public void TestXClose()
{
SpreadsheetViewStub stub = new SpreadsheetViewStub();
stub.spreadSheetPanel = new SpreadsheetPanel();
Controller controller = new Controller(stub);
stub.FireFileChosenEvent("../../testing1.ss");
stub.Contents = "2";
stub.FireContentsEvent();
FormClosingEventArgs e;
e = new FormClosingEventArgs(CloseReason.UserClosing, true);
stub.FireXCloseEvent(e);
Assert.AreEqual(true, e.Cancel);
}