ShowItemToolTips_Set_GetReturnsExpected(bool value)
        {
            using var control = new StatusStrip
            {
                ShowItemToolTips = value
            };
            Assert.Equal(value, control.ShowItemToolTips);
            Assert.False(control.IsHandleCreated);

            // Set same.
            control.ShowItemToolTips = value;
            Assert.Equal(value, control.ShowItemToolTips);
            Assert.False(control.IsHandleCreated);

            // Set different.
            control.ShowItemToolTips = !value;
            Assert.Equal(!value, control.ShowItemToolTips);
            Assert.Equal(!value, control.OverflowButton.DropDown.ShowItemToolTips);
            Assert.False(control.IsHandleCreated);
        }

        [WinFormsFact]
        public void StatusStrip_CreateAccessibilityInstance_Invoke_ReturnsExpected()
        {
            using var control = new SubStatusStrip();
            Control.ControlAccessibleObject instance = Assert.IsAssignableFrom<Control.ControlAccessibleObject>(control.CreateAccessibilityInstance());
            Assert.NotNull(instance);
            Assert.NotSame(control.CreateAccessibilityInstance(), instance);
            Assert.NotSame(control.AccessibilityObject, instance);
            Assert.Same(control, instance.Owner);
            Assert.Equal(AccessibleRole.StatusBar, instance.Role);
        }

        public static IEnumerable<object[]> CreateDefaultItem_Button_TestData()
        {
            EventHandler onClick = (sender, e) => { };

            yield return new object[] { null, null, null };
            yield return new object[] { string.Empty, new Bitmap(10, 10), onClick };
            yield return new object[] { "text", new Bitmap(10, 10), onClick };
            yield return new object[] { "-", new Bitmap(10, 10), onClick };
        }

        [WinFormsTheory]
        [MemberData(nameof(CreateDefaultItem_Button_TestData))]
        public void StatusStrip_CreateDefaultItem_Invoke_Success(string text, Image image, EventHandler onClick)
        {
            using var control = new SubStatusStrip();
            ToolStripStatusLabel button = Assert.IsType<ToolStripStatusLabel>(control.CreateDefaultItem(text, image, onClick));
            Assert.Equal(text, button.Text);
            Assert.Same(image, button.Image);
        }

        public static IEnumerable<object[]> Dispose_TestData()
        {
            foreach (RightToLeft rightToLeft in Enum.GetValues(typeof(RightToLeft)))
            {
                yield return new object[] { rightToLeft, true };
                yield return new object[] { rightToLeft, false };
            }
        }

        [WinFormsTheory]
        [MemberData(nameof(Dispose_TestData))]
        public void StatusStrip_Dispose_Invoke_Success(RightToLeft rightToLeft, bool sizingGrip)
        {
            using var control = new StatusStrip
            {
                RightToLeft = rightToLeft,
                SizingGrip = sizingGrip
            };
            int callCount = 0;
            void handler(object sender, EventArgs e)
            {
                Assert.Null(control.Parent);
                Assert.Empty(control.Controls);
                Assert.Empty(control.Items);
                Assert.Empty(control.DataBindings);
                Assert.False(control.IsHandleCreated);
                Assert.True(control.Disposing);
                Assert.Equal(callCount > 0, control.IsDisposed);
                callCount++;
            }

            control.Disposed += handler;

            try
            {
                control.Dispose();
                Assert.Null(control.Parent);
                Assert.Empty(control.Controls);
                Assert.Empty(control.Items);
                Assert.Empty(control.DataBindings);
                Assert.True(control.IsDisposed);
                Assert.False(control.Disposing);
                Assert.Equal(1, callCount);
                Assert.False(control.IsHandleCreated);

                // Dispose multiple times.
                control.Dispose();
                Assert.Null(control.Parent);
                Assert.Empty(control.Controls);
                Assert.Empty(control.Items);
                Assert.Empty(control.DataBindings);
                Assert.True(control.IsDisposed);
                Assert.False(control.Disposing);
                Assert.Equal(2, callCount);
                Assert.False(control.IsHandleCreated);
            }
            finally
            {
                control.Disposed -= handler;
            }
        }

        [WinFormsTheory]
        [MemberData(nameof(Dispose_TestData))]
        public void StatusStrip_Dispose_InvokeDisposing_Success(RightToLeft rightToLeft, bool sizingGrip)
        {
            using var control = new SubStatusStrip
            {
                RightToLeft = rightToLeft,
                SizingGrip = sizingGrip
            };
            int callCount = 0;
            void handler(object sender, EventArgs e)
            {
                Assert.Null(control.Parent);
                Assert.Empty(control.Controls);
                Assert.Empty(control.Items);
                Assert.Empty(control.DataBindings);
                Assert.False(control.IsHandleCreated);
                Assert.True(control.Disposing);
                Assert.Equal(callCount > 0, control.IsDisposed);
                callCount++;
            }

            control.Disposed += handler;

            try
            {
                control.Dispose(true);
                Assert.Null(control.Parent);
                Assert.Empty(control.Controls);
                Assert.Empty(control.Items);
                Assert.Empty(control.DataBindings);
                Assert.True(control.IsDisposed);
                Assert.False(control.Disposing);
                Assert.Equal(1, callCount);
                Assert.False(control.IsHandleCreated);

