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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 Windows.Win32.UI.Controls.Dialogs;
namespace System.Windows.Forms.Tests;
public class FileDialogTests
{
[WinFormsFact]
public void FileDialog_Ctor_Default()
{
using SubFileDialog dialog = new();
Assert.True(dialog.AddExtension);
Assert.True(dialog.AddToRecent);
Assert.True(dialog.AutoUpgradeEnabled);
Assert.True(dialog.CanRaiseEvents);
Assert.False(dialog.CheckFileExists);
Assert.True(dialog.CheckPathExists);
Assert.Null(dialog.Container);
Assert.Empty(dialog.CustomPlaces);
Assert.Same(dialog.CustomPlaces, dialog.CustomPlaces);
Assert.False(dialog.DesignMode);
Assert.Empty(dialog.DefaultExt);
Assert.True(dialog.DereferenceLinks);
Assert.NotNull(dialog.Events);
Assert.Same(dialog.Events, dialog.Events);
Assert.Empty(dialog.FileName);
Assert.Empty(dialog.FileNames);
Assert.Same(dialog.FileNames, dialog.FileNames);
Assert.Equal(1, dialog.FilterIndex);
Assert.Empty(dialog.InitialDirectory);
Assert.NotEqual(IntPtr.Zero, dialog.Instance);
Assert.False(dialog.OkRequiresInteraction);
Assert.Equal(2052, dialog.Options);
Assert.False(dialog.RestoreDirectory);
Assert.False(dialog.ShowHelp);
Assert.False(dialog.ShowHiddenFiles);
Assert.False(dialog.SupportMultiDottedExtensions);
Assert.True(dialog.ShowPinnedPlaces);
Assert.Null(dialog.Site);
Assert.Null(dialog.Tag);
Assert.Empty(dialog.Title);
Assert.True(dialog.ValidateNames);
Assert.Null(dialog.ClientGuid);
}
[WinFormsFact]
public void FileDialog_Ctor_Default_OverriddenReset()
{
using EmptyResetFileDialog dialog = new();
Assert.False(dialog.AddExtension);
Assert.True(dialog.AddToRecent);
Assert.True(dialog.AutoUpgradeEnabled);
Assert.True(dialog.CanRaiseEvents);
Assert.False(dialog.CheckFileExists);
Assert.False(dialog.CheckPathExists);
Assert.Null(dialog.Container);
Assert.Empty(dialog.CustomPlaces);
Assert.Same(dialog.CustomPlaces, dialog.CustomPlaces);
Assert.False(dialog.DesignMode);
Assert.Empty(dialog.DefaultExt);
Assert.True(dialog.DereferenceLinks);
Assert.NotNull(dialog.Events);
Assert.Same(dialog.Events, dialog.Events);
Assert.Empty(dialog.FileName);
Assert.Empty(dialog.FileNames);
Assert.Same(dialog.FileNames, dialog.FileNames);
Assert.Equal(0, dialog.FilterIndex);
Assert.Empty(dialog.InitialDirectory);
Assert.NotEqual(IntPtr.Zero, dialog.Instance);
Assert.False(dialog.OkRequiresInteraction);
Assert.Equal(0, dialog.Options);
Assert.False(dialog.RestoreDirectory);
Assert.False(dialog.ShowHelp);
Assert.False(dialog.ShowHiddenFiles);
Assert.True(dialog.ShowPinnedPlaces);
Assert.False(dialog.SupportMultiDottedExtensions);
Assert.Null(dialog.Site);
Assert.Null(dialog.Tag);
Assert.Empty(dialog.Title);
Assert.True(dialog.ValidateNames);
Assert.Null(dialog.ClientGuid);
}
[WinFormsFact]
public void FileDialog_EventFileOk_Get_ReturnsExpected()
{
Assert.NotNull(SubFileDialog.EventFileOk);
Assert.Same(SubFileDialog.EventFileOk, SubFileDialog.EventFileOk);
}
[WinFormsTheory]
[BoolData]
public void FileDialog_AddExtension_Set_GetReturnsExpected(bool value)
{
using SubFileDialog dialog = new()
{
AddExtension = value
};
Assert.Equal(value, dialog.AddExtension);
Assert.Equal(2052, dialog.Options);
// Set same.
