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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;
public class DataGridViewRowPrePaintEventArgsTests
{
public static IEnumerable<object[]> Ctor_DataGridView_Graphics_Rectangle_Rectangle_Int_DataGridViewElementStates_String_DataGridViewCellStyle_Bool_Bool_TestData()
{
Bitmap image = new(10, 10);
Graphics graphics = Graphics.FromImage(image);
yield return new object[] { new DataGridView(), graphics, Rectangle.Empty, Rectangle.Empty, -2, DataGridViewElementStates.Displayed, null, new DataGridViewCellStyle(), false, false };
yield return new object[] { new DataGridView(), graphics, new Rectangle(-1, -2, -3, -4), new Rectangle(-1, -2, -3, -4), -1, DataGridViewElementStates.Displayed, "", new DataGridViewCellStyle(), true, false };
yield return new object[] { new DataGridView(), graphics, new Rectangle(1, 2, 3, 4), new Rectangle(2, 3, 4, 5), 0, (DataGridViewElementStates)7, "errorText", new DataGridViewCellStyle(), true, true };
}
[WinFormsTheory]
[MemberData(nameof(Ctor_DataGridView_Graphics_Rectangle_Rectangle_Int_DataGridViewElementStates_String_DataGridViewCellStyle_Bool_Bool_TestData))]
public void Ctor_DataGridView_Graphics_Rectangle_Rectangle_Int_DataGridViewElementStates_String_DataGridViewCellStyle_Bool_Bool(DataGridView dataGridView, Graphics graphics, Rectangle clipBounds, Rectangle rowBounds, int rowIndex, DataGridViewElementStates rowState, string errorText, DataGridViewCellStyle inheritedRowStyle, bool isFirstDisplayedRow, bool isLastVisibleRow)
{
DataGridViewRowPrePaintEventArgs e = new(dataGridView, graphics, clipBounds, rowBounds, rowIndex, rowState, errorText, inheritedRowStyle, isFirstDisplayedRow, isLastVisibleRow);
Assert.Equal(graphics, e.Graphics);
Assert.Equal(clipBounds, e.ClipBounds);
Assert.Equal(rowBounds, e.RowBounds);
Assert.Equal(rowIndex, e.RowIndex);
Assert.Equal(rowState, e.State);
Assert.Equal(errorText, e.ErrorText);
Assert.Equal(inheritedRowStyle, e.InheritedRowStyle);
Assert.Equal(isFirstDisplayedRow, e.IsFirstDisplayedRow);
Assert.Equal(isLastVisibleRow, e.IsLastVisibleRow);
Assert.False(e.Handled);
Assert.Equal(DataGridViewPaintParts.All, e.PaintParts);
}
[WinFormsFact]
public void Ctor_NullDataGridView_ThrowsArgumentNullException()
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
Assert.Throws<ArgumentNullException>("dataGridView", () => new DataGridViewRowPrePaintEventArgs(null, graphics, Rectangle.Empty, Rectangle.Empty, -2, DataGridViewElementStates.Displayed, null, new DataGridViewCellStyle(), false, false));
}
[WinFormsFact]
public void Ctor_NullGraphics_ThrowsArgumentNullException()
{
using DataGridView dataGridView = new();
Assert.Throws<ArgumentNullException>("graphics", () => new DataGridViewRowPrePaintEventArgs(dataGridView, null, Rectangle.Empty, Rectangle.Empty, -2, DataGridViewElementStates.Displayed, null, new DataGridViewCellStyle(), false, false));
}
[WinFormsFact]
public void Ctor_NullInheritedRowStyle_ThrowsArgumentNullException()
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using DataGridView dataGridView = new();
Assert.Throws<ArgumentNullException>("inheritedRowStyle", () => new DataGridViewRowPrePaintEventArgs(dataGridView, graphics, Rectangle.Empty, Rectangle.Empty, -2, DataGridViewElementStates.Displayed, null, null, false, false));
}
public static IEnumerable<object[]> ClipBounds_TestData()
{
yield return new object[] { Rectangle.Empty };
yield return new object[] { new Rectangle(1, 2, 3, 4) };
yield return new object[] { new Rectangle(-1, -2, -3, -4) };
}
[WinFormsTheory]
[MemberData(nameof(ClipBounds_TestData))]
