public void DesignerActionItemCollection_Insert_DesignerActionItem_Success()
{
var collection = new DesignerActionItemCollection();
var value1 = new SubDesignerActionItem("displayName", "category", "description");
collection.Insert(0, value1);
Assert.Same(value1, Assert.Single(collection));
Assert.Same(value1, collection[0]);
Assert.True(collection.Contains(value1));
Assert.Equal(0, collection.IndexOf(value1));
var value2 = new SubDesignerActionItem("displayName", "category", "description");
collection.Insert(0, value2);
Assert.Equal(new object[] { value2, value1 }, collection.Cast <object>());
Assert.True(collection.Contains(value2));
Assert.Equal(0, collection.IndexOf(value2));
}
