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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Drawing;
using System.Windows.Forms.TestUtilities;
using Point = System.Drawing.Point;
using Size = System.Drawing.Size;
namespace System.ComponentModel.Design.Tests;
public class ByteViewerTests
{
[WinFormsFact]
public void ByteViewer_Ctor_Default()
{
using SubByteViewer control = new();
Assert.Null(control.AccessibleDefaultActionDescription);
Assert.Null(control.AccessibleDescription);
Assert.Null(control.AccessibleName);
Assert.Equal(AccessibleRole.Default, control.AccessibleRole);
Assert.False(control.AllowDrop);
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.False(control.AutoSize);
Assert.Equal(AutoSizeMode.GrowOnly, control.AutoSizeMode);
Assert.Equal(Control.DefaultBackColor, control.BackColor);
Assert.Null(control.BackgroundImage);
Assert.Equal(ImageLayout.Tile, control.BackgroundImageLayout);
Assert.Null(control.BindingContext);
Assert.Equal(BorderStyle.None, control.BorderStyle);
Assert.True(control.Bottom > 0);
Assert.Equal(new Rectangle(0, 0, control.Width, control.Height), control.Bounds);
Assert.True(control.CanEnableIme);
Assert.False(control.CanFocus);
Assert.True(control.CanRaiseEvents);
Assert.False(control.CanSelect);
Assert.False(control.Capture);
Assert.True(control.CausesValidation);
Assert.Equal(TableLayoutPanelCellBorderStyle.Inset, control.CellBorderStyle);
Assert.Equal(new Rectangle(0, 0, control.Width, control.Height), control.ClientRectangle);
Assert.Equal(new Size(control.Width, control.Height), control.ClientSize);
Assert.Equal(1, control.ColumnCount);
ColumnStyle columnStyle = Assert.IsType<ColumnStyle>(Assert.Single(control.ColumnStyles));
Assert.Equal(SizeType.Percent, columnStyle.SizeType);
Assert.Equal(100F, columnStyle.Width);
Assert.Same(control.LayoutSettings.ColumnStyles, control.ColumnStyles);
Assert.Null(control.Container);
Assert.False(control.ContainsFocus);
Assert.Null(control.ContextMenuStrip);
Assert.NotEmpty(control.Controls);
Assert.Same(control.Controls, control.Controls);
Assert.False(control.Created);
Assert.Equal(Cursors.Default, control.Cursor);
Assert.Equal(Cursors.Default, control.DefaultCursor);
Assert.Equal(ImeMode.Inherit, control.DefaultImeMode);
Assert.Equal(new Padding(3), control.DefaultMargin);
Assert.Equal(Size.Empty, control.DefaultMaximumSize);
Assert.Equal(Size.Empty, control.DefaultMinimumSize);
Assert.Equal(Padding.Empty, control.DefaultPadding);
Assert.Equal(new Size(200, 100), control.DefaultSize);
Assert.False(control.DesignMode);
Assert.Equal(new Rectangle(0, 0, control.Width, control.Height), control.DisplayRectangle);
Assert.Equal(DockStyle.None, 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(0, control.DockPadding.Left);
Assert.Equal(0, 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(TableLayoutPanelGrowStyle.AddRows, control.GrowStyle);
Assert.True(control.HasChildren);
Assert.True(control.Height > 0);
Assert.NotNull(control.HorizontalScroll);
Assert.Same(control.HorizontalScroll, control.HorizontalScroll);
Assert.False(control.HScroll);
Assert.Equal(ImeMode.NoControl, control.ImeMode);
Assert.Equal(ImeMode.NoControl, control.ImeModeBase);
Assert.False(control.IsAccessible);
Assert.False(control.IsMirrored);
Assert.NotNull(control.LayoutEngine);
Assert.Same(control.LayoutEngine, control.LayoutEngine);
