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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 System.Drawing;
using System.Globalization;
using Point = System.Drawing.Point;
using Size = System.Drawing.Size;
namespace System.Windows.Forms.Tests;
public class DateTimePickerTests : IDisposable
{
private readonly DateTimePicker _dateTimePicker;
public DateTimePickerTests() => _dateTimePicker = new();
public void Dispose() => _dateTimePicker.Dispose();
[WinFormsFact]
public void DateTimePicker_Ctor_Default()
{
using SubDateTimePicker control = new();
Assert.Null(control.AccessibleDefaultActionDescription);
Assert.Null(control.AccessibleDescription);
Assert.Null(control.AccessibleName);
Assert.Equal(AccessibleRole.Default, control.AccessibleRole);
Assert.False(control.AllowDrop);
Assert.Equal(AnchorStyles.Top | AnchorStyles.Left, control.Anchor);
Assert.False(control.AutoSize);
Assert.Equal(SystemColors.Window, control.BackColor);
Assert.Null(control.BackgroundImage);
Assert.Equal(ImageLayout.Tile, control.BackgroundImageLayout);
Assert.Null(control.BindingContext);
Assert.Equal(control.PreferredHeight, control.Bottom);
Assert.Equal(new Rectangle(0, 0, 200, control.PreferredHeight), control.Bounds);
Assert.Equal(Control.DefaultForeColor, control.CalendarForeColor);
Assert.Equal(Control.DefaultFont, control.CalendarFont);
Assert.Equal(SystemColors.Window, control.CalendarMonthBackground);
Assert.Equal(SystemColors.ActiveCaption, control.CalendarTitleBackColor);
Assert.Equal(SystemColors.ActiveCaptionText, control.CalendarTitleForeColor);
Assert.Equal(SystemColors.GrayText, control.CalendarTrailingForeColor);
Assert.True(control.CanEnableIme);
Assert.False(control.CanFocus);
Assert.True(control.CanRaiseEvents);
Assert.True(control.CanSelect);
Assert.False(control.Capture);
Assert.True(control.CausesValidation);
Assert.True(control.Checked);
Assert.Equal(new Size(196, control.PreferredHeight - 4), control.ClientSize);
Assert.Equal(new Rectangle(0, 0, 196, control.PreferredHeight - 4), control.ClientRectangle);
Assert.Null(control.Container);
Assert.False(control.ContainsFocus);
Assert.Null(control.ContextMenuStrip);
Assert.Empty(control.Controls);
Assert.Same(control.Controls, control.Controls);
Assert.False(control.Created);
Assert.Same(Cursors.Default, control.Cursor);
Assert.Null(control.CustomFormat);
Assert.Same(Cursors.Default, control.DefaultCursor);
Assert.Equal(ImeMode.Inherit, control.DefaultImeMode);
Assert.Equal(new Padding(3), control.DefaultMargin);
Assert.Equal(Size.Empty, control.DefaultMaximumSize);
Assert.Equal(Size.Empty, control.DefaultMinimumSize);
Assert.Equal(Padding.Empty, control.DefaultPadding);
Assert.Equal(new Size(200, control.PreferredHeight), control.DefaultSize);
Assert.False(control.DesignMode);
Assert.Equal(new Rectangle(0, 0, 196, control.PreferredHeight - 4), control.DisplayRectangle);
Assert.Equal(DockStyle.None, control.Dock);
Assert.False(control.DoubleBuffered);
Assert.Equal(LeftRightAlignment.Left, control.DropDownAlign);
Assert.True(control.Enabled);
Assert.NotNull(control.Events);
Assert.Same(control.Events, control.Events);
Assert.False(control.Focused);
Assert.Equal(Control.DefaultFont, control.Font);
Assert.Equal(control.Font.Height, control.FontHeight);
Assert.Equal(SystemColors.WindowText, control.ForeColor);
Assert.Equal(DateTimePickerFormat.Long, control.Format);
Assert.False(control.HasChildren);
Assert.Equal(control.PreferredHeight, control.Height);
Assert.Equal(ImeMode.NoControl, control.ImeMode);
Assert.Equal(ImeMode.NoControl, control.ImeModeBase);
Assert.False(control.IsAccessible);
Assert.False(control.IsMirrored);
Assert.NotNull(control.LayoutEngine);
Assert.Same(control.LayoutEngine, control.LayoutEngine);
Assert.Equal(0, control.Left);
Assert.Equal(Point.Empty, control.Location);
Assert.Equal(new Padding(3), control.Margin);
Assert.Equal(new DateTime(9998, 12, 31), control.MaxDate);