dialog.AddExtension = value;
Assert.Equal(value, dialog.AddExtension);
Assert.Equal(2052, dialog.Options);
// Set different.
dialog.AddExtension = !value;
Assert.Equal(!value, dialog.AddExtension);
Assert.Equal(2052, dialog.Options);
}
[WinFormsTheory]
[InlineData(true, 2052, 33556484)]
[InlineData(false, 33556484, 2052)]
public void FileDialog_AddToRecent_Set_GetReturnsExpected(bool value, int expectedOptions, int expectedOptionsAfter)
{
using SubFileDialog dialog = new()
{
AddToRecent = value
};
Assert.Equal(value, dialog.AddToRecent);
Assert.Equal(expectedOptions, dialog.Options);
// Set same.
dialog.AddToRecent = value;
Assert.Equal(value, dialog.AddToRecent);
Assert.Equal(expectedOptions, dialog.Options);
// Set different.
dialog.AddToRecent = !value;
Assert.Equal(!value, dialog.AddToRecent);
Assert.Equal(expectedOptionsAfter, dialog.Options);
}
[WinFormsTheory]
[BoolData]
public void FileDialog_AutoUpgradeEnabled_Set_GetReturnsExpected(bool value)
{
using SubFileDialog dialog = new()
{
AutoUpgradeEnabled = value
};
Assert.Equal(value, dialog.AutoUpgradeEnabled);
Assert.Equal(2052, dialog.Options);
// Set same.
dialog.AutoUpgradeEnabled = value;
Assert.Equal(value, dialog.AutoUpgradeEnabled);
Assert.Equal(2052, dialog.Options);
// Set different.
dialog.AutoUpgradeEnabled = !value;
Assert.Equal(!value, dialog.AutoUpgradeEnabled);
Assert.Equal(2052, dialog.Options);
}
[WinFormsTheory]
[BoolData]
public void FileDialog_CheckFileExists_Set_GetReturnsExpected(bool value)
{
using SubFileDialog dialog = new()
{
CheckFileExists = value
};
Assert.Equal(value, dialog.CheckFileExists);
Assert.Equal(2052, dialog.Options);
// Set same.
dialog.CheckFileExists = value;
Assert.Equal(value, dialog.CheckFileExists);
Assert.Equal(2052, dialog.Options);
// Set different.
dialog.CheckFileExists = !value;
Assert.Equal(!value, dialog.CheckFileExists);
Assert.Equal(2052, dialog.Options);
}
[WinFormsTheory]
[InlineData(true, 2052, 4)]
[InlineData(false, 4, 2052)]
public void FileDialog_CheckPathExists_Set_GetReturnsExpected(bool value, int expectedOptions, int expectedOptionsAfter)
{
using SubFileDialog dialog = new()
{
CheckPathExists = value
};
Assert.Equal(value, dialog.CheckPathExists);
Assert.Equal(expectedOptions, dialog.Options);
// Set same.
dialog.CheckPathExists = value;
Assert.Equal(value, dialog.CheckPathExists);
Assert.Equal(expectedOptions, dialog.Options);
// Set different.
dialog.CheckPathExists = !value;
Assert.Equal(!value, dialog.CheckPathExists);
Assert.Equal(expectedOptionsAfter, dialog.Options);
}
[WinFormsTheory]
[InlineData("00000000-0000-0000-0000-000000000000")]
[InlineData("1d5a0215-fa19-4e3b-8ab9-06da88c28ae7")]
public void FileDialog_ClientGuid_Set_GetReturnsExpected(Guid value)
{
using SubFileDialog dialog = new()
{
ClientGuid = value
};
Assert.Equal(value, dialog.ClientGuid);
// Set same.