public void ClipBounds_Set_GetReturnsExpected(Rectangle value)
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using DataGridView dataGridView = new();
DataGridViewRowPrePaintEventArgs e = new(dataGridView, graphics, Rectangle.Empty, Rectangle.Empty, -2, DataGridViewElementStates.Displayed, null, new DataGridViewCellStyle(), false, false)
{
ClipBounds = value
};
Assert.Equal(value, e.ClipBounds);
}
[WinFormsTheory]
[InlineData(DataGridViewPaintParts.None)]
[InlineData(DataGridViewPaintParts.All)]
public void PaintParts_Set_GetReturnsExpected(DataGridViewPaintParts value)
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using DataGridView dataGridView = new();
DataGridViewRowPrePaintEventArgs e = new(dataGridView, graphics, Rectangle.Empty, Rectangle.Empty, -2, DataGridViewElementStates.Displayed, null, new DataGridViewCellStyle(), false, false)
{
PaintParts = value
};
Assert.Equal(value, e.PaintParts);
}
[WinFormsTheory]
[InlineData((DataGridViewPaintParts.All + 1))]
public void PaintParts_SetInvalidValue_ThrowsArgumentException(DataGridViewPaintParts value)
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using DataGridView dataGridView = new();
DataGridViewRowPrePaintEventArgs e = new(dataGridView, graphics, Rectangle.Empty, Rectangle.Empty, -2, DataGridViewElementStates.Displayed, null, new DataGridViewCellStyle(), false, false);
Assert.Throws<ArgumentException>("value", () => e.PaintParts = value);
}
[WinFormsFact]
public void DrawFocus_ValidRowIndex_Success()
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using DataGridView dataGridView = new();
dataGridView.Columns.Add("name", "text");
DataGridViewRowPrePaintEventArgs e = new(dataGridView, graphics, Rectangle.Empty, Rectangle.Empty, 0, DataGridViewElementStates.Displayed, null, new DataGridViewCellStyle(), false, false);
e.DrawFocus(new Rectangle(1, 2, 3, 4), true);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(1)]
public void DrawFocus_InvalidRowIndex_ThrowsInvalidOperationException(int rowIndex)
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using DataGridView dataGridView = new();
dataGridView.Columns.Add("name", "text");
DataGridViewRowPrePaintEventArgs e = new(dataGridView, graphics, Rectangle.Empty, Rectangle.Empty, rowIndex, DataGridViewElementStates.Displayed, null, new DataGridViewCellStyle(), false, false);
Assert.Throws<InvalidOperationException>(() => e.DrawFocus(new Rectangle(1, 2, 3, 4), true));
}
[WinFormsFact]
public void PaintCells_ValidRowIndex_Success()
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using DataGridView dataGridView = new();
dataGridView.Columns.Add("name", "text");
DataGridViewRowPrePaintEventArgs e = new(dataGridView, graphics, Rectangle.Empty, Rectangle.Empty, 0, DataGridViewElementStates.Displayed, null, new DataGridViewCellStyle(), false, false);
e.PaintCells(new Rectangle(1, 2, 3, 4), DataGridViewPaintParts.None);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(1)]
public void PaintCells_InvalidRowIndex_ThrowsInvalidOperationException(int rowIndex)
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using DataGridView dataGridView = new();
dataGridView.Columns.Add("name", "text");
DataGridViewRowPrePaintEventArgs e = new(dataGridView, graphics, Rectangle.Empty, Rectangle.Empty, rowIndex, DataGridViewElementStates.Displayed, null, new DataGridViewCellStyle(), false, false);
Assert.Throws<InvalidOperationException>(() => e.PaintCells(new Rectangle(1, 2, 3, 4), DataGridViewPaintParts.None));
}
[WinFormsFact]
public void PaintCellsBackground_ValidRowIndex_Success()
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using DataGridView dataGridView = new();
