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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.ComponentModel;
using Moq;
namespace System.Windows.Forms.Tests;
// NB: doesn't require thread affinity
public class SpecialFolderEnumConverterTests
{
[Fact]
public void SpecialFolderEnumConverter_ConvertFrom_String_Success()
{
PropertyDescriptor descriptor = TypeDescriptor.GetProperties(new FolderBrowserDialog()).Find(nameof(FolderBrowserDialog.RootFolder), ignoreCase: false);
TypeConverter converter = descriptor.Converter;
Assert.Equal(Environment.SpecialFolder.CommonDocuments, converter.ConvertFrom("CommonDocuments"));
}
[Fact]
public void SpecialFolderEnumConverter_GetStandardValues_Invoke_ReturnsExpected()
{
TypeConverter converter = GetNewSpecialFolderEnumConverter();
var expected = new Environment.SpecialFolder[]
{
Environment.SpecialFolder.AdminTools,
Environment.SpecialFolder.ApplicationData,
Environment.SpecialFolder.CDBurning,
Environment.SpecialFolder.CommonAdminTools,
Environment.SpecialFolder.CommonApplicationData,
Environment.SpecialFolder.CommonDesktopDirectory,
Environment.SpecialFolder.CommonDocuments,
Environment.SpecialFolder.CommonMusic,
Environment.SpecialFolder.CommonOemLinks,
Environment.SpecialFolder.CommonPictures,
Environment.SpecialFolder.CommonProgramFiles,
Environment.SpecialFolder.CommonProgramFilesX86,
Environment.SpecialFolder.CommonPrograms,
Environment.SpecialFolder.CommonStartMenu,
Environment.SpecialFolder.CommonStartup,
Environment.SpecialFolder.CommonTemplates,
Environment.SpecialFolder.CommonVideos,
Environment.SpecialFolder.Cookies,
Environment.SpecialFolder.Desktop,
Environment.SpecialFolder.DesktopDirectory,
Environment.SpecialFolder.Favorites,
Environment.SpecialFolder.Fonts,
Environment.SpecialFolder.History,
Environment.SpecialFolder.InternetCache,
Environment.SpecialFolder.LocalApplicationData,
Environment.SpecialFolder.LocalizedResources,
Environment.SpecialFolder.MyComputer,
Environment.SpecialFolder.MyDocuments,
Environment.SpecialFolder.MyMusic,
Environment.SpecialFolder.MyPictures,
Environment.SpecialFolder.MyVideos,
Environment.SpecialFolder.NetworkShortcuts,
Environment.SpecialFolder.PrinterShortcuts,
Environment.SpecialFolder.ProgramFiles,
Environment.SpecialFolder.ProgramFilesX86,
Environment.SpecialFolder.Programs,
Environment.SpecialFolder.Recent,
Environment.SpecialFolder.Resources,
Environment.SpecialFolder.SendTo,
Environment.SpecialFolder.StartMenu,
Environment.SpecialFolder.Startup,
Environment.SpecialFolder.System,
Environment.SpecialFolder.SystemX86,
Environment.SpecialFolder.Templates,
Environment.SpecialFolder.UserProfile,
Environment.SpecialFolder.Windows
};
Assert.Equal(expected, converter.GetStandardValues(null).Cast<Environment.SpecialFolder>());
converter = GetNewSpecialFolderEnumConverter();
Mock<TypeDescriptionProvider> mockProvider = new(MockBehavior.Strict);
mockProvider
.Setup(p => p.GetReflectionType(typeof(Environment.SpecialFolder), null))
.Returns(() => typeof(CustomReflectionType));
TypeDescriptor.AddProvider(mockProvider.Object, typeof(Environment.SpecialFolder));
Assert.Equal(new Environment.SpecialFolder[] { Environment.SpecialFolder.Personal }, converter.GetStandardValues(null).Cast<Environment.SpecialFolder>());
TypeDescriptor.RemoveProvider(mockProvider.Object, typeof(Environment.SpecialFolder));
}
[Fact]
public void SpecialFolderEnumConverter_GetStandardValues_NonSpecialFolderType_ReturnsExpected()
{
PropertyDescriptor descriptor = TypeDescriptor.GetProperties(new FolderBrowserDialog()).Find(nameof(FolderBrowserDialog.RootFolder), ignoreCase: false);
TypeConverter converter = (TypeConverter)Activator.CreateInstance(descriptor.Converter.GetType(), new Type[] { typeof(CustomEnum) });
Assert.Equal(new CustomEnum[] { CustomEnum.Value }, converter.GetStandardValues(null).Cast<CustomEnum>());
}
private TypeConverter GetNewSpecialFolderEnumConverter()
{
PropertyDescriptor descriptor = TypeDescriptor.GetProperties(new FolderBrowserDialog()).Find(nameof(FolderBrowserDialog.RootFolder), ignoreCase: false);
return (TypeConverter)Activator.CreateInstance(descriptor.Converter.GetType(), new Type[] { typeof(Environment.SpecialFolder) });
}
#pragma warning disable CA1052 // Static holder types should be Static or NotInheritable
private class CustomReflectionType
#pragma warning restore CA1052
{
#pragma warning disable CS0649
#pragma warning disable IDE1006 // Naming Styles
public static int Personal;
#pragma warning restore IDE1006
#pragma warning restore CS0649
}
private enum CustomEnum
{
Value
}
}
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