dialog.ClientGuid = value;
Assert.Equal(value, dialog.ClientGuid);
}
[WinFormsTheory]
[InlineData(null, "")]
[InlineData(".", "")]
[InlineData(".ext", "ext")]
[InlineData("..ext", ".ext")]
[InlineData("ext", "ext")]
public void FileDialog_DefaultExt_Set_GetReturnsExpected(string value, string expected)
{
using SubFileDialog dialog = new()
{
DefaultExt = value
};
Assert.Equal(expected, dialog.DefaultExt);
Assert.Equal(2052, dialog.Options);
// Set same.
dialog.DefaultExt = value;
Assert.Equal(expected, dialog.DefaultExt);
Assert.Equal(2052, dialog.Options);
}
[WinFormsTheory]
[InlineData(true, 2052, 1050628)]
[InlineData(false, 1050628, 2052)]
public void FileDialog_DereferenceLinks_Set_GetReturnsExpected(bool value, int expectedOptions, int expectedOptionsAfter)
{
using SubFileDialog dialog = new()
{
DereferenceLinks = value
};
Assert.Equal(value, dialog.DereferenceLinks);
Assert.Equal(expectedOptions, dialog.Options);
// Set same.
dialog.DereferenceLinks = value;
Assert.Equal(value, dialog.DereferenceLinks);
Assert.Equal(expectedOptions, dialog.Options);
// Set different.
dialog.DereferenceLinks = !value;
Assert.Equal(!value, dialog.DereferenceLinks);
Assert.Equal(expectedOptionsAfter, dialog.Options);
}
[WinFormsTheory]
[InlineData(null, new string[0])]
[InlineData("", new string[] { "" })]
[InlineData("fileName", new string[] { "fileName" })]
public void FileDialog_FileName_Set_GetReturnsExpected(string value, string[] expectedFileNames)
{
using SubFileDialog dialog = new()
{
FileName = value
};
Assert.Equal(value ?? string.Empty, dialog.FileName);
Assert.Equal(expectedFileNames, dialog.FileNames);
if (expectedFileNames.Length > 0)
{
Assert.Equal(dialog.FileNames, dialog.FileNames);
Assert.NotSame(dialog.FileNames, dialog.FileNames);
}
else
{
Assert.Same(dialog.FileNames, dialog.FileNames);
}
Assert.Equal(2052, dialog.Options);
// Set same.
dialog.FileName = value;
Assert.Equal(value ?? string.Empty, dialog.FileName);
if (expectedFileNames.Length > 0)
{
Assert.Equal(dialog.FileNames, dialog.FileNames);
Assert.NotSame(dialog.FileNames, dialog.FileNames);
}
else
{
Assert.Same(dialog.FileNames, dialog.FileNames);
}
Assert.Equal(2052, dialog.Options);
}
[WinFormsTheory]
[InlineData(null)]
[InlineData("")]
[InlineData("filter|filter")]
[InlineData("filter|filter|filter|filter")]
public void FileDialog_Filter_Set_GetReturnsExpected(string value)
{
using SubFileDialog dialog = new()
{
Filter = value
};
Assert.Equal(value ?? string.Empty, dialog.Filter);
Assert.Equal(2052, dialog.Options);
// Set same.
dialog.Filter = value;
Assert.Equal(value ?? string.Empty, dialog.Filter);
Assert.Equal(2052, dialog.Options);
}
[WinFormsTheory]
[InlineData("filter")]
[InlineData("filter|filter|filter")]
public void FileDialog_Filter_SetInvalid_ThrowsArgumentException(string value)
{
using SubFileDialog dialog = new();
Assert.Throws<ArgumentException>("value", () => dialog.Filter = value);
}
[WinFormsTheory]
[IntegerData<int>]
public void FileDialog_FilterIndex_Set_GetReturnsExpected(int value)
{
using SubFileDialog dialog = new()
{
FilterIndex = value
};
Assert.Equal(value, dialog.FilterIndex);
Assert.Equal(2052, dialog.Options);
// Set same.
