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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.
#nullable enable
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Drawing.Design;
using System.Windows.Forms.TestUtilities;
using Moq;
namespace System.Windows.Forms.Design.Tests;
public class FormatStringEditorTests
{
private readonly FormatStringEditor _editor = new();
private readonly Mock<IWindowsFormsEditorService> _mockEditorService;
private readonly Mock<IComponentChangeService> _mockChangeService;
private readonly Mock<IServiceProvider> _provider;
private readonly Mock<ITypeDescriptorContext> _context;
private readonly DataGridViewCellStyle _cellStyle;
public FormatStringEditorTests()
{
_mockEditorService = new();
_mockChangeService = new();
_cellStyle = new() { Format = "Initial" };
_provider = new(MockBehavior.Strict);
_provider.Setup(p => p.GetService(typeof(IWindowsFormsEditorService))).Returns(_mockEditorService.Object);
_provider.Setup(p => p.GetService(typeof(IComponentChangeService))).Returns(_mockChangeService.Object);
_context = new(MockBehavior.Strict);
_context.Setup(c => c.Instance).Returns(_cellStyle);
}
[Theory]
[CommonMemberData(typeof(CommonTestHelperEx), nameof(CommonTestHelperEx.GetEditValueInvalidProviderTestData))]
public void EditValue_InvalidProvider_ReturnsValue(IServiceProvider provider, object value)
{
_editor.EditValue(null, provider, value).Should().Be(value);
}
[Theory]
[CommonMemberData(typeof(CommonTestHelperEx), nameof(CommonTestHelperEx.GetITypeDescriptorContextTestData))]
public void GetEditStyle_Invoke_ReturnsModal(ITypeDescriptorContext context)
{
_editor.GetEditStyle(context).Should().Be(UITypeEditorEditStyle.Modal);
}
[WinFormsFact]
public void EditValue_ShowsDialogAndUpdatesValue()
{
object? result = _editor.EditValue(_context.Object, _provider.Object, "NewValue");
result.Should().Be("NewValue");
_mockEditorService.Verify(es => es.ShowDialog(It.IsAny<FormatStringDialog>()), Times.Once);
}
[WinFormsFact]
public void EditValue_CallsOnComponentChanging_Once()
{
_editor.EditValue(_context.Object, _provider.Object, "NewValue");
_mockChangeService.Verify(
cs => cs.OnComponentChanging(_cellStyle, TypeDescriptor.GetProperties(_cellStyle)["Format"]),
Times.Once);
_mockChangeService.Verify(
cs => cs.OnComponentChanging(_cellStyle, TypeDescriptor.GetProperties(_cellStyle)["NullValue"]),
Times.Once);
_mockChangeService.Verify(
cs => cs.OnComponentChanging(_cellStyle, TypeDescriptor.GetProperties(_cellStyle)["FormatProvider"]),
Times.Once);
}
[WinFormsFact]
public void EditValue_WithDirtyDialog_CallsOnComponentChanged_Once()
{
using FormatStringDialog dialog = new(_context.Object);
_editor.TestAccessor().Dynamic._formatStringDialog = dialog;
dialog.TestAccessor().Dynamic._dirty = true;
_editor.EditValue(_context.Object, _provider.Object, "NewValue");
_mockChangeService.Verify(
cs => cs.OnComponentChanged(_cellStyle, TypeDescriptor.GetProperties(_cellStyle)["Format"], null, null),
Times.Once);
_mockChangeService.Verify(
cs => cs.OnComponentChanged(_cellStyle, TypeDescriptor.GetProperties(_cellStyle)["NullValue"], null, null),
Times.Once);
_mockChangeService.Verify(
cs => cs.OnComponentChanged(_cellStyle, TypeDescriptor.GetProperties(_cellStyle)["FormatProvider"], null, null),
Times.Once);
}
}
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