                // Dispose multiple times.
                control.Dispose(true);
                Assert.Null(control.Parent);
                Assert.Empty(control.Controls);
                Assert.Empty(control.Items);
                Assert.Empty(control.DataBindings);
                Assert.True(control.IsDisposed);
                Assert.False(control.Disposing);
                Assert.Equal(2, callCount);
                Assert.False(control.IsHandleCreated);
            }
            finally
            {
                control.Disposed -= handler;
            }
        }

        public static IEnumerable<object[]> Dispose_NotDisposing_TestData()
        {
            yield return new object[] { RightToLeft.Yes, true, 1 };
            yield return new object[] { RightToLeft.No, true, 0 };
            yield return new object[] { RightToLeft.Inherit, true, 0 };

            yield return new object[] { RightToLeft.Yes, false, 0 };
            yield return new object[] { RightToLeft.No, false, 0 };
            yield return new object[] { RightToLeft.Inherit, false, 0 };
        }

        [WinFormsTheory]
        [MemberData(nameof(Dispose_NotDisposing_TestData))]
        public void StatusStrip_Dispose_InvokeNotDisposing_Success(RightToLeft rightToLeft, bool sizingGrip, int expectedChildrenCallCount1)
        {
            using var control = new SubStatusStrip
            {
                RightToLeft = rightToLeft,
                SizingGrip = sizingGrip
            };
            int callCount = 0;
            void handler(object sender, EventArgs e) => callCount++;
            control.Disposed += handler;

            try
            {
                control.Dispose(false);
                Assert.Null(control.Parent);
                Assert.Equal(expectedChildrenCallCount1, control.Controls.Count);
                Assert.Empty(control.Items);
                Assert.Empty(control.DataBindings);
                Assert.False(control.IsDisposed);
                Assert.False(control.Disposing);
                Assert.Equal(0, callCount);
                Assert.False(control.IsHandleCreated);

                // Dispose multiple times.
                control.Dispose(false);
                Assert.Null(control.Parent);
                Assert.Equal(expectedChildrenCallCount1, control.Controls.Count);
                Assert.Empty(control.Items);
                Assert.Empty(control.DataBindings);
                Assert.False(control.IsDisposed);
                Assert.False(control.Disposing);
                Assert.Equal(0, callCount);
                Assert.False(control.IsHandleCreated);
            }
            finally
            {
                control.Disposed -= handler;
            }
        }

        [WinFormsTheory]
        [InlineData(null)]
        [InlineData("")]
        [InlineData("text")]
        [InlineData("-")]
        public void StatusStrip_CreateDefaultItem_PerformClick_Success(string text)
        {
            int callCount = 0;
            EventHandler onClick = (sender, e) => callCount++;
            using var control = new SubStatusStrip();
            ToolStripItem button = Assert.IsAssignableFrom<ToolStripItem>(control.CreateDefaultItem(text, null, onClick));
            button.PerformClick();
            Assert.Equal(1, callCount);
        }

        [WinFormsFact]
        public void StatusStrip_GetAutoSizeMode_Invoke_ReturnsExpected()
        {
            using var control = new SubStatusStrip();
            Assert.Equal(AutoSizeMode.GrowAndShrink, control.GetAutoSizeMode());
        }

        [WinFormsTheory]
        [InlineData(0, true)]
        [InlineData(SubStatusStrip.ScrollStateAutoScrolling, false)]
        [InlineData(SubStatusStrip.ScrollStateFullDrag, false)]
        [InlineData(SubStatusStrip.ScrollStateHScrollVisible, false)]
        [InlineData(SubStatusStrip.ScrollStateUserHasScrolled, false)]
        [InlineData(SubStatusStrip.ScrollStateVScrollVisible, false)]
        [InlineData(int.MaxValue, false)]
        [InlineData((-1), false)]
        public void StatusStrip_GetScrollState_Invoke_ReturnsExpected(int bit, bool expected)
        {
            using var control = new SubStatusStrip();
            Assert.Equal(expected, control.GetScrollState(bit));
        }