Assert.NotNull(control.LayoutSettings);
Assert.Same(control.LayoutSettings, control.LayoutSettings);
Assert.Equal(0, control.Left);
Assert.Equal(Point.Empty, control.Location);
Assert.Equal(new Padding(3), control.Margin);
Assert.Equal(Size.Empty, control.MaximumSize);
Assert.Equal(Size.Empty, control.MinimumSize);
Assert.Equal(Padding.Empty, control.Padding);
Assert.Null(control.Parent);
Assert.Equal(new Size(4, 4), control.PreferredSize);
Assert.Equal("Microsoft\u00AE .NET", control.ProductName);
Assert.False(control.RecreatingHandle);
Assert.Null(control.Region);
Assert.True(control.ResizeRedraw);
Assert.True(control.Right > 0);
Assert.Equal(RightToLeft.No, control.RightToLeft);
Assert.Equal(1, control.RowCount);
RowStyle rowStyle = Assert.IsType<RowStyle>(Assert.Single(control.RowStyles));
Assert.Equal(SizeType.Percent, rowStyle.SizeType);
Assert.Equal(100F, rowStyle.Height);
Assert.Same(control.LayoutSettings.RowStyles, control.RowStyles);
Assert.True(control.ShowFocusCues);
Assert.True(control.ShowKeyboardCues);
Assert.Equal(new Size(control.Width, control.Height), control.Size);
Assert.Equal(0, control.TabIndex);
Assert.False(control.TabStop);
Assert.Empty(control.Text);
Assert.Equal(0, control.Top);
Assert.Null(control.TopLevelControl);
Assert.False(control.UseWaitCursor);
Assert.True(control.Visible);
Assert.NotNull(control.VerticalScroll);
Assert.Same(control.VerticalScroll, control.VerticalScroll);
Assert.False(control.VScroll);
Assert.True(control.Width > 0);
Assert.False(control.IsHandleCreated);
}
[WinFormsFact]
public void ByteViewer_CreateParams_GetDefault_ReturnsExpected()
{
using SubByteViewer control = new();
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Null(createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x10000, createParams.ExStyle);
Assert.Equal(control.Height, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(0x56000000, createParams.Style);
Assert.Equal(control.Width, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.False(control.IsHandleCreated);
}
[WinFormsFact]
public void ByteViewer_GetAutoSizeMode_Invoke_ReturnsExpected()
{
using SubByteViewer control = new();
Assert.Equal(AutoSizeMode.GrowOnly, control.GetAutoSizeMode());
}
[WinFormsFact]
public void ByteViewer_GetBytes_Invoke_ReturnsExpected()
{
using ByteViewer control = new();
Assert.Empty(control.GetBytes());
Assert.False(control.IsHandleCreated);
}
[WinFormsFact]
public void ByteViewer_GetDisplayMode_Invoke_ReturnsExpected()
{
using ByteViewer control = new();
Assert.Equal(DisplayMode.Hexdump, control.GetDisplayMode());
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(0, true)]
[InlineData(SubByteViewer.ScrollStateAutoScrolling, false)]
[InlineData(SubByteViewer.ScrollStateFullDrag, false)]
[InlineData(SubByteViewer.ScrollStateHScrollVisible, false)]
[InlineData(SubByteViewer.ScrollStateUserHasScrolled, false)]
[InlineData(SubByteViewer.ScrollStateVScrollVisible, false)]
[InlineData(int.MaxValue, false)]
[InlineData((-1), false)]
public void ByteViewer_GetScrollState_Invoke_ReturnsExpected(int bit, bool expected)
{
using SubByteViewer control = new();
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 ByteViewer_GetStyle_Invoke_ReturnsExpected(ControlStyles flag, bool expected)
{
using SubByteViewer control = new();
Assert.Equal(expected, control.GetStyle(flag));
// Call again to test caching.