dialog.FilterIndex = value;
Assert.Equal(value, dialog.FilterIndex);
Assert.Equal(2052, dialog.Options);
}
[WinFormsTheory]
[IntegerData<int>]
public void FileDialog_InitialDirectory_Set_GetReturnsExpected(string value)
{
using SubFileDialog dialog = new()
{
InitialDirectory = value
};
Assert.Equal(value ?? string.Empty, dialog.InitialDirectory);
Assert.Equal(2052, dialog.Options);
// Set same.
dialog.InitialDirectory = value;
Assert.Equal(value ?? string.Empty, dialog.InitialDirectory);
Assert.Equal(2052, dialog.Options);
}
[WinFormsTheory]
[InlineData(true, 2099204, 2052)]
[InlineData(false, 2052, 2099204)]
public void FileDialog_OkRequiresInteraction_Set_GetReturnsExpected(bool value, int expectedOptions, int expectedOptionsAfter)
{
using SubFileDialog dialog = new()
{
OkRequiresInteraction = value
};
Assert.Equal(value, dialog.OkRequiresInteraction);
Assert.Equal(expectedOptions, dialog.Options);
// Set same.
dialog.OkRequiresInteraction = value;
Assert.Equal(value, dialog.OkRequiresInteraction);
Assert.Equal(expectedOptions, dialog.Options);
// Set different.
dialog.OkRequiresInteraction = !value;
Assert.Equal(!value, dialog.OkRequiresInteraction);
Assert.Equal(expectedOptionsAfter, dialog.Options);
}
[WinFormsTheory]
[InlineData(true, 2060, 2052)]
[InlineData(false, 2052, 2060)]
public void FileDialog_RestoreDirectory_Set_GetReturnsExpected(bool value, int expectedOptions, int expectedOptionsAfter)
{
using SubFileDialog dialog = new()
{
RestoreDirectory = value
};
Assert.Equal(value, dialog.RestoreDirectory);
Assert.Equal(expectedOptions, dialog.Options);
// Set same.
dialog.RestoreDirectory = value;
Assert.Equal(value, dialog.RestoreDirectory);
Assert.Equal(expectedOptions, dialog.Options);
// Set different.
dialog.RestoreDirectory = !value;
Assert.Equal(!value, dialog.RestoreDirectory);
Assert.Equal(expectedOptionsAfter, dialog.Options);
}
[WinFormsTheory]
[InlineData(true, 2068, 2052)]
[InlineData(false, 2052, 2068)]
public void FileDialog_ShowHelp_Set_GetReturnsExpected(bool value, int expectedOptions, int expectedOptionsAfter)
{
using SubFileDialog dialog = new()
{
ShowHelp = value
};
Assert.Equal(value, dialog.ShowHelp);
Assert.Equal(expectedOptions, dialog.Options);
// Set same.
dialog.ShowHelp = value;
Assert.Equal(value, dialog.ShowHelp);
Assert.Equal(expectedOptions, dialog.Options);
// Set different.
dialog.ShowHelp = !value;
Assert.Equal(!value, dialog.ShowHelp);
Assert.Equal(expectedOptionsAfter, dialog.Options);
}
[WinFormsTheory]
[InlineData(true, 268437508, 2052)]
[InlineData(false, 2052, 268437508)]
public void FileDialog_ShowHiddenFiles_Set_GetReturnsExpected(bool value, int expectedOptions, int expectedOptionsAfter)
{
using SubFileDialog dialog = new()
{
ShowHiddenFiles = value
};
Assert.Equal(value, dialog.ShowHiddenFiles);
Assert.Equal(expectedOptions, dialog.Options);
// Set same.
dialog.ShowHiddenFiles = value;
Assert.Equal(value, dialog.ShowHiddenFiles);
Assert.Equal(expectedOptions, dialog.Options);
// Set different.
