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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.Windows.Forms;
namespace Microsoft.VisualBasic.Devices.Tests;
public class MouseTests
{
public static bool NoMousePresent => !SystemInformation.MousePresent;
public static bool NoMouseWheelPresent => NoMousePresent || !SystemInformation.MouseWheelPresent;
[ConditionalFact(typeof(SystemInformation), nameof(SystemInformation.MousePresent))]
public void Mouse_ButtonsSwapped_Get_ReturnsExpected()
{
Mouse mouse = new();
Assert.Equal(SystemInformation.MouseButtonsSwapped, mouse.ButtonsSwapped);
Assert.Equal(mouse.ButtonsSwapped, mouse.ButtonsSwapped);
}
[ConditionalFact(nameof(NoMousePresent))]
public void Mouse_ButtonsSwapped_GetNoMousePresent_ThrowsInvalidOperationException()
{
if (NoMousePresent)
{
Mouse mouse = new();
Assert.Throws<InvalidOperationException>(() => mouse.ButtonsSwapped);
}
}
[ConditionalFact(typeof(SystemInformation), nameof(SystemInformation.MousePresent))]
public void Mouse_WheelExists_Get_ReturnsExpected()
{
Mouse mouse = new();
Assert.Equal(SystemInformation.MouseWheelPresent, mouse.WheelExists);
Assert.Equal(mouse.WheelExists, mouse.WheelExists);
}
[ConditionalFact(nameof(NoMousePresent))]
public void Mouse_WheelExists_GetNoMousePresent_ThrowsInvalidOperationException()
{
if (NoMousePresent)
{
Mouse mouse = new();
Assert.Throws<InvalidOperationException>(() => mouse.WheelExists);
}
}
[ConditionalFact(typeof(SystemInformation), nameof(SystemInformation.MousePresent), nameof(SystemInformation.MouseWheelPresent))]
public void Mouse_WheelScrollLines_Get_ReturnsExpected()
{
if (SystemInformation.MouseWheelPresent)
{
Mouse mouse = new();
Assert.Equal(SystemInformation.MouseWheelScrollLines, mouse.WheelScrollLines);
Assert.Equal(mouse.WheelScrollLines, mouse.WheelScrollLines);
}
}
[ConditionalFact(nameof(NoMouseWheelPresent))]
public void Mouse_WheelScrollLines_GetNoMouseWheelPresent_ThrowsInvalidOperationException()
{
if (NoMouseWheelPresent)
{
Mouse mouse = new();
Assert.Throws<InvalidOperationException>(() => mouse.WheelScrollLines);
}
}
}
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