Assert.Equal(expected, control.GetStyle(flag));
}
[WinFormsFact]
public void ByteViewer_GetTopLevel_Invoke_ReturnsExpected()
{
using SubByteViewer control = new();
Assert.False(control.GetTopLevel());
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void ByteViewer_OnHandleCreated_InvokeWithHandle_CallsHandleCreated(EventArgs eventArgs)
{
using SubByteViewer control = new();
Assert.NotEqual(IntPtr.Zero, control.Handle);
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.HandleCreated += handler;
control.OnHandleCreated(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.IsHandleCreated);
// Remove handler.
control.HandleCreated -= handler;
control.OnHandleCreated(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.IsHandleCreated);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void ByteViewer_OnHandleDestroyed_Invoke_CallsHandleDestroyed(EventArgs eventArgs)
{
using SubByteViewer control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.HandleDestroyed += handler;
control.OnHandleDestroyed(eventArgs);
Assert.Equal(1, callCount);
Assert.False(control.IsHandleCreated);
// Remove handler.
control.HandleDestroyed -= handler;
control.OnHandleDestroyed(eventArgs);
Assert.Equal(1, callCount);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void ByteViewer_OnHandleDestroyed_InvokeWithHandle_CallsHandleDestroyed(EventArgs eventArgs)
{
using SubByteViewer control = new();
Assert.NotEqual(IntPtr.Zero, control.Handle);
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.HandleDestroyed += handler;
control.OnHandleDestroyed(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.IsHandleCreated);
// Remove handler.
control.HandleDestroyed -= handler;
control.OnHandleDestroyed(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.IsHandleCreated);
}
public static IEnumerable<object[]> OnLayout_TestData()
{
yield return new object[] { new LayoutEventArgs(null, null) };
yield return new object[] { new LayoutEventArgs(new Control(), null) };
yield return new object[] { new LayoutEventArgs(new Control(), string.Empty) };
yield return new object[] { new LayoutEventArgs(new Control(), "ChildIndex") };
yield return new object[] { new LayoutEventArgs(new Control(), "Visible") };
yield return new object[] { new LayoutEventArgs(new Control(), "Items") };
yield return new object[] { new LayoutEventArgs(new Control(), "Rows") };
yield return new object[] { new LayoutEventArgs(new Control(), "Columns") };
yield return new object[] { new LayoutEventArgs(new Control(), "RowStyles") };
yield return new object[] { new LayoutEventArgs(new Control(), "ColumnStyles") };
yield return new object[] { new LayoutEventArgs(new Control(), "TableIndex") };
yield return new object[] { new LayoutEventArgs(new Control(), "GrowStyle") };
yield return new object[] { new LayoutEventArgs(new Control(), "CellBorderStyle") };
yield return new object[] { new LayoutEventArgs(new Control(), "LayoutSettings") };
yield return new object[] { new LayoutEventArgs(new Control(), "NoSuchProperty") };
}
[WinFormsTheory]
[MemberData(nameof(OnLayout_TestData))]
public void ByteViewer_OnLayout_Invoke_CallsLayout(LayoutEventArgs eventArgs)
{
using SubByteViewer control = new();
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);
Assert.False(control.IsHandleCreated);
// Remove handler.
control.Layout -= handler;
control.OnLayout(eventArgs);
Assert.Equal(1, callCount);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(OnLayout_TestData))]
public void ByteViewer_OnLayout_InvokeWithHandle_CallsLayout(LayoutEventArgs eventArgs)
{
using SubByteViewer control = new();
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++;
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);
Assert.True(control.IsHandleCreated);
Assert.Equal(1, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Remove handler.
control.Layout -= handler;
control.OnLayout(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.IsHandleCreated);
Assert.Equal(2, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsFact]
public void ByteViewer_OnLayout_InvokeNullE_ThrowsNullReferenceException()
{
using SubByteViewer control = new();
Assert.Throws<NullReferenceException>(() => control.OnLayout(null));
}
[WinFormsTheory]
[CommonMemberData(typeof(CommonTestHelperEx), nameof(CommonTestHelperEx.GetKeyEventArgsTheoryData))]
public void ByteViewer_OnKeyDown_Invoke_CallsKeyDown(KeyEventArgs eventArgs)
{
using SubByteViewer control = new();
int callCount = 0;
KeyEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.KeyDown += handler;
control.OnKeyDown(eventArgs);
Assert.Equal(0, callCount);
// Remove handler.
control.KeyDown -= handler;
control.OnKeyDown(eventArgs);
Assert.Equal(0, callCount);
}
[WinFormsFact]
public void ByteViewer_OnPaint_Invoke_CallsPaint()
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using PaintEventArgs eventArgs = new(graphics, Rectangle.Empty);
using SubByteViewer control = new();
int callCount = 0;
PaintEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.Paint += handler;
control.OnPaint(eventArgs);
Assert.Equal(1, callCount);
Assert.False(control.IsHandleCreated);
// Remove handler.
