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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;
namespace System.Windows.Forms.Tests;
// NB: doesn't require thread affinity
public class DrawListViewColumnHeaderEventArgsTests
{
public static IEnumerable<object[]> Ctor_Graphics_Rectangle_Int_ColumnHeader_ListViewItemStates_Color_Color_Font_TestData()
{
yield return new object[] { Rectangle.Empty, -2, null, (DrawItemState)(ListViewItemStates.Checked - 1), Color.Empty, Color.Empty, null };
yield return new object[] { new Rectangle(1, 2, 3, 4), -1, new ColumnHeader(), ListViewItemStates.Checked, Color.Red, Color.Blue, SystemFonts.DefaultFont };
yield return new object[] { new Rectangle(-1, 2, -3, -4), 0, new ColumnHeader(), ListViewItemStates.Checked, Color.Red, Color.Blue, SystemFonts.DefaultFont };
yield return new object[] { new Rectangle(1, 2, 3, 4), 1, new ColumnHeader(), ListViewItemStates.Checked, Color.Red, Color.Blue, SystemFonts.DefaultFont };
}
[Theory]
[MemberData(nameof(Ctor_Graphics_Rectangle_Int_ColumnHeader_ListViewItemStates_Color_Color_Font_TestData))]
public void DrawListViewColumnHeaderEventArgs_Ctor_Graphics_Rectangle_Int_ColumnHeader_ListViewItemStates_Color_Color_Font(Rectangle bounds, int columnIndex, ColumnHeader header, ListViewItemStates state, Color foreColor, Color backColor, Font font)
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
DrawListViewColumnHeaderEventArgs e = new(graphics, bounds, columnIndex, header, state, foreColor, backColor, font);
Assert.Same(graphics, e.Graphics);
Assert.Equal(bounds, e.Bounds);
Assert.Equal(columnIndex, e.ColumnIndex);
Assert.Same(header, e.Header);
Assert.Equal(state, e.State);
Assert.Equal(foreColor, e.ForeColor);
Assert.Equal(backColor, e.BackColor);
Assert.Equal(font, e.Font);
Assert.False(e.DrawDefault);
}
[Fact]
public void DrawListViewColumnHeaderEventArgs_Ctor_NullGraphics_ThrowsArgumentNullException()
{
Assert.Throws<ArgumentNullException>("graphics", () => new DrawListViewColumnHeaderEventArgs(null, new Rectangle(1, 2, 3, 4), 0, new ColumnHeader(), ListViewItemStates.Default, Color.Red, Color.Blue, SystemFonts.DefaultFont));
}
[Theory]
[BoolData]
public void DrawListViewColumnHeaderEventArgs_DrawDefault_Set_GetReturnsExpected(bool value)
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
DrawListViewColumnHeaderEventArgs e = new(graphics, new Rectangle(1, 2, 3, 4), -1, new ColumnHeader(), ListViewItemStates.Checked, Color.Red, Color.Blue, SystemFonts.DefaultFont)
{
DrawDefault = value
};
Assert.Equal(value, e.DrawDefault);
// Set same.
e.DrawDefault = value;
Assert.Equal(value, e.DrawDefault);
// Set different.
e.DrawDefault = !value;
Assert.Equal(!value, e.DrawDefault);
}
public static IEnumerable<object[]> Draw_TestData()
{
yield return new object[] { new Rectangle(1, 2, 3, 4), new ColumnHeader(), ListViewItemStates.Default, Color.Red, Color.Blue, SystemFonts.DefaultFont };
yield return new object[] { new Rectangle(1, 2, 3, 4), new ColumnHeader(), ListViewItemStates.Default, Color.Red, Color.Blue, SystemFonts.DefaultFont };
yield return new object[] { new Rectangle(1, 2, 3, 4), new ColumnHeader(), ListViewItemStates.Default, Color.Red, Color.Blue, SystemFonts.DefaultFont };
}
[Theory]
[MemberData(nameof(Draw_TestData))]
public void DrawListViewColumnHeaderEventArgs_DrawBackground_Invoke_Success(Rectangle bounds, ColumnHeader header, ListViewItemStates state, Color foreColor, Color backColor, Font font)
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
DrawListViewColumnHeaderEventArgs e = new(graphics, bounds, -1, header, state, foreColor, backColor, font);
e.DrawBackground();
}
[Theory]
[InlineData(HorizontalAlignment.Left)]
[InlineData(HorizontalAlignment.Center)]
[InlineData(HorizontalAlignment.Right)]
public void DrawListViewColumnHeaderEventArgs_DrawText_Invoke_Success(HorizontalAlignment textAlign)
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
ColumnHeader header = new() { TextAlign = textAlign };
DrawListViewColumnHeaderEventArgs e = new(graphics, new Rectangle(1, 2, 3, 4), -1, header, ListViewItemStates.Checked, Color.Red, Color.Blue, SystemFonts.DefaultFont);
e.DrawText();
}
[Fact]
public void DrawListViewColumnHeaderEventArgs_DrawText_InvokeTextFormatFlags_Success()
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
DrawListViewColumnHeaderEventArgs e = new(graphics, new Rectangle(1, 2, 3, 4), -1, new ColumnHeader(), ListViewItemStates.Checked, Color.Red, Color.Blue, SystemFonts.DefaultFont);
e.DrawText(TextFormatFlags.Bottom);
}
public static IEnumerable<object[]> NullHeader_TestData()
{
yield return new object[] { new Rectangle(-1, -2, -3, -4), 0, ListViewItemStates.Default, Color.Empty, Color.Empty, null };
yield return new object[] { new Rectangle(1, 2, 3, 4), -1, ListViewItemStates.Checked, Color.Red, Color.Blue, SystemFonts.DefaultFont };
}
[Theory]
[MemberData(nameof(NullHeader_TestData))]
public void DrawListViewColumnHeaderEventArgs_DrawText_NullHeader_Success(Rectangle bounds, int columnIndex, ListViewItemStates state, Color foreColor, Color backColor, Font font)
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
DrawListViewColumnHeaderEventArgs e = new(graphics, bounds, columnIndex, null, state, foreColor, backColor, font);
e.DrawText();
e.DrawText(TextFormatFlags.Left);
}
}
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