Assert.Equal(Size.Empty, control.MaximumSize);
Assert.Equal(new DateTime(1753, 1, 1), control.MinDate);
Assert.Equal(Size.Empty, control.MinimumSize);
Assert.Equal(Padding.Empty, control.Padding);
Assert.Null(control.Parent);
Assert.Equal("Microsoft\u00AE .NET", control.ProductName);
Assert.Equal(new Size(200, control.PreferredHeight), control.PreferredSize);
Assert.Equal(Control.DefaultFont.Height + 7, control.PreferredHeight);
Assert.Equal(control.PreferredHeight, control.PreferredHeight);
Assert.False(control.RecreatingHandle);
Assert.Null(control.Region);
Assert.False(control.ResizeRedraw);
Assert.Equal(200, control.Right);
Assert.Equal(RightToLeft.No, control.RightToLeft);
Assert.False(control.RightToLeftLayout);
Assert.False(control.ShowCheckBox);
Assert.True(control.ShowFocusCues);
Assert.True(control.ShowKeyboardCues);
Assert.False(control.ShowUpDown);
Assert.Null(control.Site);
Assert.Equal(new Size(200, control.PreferredHeight), control.Size);
Assert.Equal(0, control.TabIndex);
Assert.True(control.TabStop);
Assert.Equal(string.Empty, control.Text);
Assert.Equal(0, control.Top);
Assert.Null(control.TopLevelControl);
Assert.False(control.UseWaitCursor);
Assert.True(control.Value > DateTime.MinValue);
Assert.True(control.Visible);
Assert.Equal(200, control.Width);
Assert.False(control.IsHandleCreated);
}
[WinFormsFact]
public void DateTimePicker_CreateParams_GetDefault_ReturnsExpected()
{
using SubDateTimePicker control = new();
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysDateTimePick32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x200, createParams.ExStyle);
Assert.Equal(control.PreferredHeight, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(0x56010004, createParams.Style);
Assert.Equal(200, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.False(control.IsHandleCreated);
}
[WinFormsFact]
public void DateTimePicker_GetAutoSizeMode_Invoke_ReturnsExpected()
{
using SubDateTimePicker control = new();
Assert.Equal(AutoSizeMode.GrowOnly, control.GetAutoSizeMode());
}
[WinFormsTheory]
[EnumData<DateTimePickerFormat>]
public void DateTimePicker_Format_Set_GetReturnsExpected(DateTimePickerFormat value)
{
using SubDateTimePicker control = new();
control.Format = value;
Assert.Equal(value, control.Format);
}
[WinFormsTheory]
[InvalidEnumData<DateTimePickerFormat>]
public void DateTimePicker_Format_SetInvalid_ThrowsInvalidEnumArgumentException(DateTimePickerFormat value)
{
using DateTimePicker control = new();
Assert.Throws<InvalidEnumArgumentException>("value", () => control.Format = value);
}
[WinFormsFact]
public void DateTimePicker_CalendarTitleBackColor_GetSet_ReturnsExpected()
{
using DateTimePicker control = new();
var expectedColor = Color.Red;
control.CalendarTitleBackColor = expectedColor;
control.CalendarTitleBackColor.Should().Be(expectedColor);
}
[WinFormsTheory]
[InlineData(null)]
[InlineData("")]
[InlineData("invalid color")]
public void DateTimePicker_CalendarTitleBackColor_SetInvalid_ThrowsArgumentException(string value)
{
using DateTimePicker control = new();
Action act = () => control.CalendarTitleBackColor = ColorTranslator.FromHtml(value);
act.Should().Throw<ArgumentException>();
}
[WinFormsFact]
public void DateTimePicker_CalendarForeColor_GetSet_ReturnsExpected()
{
using DateTimePicker control = new();
var expectedColor = Color.Red;
control.CalendarForeColor = expectedColor;
control.CalendarForeColor.Should().Be(expectedColor);
}
[WinFormsTheory]
[InlineData(null)]
[InlineData("")]
[InlineData("invalid color")]
public void DateTimePicker_CalendarForeColor_SetInvalid_ThrowsArgumentException(string value)
{
using DateTimePicker control = new();
Action act = () => control.CalendarForeColor = ColorTranslator.FromHtml(value);
act.Should().Throw<ArgumentException>();
}
[WinFormsFact]
public void DateTimePicker_CalendarTitleForeColor_GetSet_ReturnsExpected()