dialog.ShowHiddenFiles = !value;
Assert.Equal(!value, dialog.ShowHiddenFiles);
Assert.Equal(expectedOptionsAfter, dialog.Options);
}
[WinFormsTheory]
[InlineData(true, 2052, 264196)]
[InlineData(false, 264196, 2052)]
public void FileDialog_ShowPinnedPlaces_Set_GetReturnsExpected(bool value, int expectedOptions, int expectedOptionsAfter)
{
using SubFileDialog dialog = new()
{
ShowPinnedPlaces = value
};
Assert.Equal(value, dialog.ShowPinnedPlaces);
Assert.Equal(expectedOptions, dialog.Options);
// Set same.
dialog.ShowPinnedPlaces = value;
Assert.Equal(value, dialog.ShowPinnedPlaces);
Assert.Equal(expectedOptions, dialog.Options);
// Set different.
dialog.ShowPinnedPlaces = !value;
Assert.Equal(!value, dialog.ShowPinnedPlaces);
Assert.Equal(expectedOptionsAfter, dialog.Options);
}
[WinFormsTheory]
[BoolData]
public void FileDialog_SupportMultiDottedExtensions_Set_GetReturnsExpected(bool value)
{
using SubFileDialog dialog = new()
{
SupportMultiDottedExtensions = value
};
Assert.Equal(value, dialog.SupportMultiDottedExtensions);
Assert.Equal(2052, dialog.Options);
// Set same.
dialog.SupportMultiDottedExtensions = value;
Assert.Equal(value, dialog.SupportMultiDottedExtensions);
Assert.Equal(2052, dialog.Options);
// Set different.
dialog.SupportMultiDottedExtensions = !value;
Assert.Equal(!value, dialog.SupportMultiDottedExtensions);
Assert.Equal(2052, dialog.Options);
}
[WinFormsTheory]
[StringWithNullData]
public void FileDialog_Title_Set_GetReturnsExpected(string value)
{
using SubFileDialog dialog = new()
{
Title = value
};
Assert.Equal(value ?? string.Empty, dialog.Title);
Assert.Equal(2052, dialog.Options);
// Set same.
dialog.Title = value;
Assert.Equal(value ?? string.Empty, dialog.Title);
Assert.Equal(2052, dialog.Options);
}
[WinFormsTheory]
[InlineData(true, 2052, 2308)]
[InlineData(false, 2308, 2052)]
public void FileDialog_ValidateNames_Set_GetReturnsExpected(bool value, int expectedOptions, int expectedOptionsAfter)
{
using SubFileDialog dialog = new()
{
ValidateNames = value
};
Assert.Equal(value, dialog.ValidateNames);
Assert.Equal(expectedOptions, dialog.Options);
// Set same.
dialog.ValidateNames = value;
Assert.Equal(value, dialog.ValidateNames);
Assert.Equal(expectedOptions, dialog.Options);
// Set different.
dialog.ValidateNames = !value;
Assert.Equal(!value, dialog.ValidateNames);
Assert.Equal(expectedOptionsAfter, dialog.Options);
}
public static IEnumerable<object[]> CancelEventArgs_TestData()
{
yield return new object[] { null };
yield return new object[] { new CancelEventArgs() };
}
[WinFormsTheory]
[MemberData(nameof(CancelEventArgs_TestData))]
public void FileDialog_OnFileOk_Invoke_Success(CancelEventArgs eventArgs)
{
using SubFileDialog dialog = new();
// No handler.
dialog.OnFileOk(eventArgs);
// Handler.
int callCount = 0;
CancelEventHandler handler = (sender, e) =>
{
Assert.Same(dialog, sender);
Assert.Same(eventArgs, e);
callCount++;
};
dialog.FileOk += handler;
dialog.OnFileOk(eventArgs);
Assert.Equal(1, callCount);
// Should not call if the handler is removed.