control.Paint -= handler;
control.OnPaint(eventArgs);
Assert.Equal(1, callCount);
Assert.False(control.IsHandleCreated);
}
public static IEnumerable<object[]> OnPaint_WithBytes_TestData()
{
foreach (DisplayMode displayMode in Enum.GetValues(typeof(DisplayMode)))
{
yield return new object[] { Array.Empty<byte>(), displayMode };
yield return new object[] { new byte[] { 1, 2, 3 }, displayMode };
yield return new object[] { new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 }, displayMode };
yield return new object[] { new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }, displayMode };
}
}
[WinFormsTheory]
[MemberData(nameof(OnPaint_WithBytes_TestData))]
public void ByteViewer_OnPaint_InvokeWithBytes_CallsPaint(byte[] bytes, DisplayMode displayMode)
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using PaintEventArgs eventArgs = new(graphics, Rectangle.Empty);
using SubByteViewer control = new();
control.SetBytes(bytes);
control.SetDisplayMode(displayMode);
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++;
int callCount = 0;
PaintEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.Paint += handler;
control.OnPaint(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Remove handler.
control.Paint -= handler;
control.OnPaint(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsFact]
public void ByteViewer_OnPaint_InvokeWithHandle_CallsPaint()
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using PaintEventArgs eventArgs = new(graphics, Rectangle.Empty);
using SubByteViewer control = new();
int callCount = 0;
PaintEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.Paint += handler;
control.OnPaint(eventArgs);
Assert.Equal(1, callCount);
Assert.False(control.IsHandleCreated);
// Remove handler.
control.Paint -= handler;
control.OnPaint(eventArgs);
Assert.Equal(1, callCount);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(OnPaint_WithBytes_TestData))]
public void ByteViewer_OnPaint_InvokeWithBytesWithHandle_CallsPaint(byte[] bytes, DisplayMode displayMode)
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using PaintEventArgs eventArgs = new(graphics, Rectangle.Empty);
using SubByteViewer control = new();
control.SetBytes(bytes);
control.SetDisplayMode(displayMode);
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++;
int callCount = 0;
PaintEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.Paint += handler;
control.OnPaint(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Remove handler.
control.Paint -= handler;
control.OnPaint(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsFact]
public void ByteViewer_OnPaint_NullE_ThrowsNullReferenceException()
{
using SubByteViewer control = new();
Assert.Throws<NullReferenceException>(() => control.OnPaint(null));
}
[WinFormsFact]
public void ByteViewer_SaveToFile_InvokeWithBytes_Success()
{
using ByteViewer control = new();
control.SetBytes([1, 2, 3]);
string path = "ByteViewerContent";
try
{
control.SaveToFile(path);
Assert.Equal(new byte[] { 1, 2, 3 }, File.ReadAllBytes(path));
}
finally
{
File.Delete(path);
}
}
[WinFormsFact]
public void ByteViewer_SaveToFile_InvokeNullPath_ThrowsArgumentNullException()
{
using ByteViewer control = new();
control.SetBytes(Array.Empty<byte>());
Assert.Throws<ArgumentNullException>("path", () => control.SaveToFile(null));
}
[WinFormsTheory]
[InlineData("")]
[InlineData("\0")]
public void ByteViewer_SaveToFile_InvokeInvalidPath_ThrowsArgumentException(string path)
{
using ByteViewer control = new();
control.SetBytes(Array.Empty<byte>());
Assert.Throws<ArgumentException>("path", () => control.SaveToFile(path));
}
public static IEnumerable<object[]> ScrollChanged_TestData()
{
yield return new object[] { null, null };
yield return new object[] { null, new EventArgs() };
yield return new object[] { new(), null };
yield return new object[] { new(), new EventArgs() };
}
[WinFormsTheory]
[MemberData(nameof(ScrollChanged_TestData))]
public void ByteViewer_ScrollChanged_Invoke_Success(object source, EventArgs e)
{
using SubByteViewer control = new();
control.ScrollChanged(source, e);
Assert.False(control.IsHandleCreated);
// Call again.