{
using DateTimePicker control = new();
var expectedColor = Color.Red;
control.CalendarTitleForeColor = expectedColor;
control.CalendarTitleForeColor.Should().Be(expectedColor);
}
[WinFormsTheory]
[InlineData(null)]
[InlineData("")]
[InlineData("invalid color")]
public void DateTimePicker_CalendarTitleForeColor_SetInvalid_ThrowsArgumentException(string value)
{
using DateTimePicker control = new();
Action act = () => control.CalendarTitleForeColor = ColorTranslator.FromHtml(value);
act.Should().Throw<ArgumentException>();
}
[WinFormsFact]
public void DateTimePicker_CalendarTrailingForeColor_GetSet_ReturnsExpected()
{
using DateTimePicker control = new();
var expectedColor = Color.Red;
control.CalendarTrailingForeColor = expectedColor;
control.CalendarTrailingForeColor.Should().Be(expectedColor);
}
[WinFormsTheory]
[InlineData(null)]
[InlineData("")]
[InlineData("invalid color")]
public void DateTimePicker_CalendarTrailingForeColor_SetInvalid_ThrowsArgumentException(string value)
{
using DateTimePicker control = new();
Action act = () => control.CalendarTrailingForeColor = ColorTranslator.FromHtml(value);
act.Should().Throw<ArgumentException>();
}
[WinFormsFact]
public void DateTimePicker_CalendarMonthBackground_GetSet_ReturnsExpected()
{
using DateTimePicker control = new();
var expectedColor = Color.Red;
control.CalendarMonthBackground = expectedColor;
control.CalendarMonthBackground.Should().Be(expectedColor);
}
[WinFormsTheory]
[InlineData(null)]
[InlineData("")]
[InlineData("invalid color")]
public void DateTimePicker_CalendarMonthBackground_SetInvalid_ThrowsArgumentException(string value)
{
using DateTimePicker control = new();
Action act = () => control.CalendarMonthBackground = ColorTranslator.FromHtml(value);
act.Should().Throw<ArgumentException>();
}
[WinFormsFact]
public void DateTimePicker_CalendarFont_GetSet_ReturnsExpected()
{
using (Font expectedFont = new("Arial", 8.25f))
{
_dateTimePicker.CalendarFont = expectedFont;
_dateTimePicker.CalendarFont.Should().Be(expectedFont);
}
using (Font differentFont = new("Times New Roman", 10f))
{
_dateTimePicker.CalendarFont = differentFont;
_dateTimePicker.CalendarFont.Should().Be(differentFont);
}
_dateTimePicker.CalendarFont = null;
_dateTimePicker.CalendarFont.Should().Be(_dateTimePicker.Font);
}
[WinFormsFact]
public void DateTimePicker_Checked_WhenShowCheckBoxTrueAndHandleCreated_ReturnsExpected()
{
_dateTimePicker.ShowCheckBox = true;
_dateTimePicker.CreateControl();
_dateTimePicker.Checked = true;
_dateTimePicker.Checked.Should().BeTrue();
_dateTimePicker.Checked = false;
_dateTimePicker.Checked.Should().BeFalse();
_dateTimePicker.Checked = true;
_dateTimePicker.Checked.Should().BeTrue();
}
[WinFormsTheory]
[InlineData(true)]
[InlineData(false)]
public void DateTimePicker_Checked_WhenShowCheckBoxAndHandleNotCreated_ReturnsExpected(bool value)
{
_dateTimePicker.ShowCheckBox = value;
_dateTimePicker.Checked = true;
_dateTimePicker.Checked.Should().BeTrue();
_dateTimePicker.Checked = false;
_dateTimePicker.Checked.Should().BeFalse();
}
[WinFormsFact]
public void DateTimePicker_CustomFormat_GetSet_ReturnsExpected()
{
_dateTimePicker.CustomFormat.Should().BeNull();
_dateTimePicker.Value = new(2021, 12, 31);
_dateTimePicker.CreateControl();
_dateTimePicker.Format = DateTimePickerFormat.Custom;
string newCustomFormat = "yyyy/MM/dd";
_dateTimePicker.CustomFormat = newCustomFormat;
_dateTimePicker.CustomFormat.Should().Be(newCustomFormat);
_dateTimePicker.Text.Should().Be("2021/12/31");
string newCustomFormat2 = "MM/dd/yyyy";
_dateTimePicker.CustomFormat = newCustomFormat2;
_dateTimePicker.CustomFormat.Should().Be(newCustomFormat2);
_dateTimePicker.Text.Should().Be("12/31/2021");
_dateTimePicker.CustomFormat = null;
_dateTimePicker.CustomFormat.Should().BeNull();
}
[WinFormsFact]
public void DateTimePicker_DropDownAlign_GetSet_ReturnsExpected()
{