dialog.FileOk -= handler;
dialog.OnFileOk(eventArgs);
Assert.Equal(1, callCount);
}
[WinFormsFact]
public void FileDialog_Reset_Invoke_Success()
{
using SubFileDialog dialog = new()
{
AddExtension = false,
AddToRecent = false,
AutoUpgradeEnabled = false,
CheckFileExists = true,
CheckPathExists = false,
ClientGuid = new Guid("ad6e2857-4659-4791-aa59-efffa61d4594"),
DefaultExt = "DefaultExt",
DereferenceLinks = false,
FileName = "FileName",
FilterIndex = 2,
InitialDirectory = "InitialDirectory",
OkRequiresInteraction = true,
RestoreDirectory = true,
ShowHelp = true,
ShowHiddenFiles = true,
ShowPinnedPlaces = false,
SupportMultiDottedExtensions = true,
Tag = "Tag",
Title = "Title",
ValidateNames = false
};
dialog.CustomPlaces.Add("path");
dialog.Reset();
Assert.True(dialog.AddExtension);
Assert.True(dialog.AddToRecent);
Assert.False(dialog.AutoUpgradeEnabled);
Assert.True(dialog.CanRaiseEvents);
Assert.False(dialog.CheckFileExists);
Assert.True(dialog.CheckPathExists);
Assert.Null(dialog.Container);
Assert.Empty(dialog.CustomPlaces);
Assert.Same(dialog.CustomPlaces, dialog.CustomPlaces);
Assert.False(dialog.DesignMode);
Assert.Empty(dialog.DefaultExt);
Assert.True(dialog.DereferenceLinks);
Assert.NotNull(dialog.Events);
Assert.Same(dialog.Events, dialog.Events);
Assert.Empty(dialog.FileName);
Assert.Empty(dialog.FileNames);
Assert.Same(dialog.FileNames, dialog.FileNames);
Assert.Equal(1, dialog.FilterIndex);
Assert.Empty(dialog.InitialDirectory);
Assert.NotEqual(IntPtr.Zero, dialog.Instance);
Assert.False(dialog.OkRequiresInteraction);
Assert.Equal(2052, dialog.Options);
Assert.False(dialog.RestoreDirectory);
Assert.False(dialog.ShowHelp);
Assert.False(dialog.ShowHiddenFiles);
Assert.True(dialog.ShowPinnedPlaces);
Assert.False(dialog.SupportMultiDottedExtensions);
Assert.Null(dialog.Site);
Assert.Equal("Tag", dialog.Tag);
Assert.Empty(dialog.Title);
Assert.True(dialog.ValidateNames);
Assert.Null(dialog.ClientGuid);
}
[WinFormsTheory]
[BoolData]
public unsafe void FileDialog_RunDialog_NonVista_Success(bool result)
{
using SubFileDialog dialog = new()
{
AutoUpgradeEnabled = false
};
dialog.RunFileDialogAction = o =>
{
Assert.Equal(sizeof(OPENFILENAME), (int)o.lStructSize);
Assert.Equal((HWND)1, o.hwndOwner);
Assert.Equal(dialog.Instance, o.hInstance);
ReadOnlySpan<char> filter = new(o.lpstrFilter.Value, o.lpstrFilter.StringListLength);
Assert.True(filter.SequenceEqual(" \0*.*"));
Assert.True(o.lpstrCustomFilter.IsNull);
Assert.Equal(0u, o.nMaxCustFilter);
Assert.Equal(1u, o.nFilterIndex);
Assert.False(o.lpstrFile.IsNull);
Assert.Equal(8192u, o.nMaxFile);
Assert.True(o.lpstrFileTitle.IsNull);
Assert.Equal(0u, o.nMaxFileTitle);
Assert.True(o.lpstrInitialDir.IsNull);
Assert.True(o.lpstrTitle.IsNull);
Assert.Equal((OPEN_FILENAME_FLAGS)8914980, o.Flags);
Assert.Equal(0, o.nFileOffset);
Assert.Equal(0, o.nFileExtension);
Assert.True(o.lpstrDefExt.IsNull);
Assert.Equal((LPARAM)0, o.lCustData);