dataGridView.Columns.Add("name", "text");
DataGridViewRowPrePaintEventArgs e = new(dataGridView, graphics, Rectangle.Empty, Rectangle.Empty, 0, DataGridViewElementStates.Displayed, null, new DataGridViewCellStyle(), false, false);
e.PaintCellsBackground(new Rectangle(1, 2, 3, 4), true);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(1)]
public void PaintCellsBackground_InvalidRowIndex_ThrowsInvalidOperationException(int rowIndex)
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using DataGridView dataGridView = new();
dataGridView.Columns.Add("name", "text");
DataGridViewRowPrePaintEventArgs e = new(dataGridView, graphics, Rectangle.Empty, Rectangle.Empty, rowIndex, DataGridViewElementStates.Displayed, null, new DataGridViewCellStyle(), false, false);
Assert.Throws<InvalidOperationException>(() => e.PaintCellsBackground(new Rectangle(1, 2, 3, 4), true));
}
[WinFormsFact]
public void PaintCellsContent_ValidRowIndex_Success()
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using DataGridView dataGridView = new();
dataGridView.Columns.Add("name", "text");
DataGridViewRowPrePaintEventArgs e = new(dataGridView, graphics, Rectangle.Empty, Rectangle.Empty, 0, DataGridViewElementStates.Displayed, null, new DataGridViewCellStyle(), false, false);
e.PaintCellsContent(new Rectangle(1, 2, 3, 4));
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(1)]
public void PaintCellsContent_InvalidRowIndex_ThrowsInvalidOperationException(int rowIndex)
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using DataGridView dataGridView = new();
dataGridView.Columns.Add("name", "text");
DataGridViewRowPrePaintEventArgs e = new(dataGridView, graphics, Rectangle.Empty, Rectangle.Empty, rowIndex, DataGridViewElementStates.Displayed, null, new DataGridViewCellStyle(), false, false);
Assert.Throws<InvalidOperationException>(() => e.PaintCellsContent(new Rectangle(1, 2, 3, 4)));
}
[WinFormsFact]
public void PaintHeader_ValidRowIndexDataGridViewPaintParts_Success()
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using DataGridView dataGridView = new();
dataGridView.Columns.Add("name", "text");
DataGridViewRowPrePaintEventArgs e = new(dataGridView, graphics, Rectangle.Empty, Rectangle.Empty, 0, DataGridViewElementStates.Displayed, null, new DataGridViewCellStyle(), false, false);
e.PaintHeader(DataGridViewPaintParts.None);
}
[WinFormsTheory]
[InlineData(true)]
[InlineData(false)]
public void PaintHeader_ValidRowIndexBool_Success(bool paintSelectionBackground)
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using DataGridView dataGridView = new();
dataGridView.Columns.Add("name", "text");
DataGridViewRowPrePaintEventArgs e = new(dataGridView, graphics, Rectangle.Empty, Rectangle.Empty, 0, DataGridViewElementStates.Displayed, null, new DataGridViewCellStyle(), false, false);
e.PaintHeader(paintSelectionBackground);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(1)]
public void PaintHeader_InvalidRowIndex_ThrowsInvalidOperationException(int rowIndex)
{
using Bitmap image = new(10, 10);
using Graphics graphics = Graphics.FromImage(image);
using DataGridView dataGridView = new();
dataGridView.Columns.Add("name", "text");
DataGridViewRowPrePaintEventArgs e = new(dataGridView, graphics, Rectangle.Empty, Rectangle.Empty, rowIndex, DataGridViewElementStates.Displayed, null, new DataGridViewCellStyle(), false, false);
Assert.Throws<InvalidOperationException>(() => e.PaintHeader(DataGridViewPaintParts.None));
Assert.Throws<InvalidOperationException>(() => e.PaintHeader(true));
}
}
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