control.ScrollChanged(source, e);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(ScrollChanged_TestData))]
public void ByteViewer_ScrollChanged_InvokeWithHandle_Success(object source, EventArgs e)
{
using SubByteViewer control = new();
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.ScrollChanged(source, e);
Assert.True(control.IsHandleCreated);
Assert.Equal(1, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Call again.
control.ScrollChanged(source, e);
Assert.True(control.IsHandleCreated);
Assert.Equal(2, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
public static IEnumerable<object[]> SetBytes_TestData()
{
yield return new object[] { Array.Empty<byte>() };
yield return new object[] { new byte[] { 1, 2, 3 } };
yield return new object[] { new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 } };
yield return new object[] { new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 } };
}
[WinFormsTheory]
[MemberData(nameof(SetBytes_TestData))]
public void ByteViewer_SetBytes_Invoke_GetReturnExpected(byte[] bytes)
{
using ByteViewer control = new();
control.SetBytes(bytes);
Assert.Same(bytes, control.GetBytes());
Assert.False(control.IsHandleCreated);
// Set same.
control.SetBytes(bytes);
Assert.Same(bytes, control.GetBytes());
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(SetBytes_TestData))]
public void ByteViewer_SetBytes_InvokeWithBytes_GetReturnExpected(byte[] bytes)
{
using ByteViewer control = new();
control.SetBytes([1]);
control.SetBytes(bytes);
Assert.Same(bytes, control.GetBytes());
Assert.False(control.IsHandleCreated);
// Set same.
control.SetBytes(bytes);
Assert.Same(bytes, control.GetBytes());
Assert.False(control.IsHandleCreated);
}
[WinFormsFact]
public void ByteViewer_SetBytes_NullBytes_ThrowsArgumentNullException()
{
using ByteViewer control = new();
Assert.Throws<ArgumentNullException>("bytes", () => control.SetBytes(null));
}
[WinFormsTheory]
[InlineData(DisplayMode.Auto)]
[InlineData(DisplayMode.Hexdump)]
[InlineData(DisplayMode.Ansi)]
[InlineData(DisplayMode.Unicode)]
public void ByteViewer_SetDisplayMode_InvokeNoBytes_GetReturnsExpected(DisplayMode value)
{
using ByteViewer control = new();
control.SetDisplayMode(value);
Assert.Equal(value, control.GetDisplayMode());
Assert.False(control.IsHandleCreated);
// Set same.
control.SetDisplayMode(value);
Assert.Equal(value, control.GetDisplayMode());
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[EnumData<DisplayMode>]
public void ByteViewer_SetDisplayMode_InvokeWithBytes_GetReturnsExpected(DisplayMode value)
{
using ByteViewer control = new();
control.SetBytes([1, 2, 3]);
control.SetDisplayMode(value);
Assert.Equal(value, control.GetDisplayMode());
Assert.False(control.IsHandleCreated);
// Set same.
control.SetDisplayMode(value);
Assert.Equal(value, control.GetDisplayMode());
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(DisplayMode.Ansi, 2, 3)]
[InlineData(DisplayMode.Auto, 0, 0)]
[InlineData(DisplayMode.Hexdump, 0, 0)]
[InlineData(DisplayMode.Unicode, 2, 3)]
public void ByteViewer_SetDisplayMode_InvokeWithBytesWithHandle_GetReturnsExpected(DisplayMode value, int expectedInvalidatedCallCount1, int expectedInvalidatedCallCount2)
{
using ByteViewer control = new();
control.SetBytes([1, 2, 3]);
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.SetDisplayMode(value);
Assert.Equal(value, control.GetDisplayMode());
Assert.True(control.IsHandleCreated);
Assert.Equal(expectedInvalidatedCallCount1, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Set same.
