File: System\Windows\Forms\OpenFileDialogTests.cs
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Project: src\src\System.Windows.Forms\tests\UnitTests\System.Windows.Forms.Tests.csproj (System.Windows.Forms.Tests)
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
namespace System.Windows.Forms.Tests;
 
public class OpenFileDialogTests
{
    [WinFormsFact]
    public void OpenFileDialog_Ctor_Default()
    {
        using OpenFileDialog dialog = new();
        Assert.True(dialog.CheckFileExists);
        Assert.False(dialog.Multiselect);
        Assert.False(dialog.ReadOnlyChecked);
        Assert.True(dialog.SelectReadOnly);
        Assert.False(dialog.ShowPreview);
        Assert.False(dialog.ShowReadOnly);
    }
 
    [WinFormsTheory]
    [BoolData]
    public void OpenFileDialog_CheckFileExists_Set_GetReturnsExpected(bool value)
    {
        using OpenFileDialog dialog = new()
        {
            CheckFileExists = value
        };
        Assert.Equal(value, dialog.CheckFileExists);
 
        // Set same.
        dialog.CheckFileExists = value;
        Assert.Equal(value, dialog.CheckFileExists);
 
        // Set different.
        dialog.CheckFileExists = !value;
        Assert.Equal(!value, dialog.CheckFileExists);
    }
 
    [WinFormsTheory]
    [BoolData]
    public void OpenFileDialog_Multiselect_Set_GetReturnsExpected(bool value)
    {
        using OpenFileDialog dialog = new()
        {
            Multiselect = value
        };
        Assert.Equal(value, dialog.Multiselect);
 
        // Set same.
        dialog.Multiselect = value;
        Assert.Equal(value, dialog.Multiselect);
 
        // Set different.
        dialog.Multiselect = !value;
        Assert.Equal(!value, dialog.Multiselect);
    }
 
    [WinFormsTheory]
    [BoolData]
    public void OpenFileDialog_ReadOnlyChecked_Set_GetReturnsExpected(bool value)
    {
        using OpenFileDialog dialog = new()
        {
            ReadOnlyChecked = value
        };
        Assert.Equal(value, dialog.ReadOnlyChecked);
 
        // Set same.
        dialog.ReadOnlyChecked = value;
        Assert.Equal(value, dialog.ReadOnlyChecked);
 
        // Set different.
        dialog.ReadOnlyChecked = !value;
        Assert.Equal(!value, dialog.ReadOnlyChecked);
    }
 
    [WinFormsTheory]
    [BoolData]
    public void OpenFileDialog_SelectReadOnly_Set_GetReturnsExpected(bool value)
    {
        using OpenFileDialog dialog = new()
        {
            SelectReadOnly = value
        };
        Assert.Equal(value, dialog.SelectReadOnly);
 
        // Set same.
        dialog.SelectReadOnly = value;
        Assert.Equal(value, dialog.SelectReadOnly);
 
        // Set different.
        dialog.SelectReadOnly = !value;
        Assert.Equal(!value, dialog.SelectReadOnly);
    }
 
    [WinFormsTheory]
    [BoolData]
    public void OpenFileDialog_ShowPreview_Set_GetReturnsExpected(bool value)
    {
        using OpenFileDialog dialog = new()
        {
            ShowPreview = value
        };
        Assert.Equal(value, dialog.ShowPreview);
 
        // Set same.
        dialog.ShowPreview = value;
        Assert.Equal(value, dialog.ShowPreview);
 
        // Set different.
        dialog.ShowPreview = !value;
        Assert.Equal(!value, dialog.ShowPreview);
    }
 
    [WinFormsTheory]
    [BoolData]
    public void OpenFileDialog_ShowReadOnly_Set_GetReturnsExpected(bool value)
    {
        using OpenFileDialog dialog = new()
        {
            ShowReadOnly = value
        };
        Assert.Equal(value, dialog.ShowReadOnly);
 
        // Set same.
        dialog.ShowReadOnly = value;
        Assert.Equal(value, dialog.ShowReadOnly);
 
        // Set different.
        dialog.ShowReadOnly = !value;
        Assert.Equal(!value, dialog.ShowReadOnly);
    }
 
    [WinFormsFact]
    public void OpenFileDialog_Reset_Invoke_Success()
    {
        using OpenFileDialog dialog = new()
        {
            CheckFileExists = false,
            Multiselect = true,
            ReadOnlyChecked = true,
            SelectReadOnly = false,
            ShowPreview = true,
            ShowReadOnly = true
        };
 
        dialog.Reset();
        Assert.True(dialog.CheckFileExists);
        Assert.False(dialog.Multiselect);
        Assert.False(dialog.ReadOnlyChecked);
        Assert.True(dialog.SelectReadOnly);
        Assert.False(dialog.ShowPreview);
        Assert.False(dialog.ShowReadOnly);
    }
}