_dateTimePicker.DropDownAlign.Should().Be(LeftRightAlignment.Left);
_dateTimePicker.DropDownAlign = LeftRightAlignment.Right;
_dateTimePicker.DropDownAlign.Should().Be(LeftRightAlignment.Right);
_dateTimePicker.DropDownAlign = LeftRightAlignment.Left;
_dateTimePicker.DropDownAlign.Should().Be(LeftRightAlignment.Left);
}
[WinFormsFact]
public void DateTimePicker_MaxDate_GetSet_ReturnsExpected()
{
_dateTimePicker.MaxDate.ToString().Should().Be("12/31/9998 12:00:00 AM");
DateTime expectedDate = new(2022, 12, 31);
_dateTimePicker.MaxDate = expectedDate;
_dateTimePicker.MaxDate.Should().Be(expectedDate);
DateTime initialMaxDate = _dateTimePicker.MaxDate;
_dateTimePicker.MaxDate = initialMaxDate;
_dateTimePicker.MaxDate.Should().Be(initialMaxDate);
}
[WinFormsTheory]
[InlineData("0001-01-01")]
[InlineData("9999-12-31")]
public void DateTimePicker_MaxDate_SetInvalid_ThrowsArgumentOutOfRangeException(string value)
{
Action act = () => _dateTimePicker.MaxDate = DateTime.Parse(value);
act.Should().Throw<ArgumentOutOfRangeException>();
}
[WinFormsFact]
public void DateTimePicker_MaximumDateTime_ReturnsExpected()
{
DateTime maxSupportedDateTime = CultureInfo.CurrentCulture.Calendar.MaxSupportedDateTime;
DateTime expectedDate = maxSupportedDateTime.Year > DateTimePicker.MaxDateTime.Year ? DateTimePicker.MaxDateTime : maxSupportedDateTime;
DateTime result = DateTimePicker.MaximumDateTime;
result.Should().Be(expectedDate);
}
[WinFormsFact]
public void DateTimePicker_MinDate_GetSet_ReturnsExpected()
{
_dateTimePicker.MinDate.ToString().Should().Be("1/1/1753 12:00:00 AM");
DateTime expectedDate = DateTimePicker.MinimumDateTime.AddDays(1);
_dateTimePicker.MinDate = expectedDate;
_dateTimePicker.MinDate.Should().Be(expectedDate);
}
[WinFormsFact]
public void DateTimePicker_MinDate_SetGreaterThanMaxDate_LessThanMinimumDateTime_Should_ThrowArgumentOutOfRangeException()
{
Action act = () => _dateTimePicker.MinDate = DateTimePicker.MaximumDateTime.AddDays(1);
act.Should().Throw<ArgumentOutOfRangeException>();
act = () => _dateTimePicker.MinDate = DateTimePicker.MinimumDateTime.AddDays(-1);
act.Should().Throw<ArgumentOutOfRangeException>();
}
[WinFormsFact]
public void DateTimePicker_MinDate_Set_AdjustsValueIfNeeded()
{
_dateTimePicker.Value = DateTimePicker.MinimumDateTime.AddDays(5);
DateTime newMinDate = DateTimePicker.MinimumDateTime.AddDays(10);
_dateTimePicker.MinDate = newMinDate;
_dateTimePicker.MinDate.Should().Be(newMinDate);
_dateTimePicker.Value.Should().Be(newMinDate);
}
[WinFormsFact]
public void DateTimePicker_MinimumDateTime_ReturnsExpected()
{
DateTime minSupportedDateTime = CultureInfo.CurrentCulture.Calendar.MinSupportedDateTime;
DateTime expectedDate = minSupportedDateTime.Year < 1753 ? new(1753, 1, 1) : minSupportedDateTime;
DateTimePicker.MinimumDateTime.Should().BeOnOrAfter(new DateTime(1753, 1, 1, 0, 0, 0));
DateTime result = DateTimePicker.MinimumDateTime;
result.Should().Be(expectedDate);
}
[WinFormsFact]
public void DateTimePicker_RightToLeftLayout_GetSet_ReturnsExpected()
{
_dateTimePicker.RightToLeftLayout.Should().Be(false);
_dateTimePicker.RightToLeftLayout = true;
_dateTimePicker.RightToLeftLayout.Should().Be(true);
_dateTimePicker.RightToLeftLayout = false;
_dateTimePicker.RightToLeftLayout.Should().Be(false);
}
[WinFormsFact]
public void DateTimePicker_ShowUpDown_GetSet_ReturnsExpected()
{
_dateTimePicker.ShowUpDown.Should().Be(false);
_dateTimePicker.ShowUpDown = true;
_dateTimePicker.ShowUpDown.Should().Be(true);
_dateTimePicker.ShowUpDown = false;
_dateTimePicker.ShowUpDown.Should().Be(false);
}
[WinFormsFact]
public void DateTimePicker_Text_GetSet_ReturnsExpected()
{
string validDateString = "2022-01-01";
_dateTimePicker.CreateControl();
_dateTimePicker.Text = validDateString;
_dateTimePicker.Text.Should().Be(DateTime.Parse(validDateString, CultureInfo.CurrentCulture).ToString("dddd, MMMM d, yyyy"));
_dateTimePicker.Text = null;