Assert.False(o.lpfnHook is null);
Assert.True(o.lpTemplateName.IsNull);
Assert.True(o.pvReserved is null);
Assert.Equal(0u, o.dwReserved);
Assert.Equal((OPEN_FILENAME_FLAGS_EX)0, o.FlagsEx);
return result;
};
Assert.Equal(result, dialog.RunDialog(1));
}
[WinFormsTheory]
[BoolData]
public unsafe void FileDialog_RunDialog_NonVistaAdvanced_Success(bool result)
{
using SubFileDialog dialog = new()
{
AddExtension = result,
AddToRecent = false,
AutoUpgradeEnabled = false,
CheckFileExists = true,
CheckPathExists = false,
DefaultExt = "DefaultExt",
DereferenceLinks = false,
FileName = "FileName",
FilterIndex = 2,
InitialDirectory = "InitialDirectory",
OkRequiresInteraction = true,
RestoreDirectory = true,
ShowHelp = true,
ShowHiddenFiles = true,
ShowPinnedPlaces = false,
SupportMultiDottedExtensions = true,
Tag = "Tag",
Title = "Title",
ValidateNames = false
};
dialog.RunFileDialogAction = o =>
{
Assert.Equal(sizeof(OPENFILENAME), (int)o.lStructSize);
Assert.Equal((IntPtr)1, o.hwndOwner);
Assert.Equal(dialog.Instance, o.hInstance);
Assert.True(o.lpstrFilter.IsNull);
Assert.True(o.lpstrCustomFilter.IsNull);
Assert.Equal(0u, o.nMaxCustFilter);
Assert.Equal(2u, o.nFilterIndex);
Assert.False(o.lpstrFile.IsNull);
Assert.Equal(8192u, o.nMaxFile);
Assert.True(o.lpstrFileTitle.IsNull);
Assert.Equal(0u, o.nMaxFileTitle);
Assert.Equal("InitialDirectory", o.lpstrInitialDir.ToString());
Assert.Equal("Title", o.lpstrTitle.ToString());
Assert.Equal((OPEN_FILENAME_FLAGS)314310972, o.Flags);
Assert.Equal(0u, o.nFileOffset);
Assert.Equal(0u, o.nFileExtension);
Assert.Equal(result ? "DefaultExt" : null, o.lpstrDefExt.ToString());
Assert.Equal((LPARAM)0, o.lCustData);
Assert.False(o.lpfnHook is null);
Assert.True(o.lpTemplateName.IsNull);
Assert.True(o.pvReserved is null);
Assert.Equal(0u, o.dwReserved);
Assert.Equal((OPEN_FILENAME_FLAGS_EX)0, o.FlagsEx);
return result;
};
Assert.Equal(result, dialog.RunDialog(1));
}
[WinFormsTheory]
[BoolData]
public unsafe void FileDialog_RunDialog_ShowHelp_Success(bool result)
{
using SubFileDialog dialog = new()
{
ShowHelp = true
};
dialog.RunFileDialogAction = o =>
{
Assert.Equal(sizeof(OPENFILENAME), (int)o.lStructSize);
Assert.Equal((HWND)1, o.hwndOwner);
Assert.Equal(dialog.Instance, o.hInstance);
ReadOnlySpan<char> filter = new(o.lpstrFilter.Value, o.lpstrFilter.StringListLength);
Assert.True(filter.SequenceEqual(" \0*.*"));
Assert.True(o.lpstrCustomFilter.IsNull);
Assert.Equal(0u, o.nMaxCustFilter);
Assert.Equal(1u, o.nFilterIndex);
Assert.False(o.lpstrFile.IsNull);
Assert.Equal(8192u, o.nMaxFile);
Assert.True(o.lpstrFileTitle.IsNull);
Assert.Equal(0u, o.nMaxFileTitle);
Assert.True(o.lpstrInitialDir.IsNull);
Assert.True(o.lpstrTitle.IsNull);
Assert.Equal((OPEN_FILENAME_FLAGS)8914996, o.Flags);
Assert.Equal(0u, o.nFileOffset);
Assert.Equal(0u, o.nFileExtension);
Assert.True(o.lpstrDefExt.IsNull);
Assert.Equal((LPARAM)0, o.lCustData);
Assert.False(o.lpfnHook is null);