        [WinFormsTheory]
        [InlineData(ControlStyles.ContainerControl, true)]
        [InlineData(ControlStyles.UserPaint, true)]
        [InlineData(ControlStyles.Opaque, false)]
        [InlineData(ControlStyles.ResizeRedraw, true)]
        [InlineData(ControlStyles.FixedWidth, false)]
        [InlineData(ControlStyles.FixedHeight, false)]
        [InlineData(ControlStyles.StandardClick, true)]
        [InlineData(ControlStyles.Selectable, false)]
        [InlineData(ControlStyles.UserMouse, false)]
        [InlineData(ControlStyles.SupportsTransparentBackColor, true)]
        [InlineData(ControlStyles.StandardDoubleClick, true)]
        [InlineData(ControlStyles.AllPaintingInWmPaint, true)]
        [InlineData(ControlStyles.CacheText, false)]
        [InlineData(ControlStyles.EnableNotifyMessage, false)]
        [InlineData(ControlStyles.DoubleBuffer, false)]
        [InlineData(ControlStyles.OptimizedDoubleBuffer, true)]
        [InlineData(ControlStyles.UseTextForAccessibility, true)]
        [InlineData((ControlStyles)0, true)]
        [InlineData((ControlStyles)int.MaxValue, false)]
        [InlineData((ControlStyles)(-1), false)]
        public void StatusStrip_GetStyle_Invoke_ReturnsExpected(ControlStyles flag, bool expected)
        {
            using var control = new SubStatusStrip();
            Assert.Equal(expected, control.GetStyle(flag));

            // Call again to test caching.
            Assert.Equal(expected, control.GetStyle(flag));
        }

        public static IEnumerable<object[]> OnLayout_TestData()
        {
            foreach (ToolStripLayoutStyle layoutStyle in Enum.GetValues(typeof(ToolStripLayoutStyle)))
            {
                foreach (DockStyle dock in Enum.GetValues(typeof(DockStyle)))
                {
                    yield return new object[] { layoutStyle, dock, new LayoutEventArgs(null, null) };
                    yield return new object[] { layoutStyle, dock, new LayoutEventArgs(new Control(), "AffectedProperty") };
                    yield return new object[] { layoutStyle, dock, new LayoutEventArgs(new SubToolStripItem(), "AffectedProperty") };
                }
            }
        }

        [WinFormsTheory]
        [MemberData(nameof(OnLayout_TestData))]
        public void Control_OnLayout_Invoke_CallsLayout(ToolStripLayoutStyle layoutStyle, DockStyle dock, LayoutEventArgs eventArgs)
        {
            using var control = new SubStatusStrip
            {
                LayoutStyle = layoutStyle,
                Dock = dock
            };
            int callCount = 0;
            LayoutEventHandler handler = (sender, e) =>
            {
                Assert.Same(control, sender);
                Assert.Same(eventArgs, e);
                callCount++;
            };

            // Call with handler.
            control.Layout += handler;
            control.OnLayout(eventArgs);
            Assert.Equal(1, callCount);

            // Remove handler.
            control.Layout -= handler;
            control.OnLayout(eventArgs);
            Assert.Equal(1, callCount);
        }

        [WinFormsFact]
        public void Control_OnLayout_Invoke_CreatesSizingGrip()
        {
            var eventArgs = new LayoutEventArgs(null, null);

            using var control = new SubStatusStrip
            {
                RightToLeft = RightToLeft.Yes
            };
            int layoutCallCount = 0;
            control.Layout += (sender, e) =>
            {
                if (e == eventArgs)
                {
                    layoutCallCount++;
                }
            };
            control.OnLayout(eventArgs);
            Assert.Equal(1, layoutCallCount);
            Control grip = Assert.IsAssignableFrom<Control>(Assert.Single(control.Controls));
            Assert.Equal(control.SizeGripBounds, grip.Bounds);
            Assert.Equal(Color.Transparent, grip.BackColor);
        }

        [WinFormsFact]
        public void StatusStrip_OnLayout_NullE_ThrowsNullReferenceException()
        {
            using var control = new SubStatusStrip();
            Assert.Throws<NullReferenceException>(() => control.OnLayout(null));
        }

        public static IEnumerable<object[]> OnPaintBackground_TestData()
        {
            foreach (RightToLeft rightToLeft in Enum.GetValues(typeof(RightToLeft)))
            {
                yield return new object[] { rightToLeft, true };
                yield return new object[] { rightToLeft, false };
            }
        }

        [WinFormsTheory]
        [MemberData(nameof(OnPaintBackground_TestData))]
        public void StatusStrip_OnPaintBackground_Invoke_Success(RightToLeft rightToLeft, bool sizingGrip)
        {
            using var image = new Bitmap(10, 10);
            using Graphics graphics = Graphics.FromImage(image);
            var eventArgs = new PaintEventArgs(graphics, new Rectangle(1, 2, 3, 4));

            using var control = new SubStatusStrip
            {
                RightToLeft = rightToLeft,
                SizingGrip = sizingGrip
            };
            int callCount = 0;
            PaintEventHandler handler = (sender, e) =>
            {
                Assert.Same(control, sender);
                Assert.Same(eventArgs, e);
                callCount++;
            };