_dateTimePicker.Text.Should().Be(DateTime.Parse(DateTime.Now.Date.ToString(), CultureInfo.CurrentCulture).ToString("dddd, MMMM d, yyyy"));
_dateTimePicker.Text = string.Empty;
_dateTimePicker.Text.Should().Be(DateTime.Parse(DateTime.Now.Date.ToString(), CultureInfo.CurrentCulture).ToString("dddd, MMMM d, yyyy"));
}
[WinFormsFact]
public void DateTimePicker_Value_GetSet_ReturnsExpected()
{
DateTime initialDate = new(2022, 1, 1);
DateTime newDate = new(2023, 1, 1);
_dateTimePicker.Value = initialDate;
_dateTimePicker.Value.Should().Be(initialDate);
_dateTimePicker.Value = newDate;
_dateTimePicker.Value.Should().Be(newDate);
_dateTimePicker.Value = DateTimePicker.MinimumDateTime;
_dateTimePicker.Value.Should().Be(DateTimePicker.MinimumDateTime);
_dateTimePicker.Value = DateTimePicker.MaximumDateTime;
_dateTimePicker.Value.Should().Be(DateTimePicker.MaximumDateTime);
}
[WinFormsTheory]
[InlineData("0001-01-01")]
[InlineData("9999-12-31")]
public void DateTimePicker_Value_SetInvalid_ThrowsArgumentOutOfRangeException(string value)
{
Action act = () => _dateTimePicker.Value = DateTime.Parse(value);
act.Should().Throw<ArgumentOutOfRangeException>();
}
[WinFormsFact]
public void DateTimePicker_FormatChangedEvent_Raised_Success()
{
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(_dateTimePicker);
e.Should().Be(EventArgs.Empty);
callCount++;
};
_dateTimePicker.FormatChanged += handler;
_dateTimePicker.Format = DateTimePickerFormat.Short;
callCount.Should().Be(1);
_dateTimePicker.FormatChanged -= handler;
_dateTimePicker.Format = DateTimePickerFormat.Long;
callCount.Should().Be(1);
}
[WinFormsFact]
public void DateTimePicker_PaintEvent_Raised_Success()
{
using SubDateTimePicker control = new();
int callCount = 0;
PaintEventHandler handler = (sender, e) =>
{
sender.Should().Be(control);
e.Should().NotBeNull();
callCount++;
};
control.Paint += handler;
using (Bitmap bmp = new(1, 1))
{
control.OnPaint(new(Graphics.FromImage(bmp), default));
}
callCount.Should().Be(1);
control.Paint -= handler;
using (Bitmap bmp = new(1, 1))
{
control.OnPaint(new(Graphics.FromImage(bmp), default));
}
callCount.Should().Be(1);
}
[WinFormsFact]
public void DateTimePicker_MouseClickEvent_Raised_Success()
{
using SubDateTimePicker control = new();
int callCount = 0;
MouseEventHandler handler = (sender, e) =>
{
callCount++;
sender.Should().Be(control);
e.Should().NotBeNull();
};
control.MouseClick += handler;
control.OnMouseClick(new(MouseButtons.Left, 1, 0, 0, 0));
callCount.Should().Be(1);
control.MouseClick -= handler;
control.OnMouseClick(new(MouseButtons.Left, 1, 0, 0, 0));
callCount.Should().Be(1);
}
[WinFormsFact]
public void DateTimePicker_MouseDoubleClickEvent_Raised_Success()
{
using SubDateTimePicker control = new();
int callCount = 0;
MouseEventHandler handler = (sender, e) =>
{
callCount++;
sender.Should().Be(control);
e.Should().NotBeNull();
};
control.MouseDoubleClick += handler;
control.OnMouseDoubleClick(new(MouseButtons.Left, 1, 0, 0, 0));
callCount.Should().Be(1);
control.MouseDoubleClick -= handler;
control.OnMouseDoubleClick(new(MouseButtons.Left, 1, 0, 0, 0));
callCount.Should().Be(1);
}
[WinFormsFact]
public void DateTimePicker_CloseUpEvent_Raised_Success()
{
using SubDateTimePicker control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(control);
e.Should().Be(EventArgs.Empty);
callCount++;
};
control.CloseUp += handler;
control.OnCloseUp(EventArgs.Empty);
callCount.Should().Be(1);
control.CloseUp -= handler;
control.OnCloseUp(EventArgs.Empty);
callCount.Should().Be(1);
}
[WinFormsFact]
public void DateTimePicker_RightToLeftLayoutChangedEvent_Raised_Success()
{
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(_dateTimePicker);
e.Should().Be(EventArgs.Empty);
callCount++;
};
_dateTimePicker.RightToLeftLayoutChanged += handler;
_dateTimePicker.RightToLeftLayout = !_dateTimePicker.RightToLeftLayout;
callCount.Should().Be(1);
