public void CheckedListBox_OnDrawItem_Invoke_Success(Font font, Rectangle rect, int index, DrawItemState state, Color foreColor, Color backColor)
{
using var control = new SubCheckedListBox();
control.Items.Add("item1");
control.Items.Add("item2");
using var image = new Bitmap(10, 10);
using Graphics graphics = Graphics.FromImage(image);
var e = new DrawItemEventArgs(graphics, font, rect, index, state, foreColor, backColor);
control.OnDrawItem(e);
Assert.False(control.IsHandleCreated);
}
public void CheckedListBox_RefreshItems_InvokeNotEmpty_Success()
{
using var control = new SubCheckedListBox();
control.Items.Add("item1");
control.Items.Add("item2");
control.RefreshItems();
Assert.Equal(new object[] { "item1", "item2" }, control.Items.Cast <object>());
Assert.False(control.IsHandleCreated);
// Call again.
control.RefreshItems();
Assert.Equal(new object[] { "item1", "item2" }, control.Items.Cast <object>());
Assert.False(control.IsHandleCreated);
}
public void CheckedListBox_OnDrawItem_NullE_ThrowsNullReferenceException()
{
using var control = new SubCheckedListBox();
Assert.Throws <NullReferenceException>(() => control.OnDrawItem(null));
}