control.SetDisplayMode(value);
Assert.Equal(value, control.GetDisplayMode());
Assert.True(control.IsHandleCreated);
Assert.Equal(expectedInvalidatedCallCount2, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
public static IEnumerable<object[]> SetDisplayMode_AnsiWithBytes_TestData()
{
yield return new object[] { new byte[] { 1, 2, 3 }, "\u0001\u0002\u0003" };
yield return new object[] { new byte[] { (byte)'a', (byte)'b', (byte)'c' }, "abc" };
yield return new object[] { new byte[] { (byte)'a', (byte)'b', (byte)'c', (byte)'\0', (byte)'d', (byte)'e', (byte)'f' }, $"abc\u000Bdef" };
}
[WinFormsTheory]
[MemberData(nameof(SetDisplayMode_AnsiWithBytes_TestData))]
public void ByteViewer_SetDisplayMode_AnsiWithBytes_EditReturnsExpected(byte[] bytes, string expected)
{
using ByteViewer control = new();
control.SetBytes(bytes);
control.SetDisplayMode(DisplayMode.Ansi);
TextBox textBox = control.Controls.OfType<TextBox>().Single();
ScrollBar scrollBar = control.Controls.OfType<ScrollBar>().Single();
Assert.Equal(expected, textBox.Text);
Assert.True(textBox.Visible);
Assert.False(scrollBar.Visible);
Assert.False(control.IsHandleCreated);
// Set different.
control.SetBytes([(byte)'1', (byte)'2', (byte)'3']);
Assert.Equal("123", textBox.Text);
Assert.True(textBox.Visible);
Assert.False(scrollBar.Visible);
Assert.False(control.IsHandleCreated);
}
public static IEnumerable<object[]> SetDisplayMode_UnicodeWithBytes_TestData()
{
yield return new object[] { new byte[] { 1, 0, 2, 0, 3, 0 }, "\u0001\u0002\u0003" };
yield return new object[] { new byte[] { (byte)'a', 0, (byte)'b', 0, (byte)'c', 0 }, "abc" };
yield return new object[] { new byte[] { (byte)'a', 0, (byte)'b', 0, (byte)'c', 0, (byte)'\0', 0, (byte)'d', 0, (byte)'e', 0, (byte)'f', 0 }, $"abc\u000Bdef" };
}
[WinFormsTheory]
[MemberData(nameof(SetDisplayMode_UnicodeWithBytes_TestData))]
public void ByteViewer_SetDisplayMode_UnicodeWithBytes_EditReturnsExpected(byte[] bytes, string expected)
{
using ByteViewer control = new();
control.SetBytes(bytes);
control.SetDisplayMode(DisplayMode.Unicode);
TextBox textBox = control.Controls.OfType<TextBox>().Single();
ScrollBar scrollBar = control.Controls.OfType<ScrollBar>().Single();
Assert.Equal(expected, textBox.Text);
Assert.True(textBox.Visible);
Assert.False(scrollBar.Visible);
Assert.False(control.IsHandleCreated);
// Set different.
control.SetBytes([(byte)'1', 0, (byte)'2', 0, (byte)'3', 0]);
Assert.Equal("123", textBox.Text);
Assert.True(textBox.Visible);
Assert.False(scrollBar.Visible);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InvalidEnumData<DisplayMode>]
public void ByteViewer_SetDisplayMode_InvokeInvalidMode_ThrowsInvalidEnumArgumentException(DisplayMode value)
{
using ByteViewer control = new();
Assert.Throws<InvalidEnumArgumentException>("mode", () => control.SetDisplayMode(value));
}
[WinFormsFact]
public void ByteViewer_SetFile_InvokeNoBytes_Success()
{
using ByteViewer control = new();
using TempFile file = TempFile.Create([1, 2, 3]);
control.SetFile(file.Path);
Assert.Equal(new byte[] { 1, 2, 3 }, control.GetBytes());
}
[WinFormsFact]
public void ByteViewer_SetFile_InvokeWithBytes_Success()
{
using ByteViewer control = new();
control.SetBytes([4, 5, 6]);
using TempFile file = TempFile.Create([1, 2, 3]);
control.SetFile(file.Path);
Assert.Equal(new byte[] { 1, 2, 3 }, control.GetBytes());
}
[WinFormsFact]
public void ByteViewer_SetFile_InvokeNullPath_ThrowsArgumentNullException()
{
using ByteViewer control = new();
control.SetBytes(Array.Empty<byte>());
Assert.Throws<ArgumentNullException>("path", () => control.SetFile(null));
}
[WinFormsTheory]
[InlineData("")]
[InlineData("\0")]
public void ByteViewer_SetFile_InvokeInvalidPath_ThrowsArgumentException(string path)
{
using ByteViewer control = new();
control.SetBytes(Array.Empty<byte>());
Assert.Throws<ArgumentException>("path", () => control.SetFile(path));
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(0)]
[InlineData(1)]
public void ByteViewer_SetStartLine_InvokeNoBytes_Success(int line)
{
using ByteViewer control = new();
control.SetStartLine(line);
Assert.False(control.IsHandleCreated);
// Call again.