_dateTimePicker.RightToLeftLayoutChanged -= handler;
_dateTimePicker.RightToLeftLayout = !_dateTimePicker.RightToLeftLayout;
callCount.Should().Be(1);
}
[WinFormsFact]
public void DateTimePicker_ValueChangedEvent_Raised_Success()
{
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(_dateTimePicker);
e.Should().Be(EventArgs.Empty);
callCount++;
};
_dateTimePicker.ValueChanged += handler;
_dateTimePicker.Value = DateTime.Now;
callCount.Should().Be(1);
_dateTimePicker.ValueChanged -= handler;
_dateTimePicker.Value = DateTime.Now.AddDays(1);
callCount.Should().Be(1);
}
[WinFormsFact]
public void DateTimePicker_DropDownEvent_Raised_Success()
{
using SubDateTimePicker control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(control);
e.Should().Be(EventArgs.Empty);
callCount++;
};
control.DropDown += handler;
control.OnDropDown(EventArgs.Empty);
callCount.Should().Be(1);
control.DropDown -= handler;
control.OnDropDown(EventArgs.Empty);
callCount.Should().Be(1);
}
[WinFormsFact]
public void DateTimePicker_BackColorChangedEvent_Raised_Success()
{
using DateTimePicker control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(control);
e.Should().Be(EventArgs.Empty);
callCount++;
};
control.BackColorChanged += handler;
control.BackColor = Color.Red;
callCount.Should().Be(1);
control.BackColorChanged -= handler;
control.BackColor = Color.Green;
callCount.Should().Be(1);
}
[WinFormsFact]
public void DateTimePicker_BackgroundImageChangedEvent_Raised_Success()
{
using DateTimePicker control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(control);
e.Should().Be(EventArgs.Empty);
callCount++;
};
control.BackgroundImageChanged += handler;
using (Bitmap bmp = new(10, 10))
{
control.BackgroundImage = bmp;
}
callCount.Should().Be(1);
control.BackgroundImageChanged -= handler;
using (Bitmap bmp = new(20, 20))
{
control.BackgroundImage = bmp;
}
callCount.Should().Be(1);
}
[WinFormsFact]
public void DateTimePicker_BackgroundImageLayoutChangedEvent_Raised_Success()
{
using DateTimePicker control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(control);
e.Should().Be(EventArgs.Empty);
callCount++;
};
control.BackgroundImageLayoutChanged += handler;
control.BackgroundImageLayout = ImageLayout.Center;
callCount.Should().Be(1);
control.BackgroundImageLayoutChanged -= handler;
control.BackgroundImageLayout = ImageLayout.Stretch;
callCount.Should().Be(1);
}
[WinFormsFact]
public void DateTimePicker_ClickEvent_Raised_Success()
{
using SubDateTimePicker control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(control);
e.Should().Be(EventArgs.Empty);
callCount++;
};
control.Click += handler;
control.OnClick(EventArgs.Empty);
callCount.Should().Be(1);
control.Click -= handler;
control.OnClick(EventArgs.Empty);
callCount.Should().Be(1);
}
[WinFormsFact]
public void DateTimePicker_DoubleClickEvent_Raised_Success()
{
using SubDateTimePicker control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(control);
e.Should().Be(EventArgs.Empty);
callCount++;
};
control.DoubleClick += handler;
control.OnDoubleClick(EventArgs.Empty);
callCount.Should().Be(1);
control.DoubleClick -= handler;
control.OnDoubleClick(EventArgs.Empty);
callCount.Should().Be(1);
}
[WinFormsFact]
public void DateTimePicker_ForeColorChangedEvent_Raised_Success()
{
using DateTimePicker control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(control);
e.Should().Be(EventArgs.Empty);
callCount++;
};
control.ForeColorChanged += handler;
control.ForeColor = Color.Red;
callCount.Should().Be(1);
control.ForeColorChanged -= handler;
control.ForeColor = Color.Blue;
callCount.Should().Be(1);
}
[WinFormsFact]
public void DateTimePicker_PaddingChangedEvent_Raised_Success()
{
using DateTimePicker control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(control);
e.Should().Be(EventArgs.Empty);
callCount++;
};
control.PaddingChanged += handler;
control.Padding = new(10);