            // Call with handler.
            control.Paint += handler;
            control.OnPaintBackground(eventArgs);
            Assert.Equal(0, callCount);
            Assert.False(control.IsHandleCreated);

            // Remove handler.
            control.Paint -= handler;
            control.OnPaintBackground(eventArgs);
            Assert.Equal(0, callCount);
            Assert.False(control.IsHandleCreated);
        }

        [WinFormsFact]
        public void StatusStrip_OnPaintBackground_NullE_ThrowsArgumentNullException()
        {
            using var control = new SubStatusStrip();
            Assert.Throws<ArgumentNullException>(() => control.OnPaintBackground(null));
        }

        private class SubToolStripRenderer : ToolStripRenderer
        {
        }

        private class SubToolStripItem : ToolStripItem
        {
        }

        private class NonReadOnlyControlsStatusStrip : StatusStrip
        {
            protected override ControlCollection CreateControlsInstance() => new ControlCollection(this);
        }

        private class SubStatusStrip : StatusStrip
        {
            public new const int ScrollStateAutoScrolling = StatusStrip.ScrollStateAutoScrolling;

            public new const int ScrollStateHScrollVisible = StatusStrip.ScrollStateHScrollVisible;

            public new const int ScrollStateVScrollVisible = StatusStrip.ScrollStateVScrollVisible;

            public new const int ScrollStateUserHasScrolled = StatusStrip.ScrollStateUserHasScrolled;

            public new const int ScrollStateFullDrag = StatusStrip.ScrollStateFullDrag;

            public new bool CanEnableIme => base.CanEnableIme;

            public new bool CanRaiseEvents => base.CanRaiseEvents;

            public new CreateParams CreateParams => base.CreateParams;

            public new Cursor DefaultCursor => base.DefaultCursor;

            public new DockStyle DefaultDock => base.DefaultDock;

            public new Padding DefaultGripMargin => base.DefaultGripMargin;

            public new ImeMode DefaultImeMode => base.DefaultImeMode;

            public new Padding DefaultMargin => base.DefaultMargin;

            public new Size DefaultMaximumSize => base.DefaultMaximumSize;

            public new Size DefaultMinimumSize => base.DefaultMinimumSize;

            public new Padding DefaultPadding => base.DefaultPadding;

            public new Size DefaultSize => base.DefaultSize;

            public new bool DefaultShowItemToolTips => base.DefaultShowItemToolTips;

            public new bool DesignMode => base.DesignMode;

            public new ToolStripItemCollection DisplayedItems => base.DisplayedItems;

            public new bool DoubleBuffered
            {
                get => base.DoubleBuffered;
                set => base.DoubleBuffered = value;
            }

            public new EventHandlerList Events => base.Events;

            public new int FontHeight
            {
                get => base.FontHeight;
                set => base.FontHeight = value;
            }

            public new ImeMode ImeModeBase
            {
                get => base.ImeModeBase;
                set => base.ImeModeBase = value;
            }

            public new bool HScroll
            {
                get => base.HScroll;
                set => base.HScroll = value;
            }

            public new Size MaxItemSize => base.MaxItemSize;

            public new bool ResizeRedraw
            {
                get => base.ResizeRedraw;
                set => base.ResizeRedraw = value;
            }

            public new bool ShowFocusCues => base.ShowFocusCues;

            public new bool ShowKeyboardCues => base.ShowKeyboardCues;

            public new bool VScroll
            {
                get => base.VScroll;
                set => base.VScroll = value;
            }

            public new AccessibleObject CreateAccessibilityInstance() => base.CreateAccessibilityInstance();

            public new ToolStripItem CreateDefaultItem(string text, Image image, EventHandler onClick) => base.CreateDefaultItem(text, image, onClick);

            public new void Dispose(bool disposing) => base.Dispose(disposing);

            public new AutoSizeMode GetAutoSizeMode() => base.GetAutoSizeMode();

            public new bool GetScrollState(int bit) => base.GetScrollState(bit);

            public new bool GetStyle(ControlStyles flag) => base.GetStyle(flag);

            public new void OnLayout(LayoutEventArgs levent) => base.OnLayout(levent);

            public new void OnPaintBackground(PaintEventArgs e) => base.OnPaintBackground(e);

            public new void OnSpringTableLayoutCore() => base.OnSpringTableLayoutCore();

            public new void SetDisplayedItems() => base.SetDisplayedItems();

            public new void WndProc(ref Message m) => base.WndProc(ref m);
        }
    }
}