control.SetStartLine(line);
Assert.False(control.IsHandleCreated);
}
public static IEnumerable<object[]> SetStartLine_WithBytes_TestData()
{
yield return new object[] { Array.Empty<byte>(), -1 };
yield return new object[] { Array.Empty<byte>(), 0 };
yield return new object[] { Array.Empty<byte>(), 1 };
yield return new object[] { Array.Empty<byte>(), int.MaxValue };
yield return new object[] { new byte[] { 1, 2, 3 }, -1 };
yield return new object[] { new byte[] { 1, 2, 3 }, 0 };
yield return new object[] { new byte[] { 1, 2, 3 }, 1 };
yield return new object[] { new byte[] { 1, 2, 3 }, int.MaxValue };
yield return new object[] { new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 }, -1 };
yield return new object[] { new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 }, 0 };
yield return new object[] { new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 }, 1 };
yield return new object[] { new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 }, int.MaxValue };
}
[WinFormsTheory]
[MemberData(nameof(SetStartLine_WithBytes_TestData))]
public void ByteViewer_SetStartLine_InvokeWithBytes_Success(byte[] bytes, int line)
{
using ByteViewer control = new();
control.SetBytes(bytes);
control.SetStartLine(line);
Assert.False(control.IsHandleCreated);
// Call again.
control.SetStartLine(line);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(0)]
[InlineData(1)]
[InlineData(int.MaxValue)]
public void ByteViewer_SetStartLine_InvokeNoBytesWithHandle_Success(int line)
{
using ByteViewer control = new();
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.SetStartLine(line);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Call again.
control.SetStartLine(line);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsTheory]
[MemberData(nameof(SetStartLine_WithBytes_TestData))]
public void ByteViewer_SetStartLine_InvokeWithBytesWithHandle_Success(byte[] bytes, int line)
{
using ByteViewer control = new();
control.SetBytes(bytes);
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.SetStartLine(line);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Call again.
control.SetStartLine(line);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
private class SubByteViewer : ByteViewer
{
public new const int ScrollStateAutoScrolling = ScrollableControl.ScrollStateAutoScrolling;
public new const int ScrollStateHScrollVisible = ScrollableControl.ScrollStateHScrollVisible;
public new const int ScrollStateVScrollVisible = ScrollableControl.ScrollStateVScrollVisible;
public new const int ScrollStateUserHasScrolled = ScrollableControl.ScrollStateUserHasScrolled;
public new const int ScrollStateFullDrag = ScrollableControl.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 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 DesignMode => base.DesignMode;
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 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 AutoSizeMode GetAutoSizeMode() => base.GetAutoSizeMode();
public new bool GetScrollState(int bit) => base.GetScrollState(bit);
public new bool GetStyle(ControlStyles flag) => base.GetStyle(flag);
public new bool GetTopLevel() => base.GetTopLevel();
public new void OnHandleCreated(EventArgs e) => base.OnHandleCreated(e);
public new void OnHandleDestroyed(EventArgs e) => base.OnHandleDestroyed(e);
public new void OnLayout(LayoutEventArgs levent) => base.OnLayout(levent);
public new void OnKeyDown(KeyEventArgs e) => base.OnKeyDown(e);
public new void OnPaint(PaintEventArgs e) => base.OnPaint(e);
public new void ScrollChanged(object source, EventArgs e) => base.ScrollChanged(source, e);
}
}
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