callCount.Should().Be(1);
control.PaddingChanged -= handler;
control.Padding = new(20);
callCount.Should().Be(1);
}
[WinFormsFact]
public void DateTimePicker_TextChangedEvent_Raised_Success()
{
using SubDateTimePicker control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(control);
e.Should().Be(EventArgs.Empty);
callCount++;
};
control.TextChanged += handler;
control.OnTextChanged(EventArgs.Empty);
callCount.Should().Be(1);
control.TextChanged -= handler;
control.OnTextChanged(EventArgs.Empty);
callCount.Should().Be(1);
}
[WinFormsTheory]
[InlineData(ControlStyles.ContainerControl, false)]
[InlineData(ControlStyles.UserPaint, false)]
[InlineData(ControlStyles.Opaque, false)]
[InlineData(ControlStyles.ResizeRedraw, false)]
[InlineData(ControlStyles.FixedWidth, false)]
[InlineData(ControlStyles.FixedHeight, true)]
[InlineData(ControlStyles.StandardClick, false)]
[InlineData(ControlStyles.Selectable, true)]
[InlineData(ControlStyles.UserMouse, false)]
[InlineData(ControlStyles.SupportsTransparentBackColor, false)]
[InlineData(ControlStyles.StandardDoubleClick, true)]
[InlineData(ControlStyles.AllPaintingInWmPaint, true)]
[InlineData(ControlStyles.CacheText, false)]
[InlineData(ControlStyles.EnableNotifyMessage, false)]
[InlineData(ControlStyles.DoubleBuffer, false)]
[InlineData(ControlStyles.OptimizedDoubleBuffer, false)]
[InlineData(ControlStyles.UseTextForAccessibility, false)]
[InlineData((ControlStyles)0, true)]
[InlineData((ControlStyles)int.MaxValue, false)]
[InlineData((ControlStyles)(-1), false)]
public void DateTimePicker_GetStyle_Invoke_ReturnsExpected(ControlStyles flag, bool expected)
{
using SubDateTimePicker control = new();
Assert.Equal(expected, control.GetStyle(flag));
// Call again to test caching.
Assert.Equal(expected, control.GetStyle(flag));
}
[WinFormsFact]
public void DateTimePicker_GetTopLevel_Invoke_ReturnsExpected()
{
using SubDateTimePicker control = new();
Assert.False(control.GetTopLevel());
}
[WinFormsFact]
public void DateTimePicker_SysTimeToDateTime_DoesnThrowException_If_SYSTEMTIME_IsIncorrect()
{
// We expect to hit Debug.Fail in this test and unless we clear listeners we will crash to xUnit runner:
// "The active test run was aborted. Reason: Test host process crashed : Process terminated. Assertion failed."
using (new NoAssertContext())
{
// An empty SYSTEMTIME has year, month and day as 0, but DateTime can't have these parameters.
// So an empty SYSTEMTIME is incorrect in this case.
SYSTEMTIME systemTime = default;
DateTime dateTime = (DateTime)systemTime;
Assert.Equal(DateTime.MinValue, dateTime);
}
}
[WinFormsFact]
public void DateTimePicker_CustomFormat_Null_Text_ReturnsExpected()
{
using DateTimePicker dateTimePicker = new();
DateTime dt = new(2000, 1, 2, 3, 4, 5);
dateTimePicker.Value = dt;
dateTimePicker.CreateControl();
Assert.Null(dateTimePicker.CustomFormat);
Assert.Equal(dt.ToLongDateString(), dateTimePicker.Text);
}
[WinFormsFact]
public void DateTimePicker_CustomFormat_Null_Format_Short_Text_ReturnsExpected()
{
using DateTimePicker dateTimePicker = new();
DateTime dt = new(2000, 1, 2, 3, 4, 5);
dateTimePicker.Value = dt;
dateTimePicker.Format = DateTimePickerFormat.Short;
dateTimePicker.CreateControl();
Assert.Null(dateTimePicker.CustomFormat);
Assert.Equal(dt.ToShortDateString(), dateTimePicker.Text);
}
[WinFormsFact]
public void DateTimePicker_CustomFormat_Null_Format_Time_Text_ReturnsExpected()
{
using DateTimePicker dateTimePicker = new();
DateTime dt = new(2000, 1, 2, 3, 4, 5);
dateTimePicker.Value = dt;
dateTimePicker.Format = DateTimePickerFormat.Time;
dateTimePicker.CreateControl();
Assert.Null(dateTimePicker.CustomFormat);
Assert.Equal(dt.ToLongTimeString(), dateTimePicker.Text);
}
[WinFormsFact]
public void DateTimePicker_CustomFormat_LongDatePattern_Text_ReturnsExpected()
{
using DateTimePicker dateTimePicker = new();
DateTime dt = new(2000, 1, 2, 3, 4, 5);