Assert.True(o.lpTemplateName.IsNull);
Assert.True(o.pvReserved is null);
Assert.Equal(0u, o.dwReserved);
Assert.Equal((OPEN_FILENAME_FLAGS_EX)0, o.FlagsEx);
return result;
};
Assert.Equal(result, dialog.RunDialog(1));
}
public static IEnumerable<object[]> ToString_TestData()
{
yield return new object[] { new SubFileDialog(), "System.Windows.Forms.Tests.FileDialogTests+SubFileDialog: Title: , FileName: " };
yield return new object[] { new SubFileDialog { Title = "Title", FileName = "FileName" }, "System.Windows.Forms.Tests.FileDialogTests+SubFileDialog: Title: Title, FileName: FileName" };
}
[WinFormsTheory]
[MemberData(nameof(ToString_TestData))]
public void FileDialog_ToString_Invoke_ReturnsExpected(FileDialog dialog, string expected)
{
Assert.Equal(expected, dialog.ToString());
}
[WinFormsFact]
public void FileDialog_GetMultiselectFiles_ReturnsExpected()
{
// Test with directory
var accessor = typeof(FileDialog).TestAccessor();
string buffer = "C:\\test\0testfile.txt\0testfile2.txt\0";
string[] expected = ["C:\\test\\testfile.txt", "C:\\test\\testfile2.txt"];
string[] result = accessor.CreateDelegate<GetMultiselectFiles>()(buffer);
Assert.Equal(expected, result);
// Test without directory
buffer = "C:\\\0testfile.txt\0testfile2.txt\0";
expected = ["C:\\testfile.txt", "C:\\testfile2.txt"];
result = accessor.CreateDelegate<GetMultiselectFiles>()(buffer);
Assert.Equal(expected, result);
// Test single file with directory
buffer = "C:\\test\\testfile.txt\0";
expected = ["C:\\test\\testfile.txt"];
result = accessor.CreateDelegate<GetMultiselectFiles>()(buffer);
Assert.Equal(expected, result);
// Test single file without directory
buffer = "C:\\testfile.txt\0";
expected = ["C:\\testfile.txt"];
result = accessor.CreateDelegate<GetMultiselectFiles>()(buffer);
Assert.Equal(expected, result);
}
private delegate string[] GetMultiselectFiles(ReadOnlySpan<char> fileBuffer);
private unsafe class SubFileDialog : FileDialog
{
#pragma warning disable IDE1006 // Naming Styles
public static new readonly object EventFileOk = FileDialog.EventFileOk;
#pragma warning restore IDE1006
public new bool CanRaiseEvents => base.CanRaiseEvents;
public new bool DesignMode => base.DesignMode;
public new EventHandlerList Events => base.Events;
public new IntPtr Instance => base.Instance;
public new int Options => base.Options;
public Func<OPENFILENAME, bool> RunFileDialogAction { get; set; }
private protected override bool RunFileDialog(OPENFILENAME* ofn)
{
return RunFileDialogAction(*ofn);
}
private protected override ComScope<IFileDialog> CreateVistaDialog() => default;
private protected override string[] ProcessVistaFiles(IFileDialog* dialog) => null;
public new void OnFileOk(CancelEventArgs e) => base.OnFileOk(e);
public new bool RunDialog(IntPtr hWndOwner) => base.RunDialog(hWndOwner);
}
private class EmptyResetFileDialog : SubFileDialog
{
public override void Reset()
{
}
}
}
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