dateTimePicker.Value = dt;
Globalization.DateTimeFormatInfo dateTimeFormat = Globalization.CultureInfo.CurrentCulture.DateTimeFormat;
dateTimePicker.Format = DateTimePickerFormat.Custom;
dateTimePicker.CustomFormat = dateTimeFormat.LongDatePattern;
dateTimePicker.CreateControl();
Assert.Equal(dt.ToLongDateString(), dateTimePicker.Text);
}
[WinFormsFact]
public void DateTimePicker_CustomFormat_ShortDatePattern_Text_ReturnsExpected()
{
using DateTimePicker dateTimePicker = new();
DateTime dt = new(2000, 1, 2, 3, 4, 5);
dateTimePicker.Value = dt;
Globalization.DateTimeFormatInfo dateTimeFormat = Globalization.CultureInfo.CurrentCulture.DateTimeFormat;
dateTimePicker.Format = DateTimePickerFormat.Custom;
dateTimePicker.CustomFormat = dateTimeFormat.ShortDatePattern;
dateTimePicker.CreateControl();
Assert.Equal(dt.ToShortDateString(), dateTimePicker.Text);
}
[WinFormsFact]
public void DateTimePicker_CustomFormat_LongTimePattern_Text_ReturnsExpected()
{
using DateTimePicker dateTimePicker = new();
DateTime dt = new(2000, 1, 2, 3, 4, 5);
dateTimePicker.Value = dt;
Globalization.DateTimeFormatInfo dateTimeFormat = Globalization.CultureInfo.CurrentCulture.DateTimeFormat;
dateTimePicker.Format = DateTimePickerFormat.Custom;
dateTimePicker.CustomFormat = dateTimeFormat.LongTimePattern;
dateTimePicker.CreateControl();
Assert.Equal(dt.ToLongTimeString(), dateTimePicker.Text);
}
[WinFormsFact]
public void DateTimePicker_CustomFormat_ShortTimePattern_Text_ReturnsExpected()
{
using DateTimePicker dateTimePicker = new();
DateTime dt = new(2000, 1, 2, 3, 4, 5);
dateTimePicker.Value = dt;
Globalization.DateTimeFormatInfo dateTimeFormat = Globalization.CultureInfo.CurrentCulture.DateTimeFormat;
dateTimePicker.Format = DateTimePickerFormat.Custom;
dateTimePicker.CustomFormat = dateTimeFormat.ShortTimePattern;
dateTimePicker.CreateControl();
Assert.Equal(dt.ToShortTimeString(), dateTimePicker.Text);
}
public class SubDateTimePicker : DateTimePicker
{
public new bool CanEnableIme => base.CanEnableIme;
public new bool CanRaiseEvents => base.CanRaiseEvents;
public new CreateParams CreateParams => base.CreateParams;
public new Cursor DefaultCursor => base.DefaultCursor;
public new ImeMode DefaultImeMode => base.DefaultImeMode;
public new Padding DefaultMargin => base.DefaultMargin;
public new Size DefaultMaximumSize => base.DefaultMaximumSize;
public new Size DefaultMinimumSize => base.DefaultMinimumSize;
public new Padding DefaultPadding => base.DefaultPadding;
public new Size DefaultSize => base.DefaultSize;
public new bool DesignMode => base.DesignMode;
public new bool DoubleBuffered
{
get => base.DoubleBuffered;
set => base.DoubleBuffered = value;
}
public new EventHandlerList Events => base.Events;
public new int FontHeight
{
get => base.FontHeight;
set => base.FontHeight = value;
}
public new ImeMode ImeModeBase
{
get => base.ImeModeBase;
set => base.ImeModeBase = value;
}
public new bool ResizeRedraw
{
get => base.ResizeRedraw;
set => base.ResizeRedraw = value;
}
public new bool ShowFocusCues => base.ShowFocusCues;
public new bool ShowKeyboardCues => base.ShowKeyboardCues;
public new AutoSizeMode GetAutoSizeMode() => base.GetAutoSizeMode();
public new bool GetStyle(ControlStyles flag) => base.GetStyle(flag);
public new bool GetTopLevel() => base.GetTopLevel();
public new void OnClick(EventArgs e) => base.OnClick(e);
public new void OnDoubleClick(EventArgs e) => base.OnDoubleClick(e);
public new void OnTextChanged(EventArgs e) => base.OnTextChanged(e);
public new void OnPaint(PaintEventArgs e) => base.OnPaint(e);
public new void OnMouseClick(MouseEventArgs e) => base.OnMouseClick(e);
public new void OnMouseDoubleClick(MouseEventArgs e) => base.OnMouseDoubleClick(e);
public new void OnCloseUp(EventArgs e) => base.OnCloseUp(e);
public new void OnDropDown(EventArgs e) => base.OnDropDown(e);
}
}
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